European Alternatives to Retool
Looking for a European alternative to Retool? Retool, Inc. is a San Francisco company, and its Customer Terms of Service name it as your contracting party, with courts in San Francisco County and no EU or UK entity in the contract.
Eleven European tools cover the job of building internal apps, portals and workflows: four open-source builders, three no-code builders, three enterprise low-code platforms and one workflow suite, from companies in the United Kingdom, the Netherlands, Ireland, Germany and Poland.
How we rank these tools — 4-step process
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1
European ownership, verified
The company is headquartered and incorporated in the EU, EEA or Switzerland, and processes customer data in Europe. A US parent company disqualifies a tool from this page regardless of where its servers are.
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2
Category fit and hands-on review
What the tool actually does, who it suits, and where it falls short — checked against the vendor’s own documentation, changelog and pricing page rather than its marketing copy.
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Compliance and pricing check
GDPR posture, hosting location and the prices quoted on this page are verified against the vendor’s public pricing before publication, and re-checked when we revisit the category.
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Position on this page
Placement on this page can be paid, and that can affect which tools appear here and the order they appear in. It never buys a good review: a tool that fails the checks above is not here at any price, and payment does not change the shortcomings we write about. A vendor can ask us to correct a factual error — not to remove a criticism.
Vendors can pay for visibility on this page. It never changes what an entry says about a product, including the criticism, and we earn nothing when you click through to a vendor. Paid placement can affect which tools appear here and the order they appear in. Editorial policy
11 European Alternatives to Retool
Budibase
Open-source internal tool builder from Belfast, free to self-host, with cloud plans from $19 a month
Baserow
Amsterdam open-source database with an application builder, a free plan and Dutch law
Noloco
Dublin builder of internal tools and client portals on Airtable, Postgres or its own tables, with a free plan
Lowcoder
Open-source Retool-style builder from London with 60+ data sources and a free Community Edition
Ninox
Berlin low-code database and app platform with a free plan for 5 users and published prices
Softr
Berlin AI app builder for internal tools and portals with a database and workflows included
Appsemble
Eindhoven open-source low-code platform with a free hosted tier and a EUR 50 a month standard tier
Mendix
Enterprise low-code platform contracted through Siemens in Rotterdam, with a free plan for prototypes
Betty Blocks
Alkmaar low-code platform with unlimited users per plan, from EUR 1,500 a month
Thinkwise
Apeldoorn model-driven platform for business-critical applications and legacy replacement
WEBCON
Krakow workflow and low-code suite with SaaS, private cloud and on-premises deployment
Key takeaways
- Retool, Inc. is a San Francisco company whose terms name Californian law and courts in San Francisco County, with SCCs for transfers.
- Budibase (Belfast) and Lowcoder (London) are the closest open-source routes: both can be self-hosted for free, and Budibase lists cloud plans from $19 a month.
- Baserow (Amsterdam) and Ninox (Berlin) are databases with app builders, each with a free plan and published per-user prices.
- Noloco (Dublin) and Softr (Berlin) suit portals and business apps that run on structured data, with less code than Retool.
- Mendix, Betty Blocks and Thinkwise are enterprise platforms, with prices that start in the hundreds or thousands of euros a month.
Why people leave Retool
Retool is the tool many developers reach for when a company needs an internal app: an admin panel on top of a database, a support dashboard, an approvals workflow. You connect a database or an API, drag components onto a canvas and add JavaScript or SQL where you need it. A free plan covers up to five users, and paid plans (Team, Business, Enterprise) add more users, permissions, audit logs and single sign-on, with self-hosting available as well.
It is run by Retool, Inc. of San Francisco. Its Customer Terms of Service, last updated on 28 May 2026, name Retool, Inc. as your contracting party, and the contract names Californian law with exclusive jurisdiction for courts in San Francisco County.
There is no arbitration clause. Data transfers outside Europe rely on Standard Contractual Clauses in a data processing addendum. None of that is unusual for a US vendor, but it does mean there is no EU or UK entity in your contract.
The eleven tools here are not clones of Retool. Four are open-source builders (Budibase, Baserow, Lowcoder, Appsemble), three are no-code builders for portals and business apps (Noloco, Softr, Ninox), three are enterprise low-code platforms (Mendix, Betty Blocks, Thinkwise), and WEBCON is a workflow suite. Which one fits depends on whether your team writes code and where the data lives.
- Your contract is with a San Francisco company The terms name Retool, Inc. and send disputes to courts in San Francisco County under Californian law. If you want a counterparty in the EU, the EEA or the UK, with a court close to home, every tool below contracts through a European entity: companies in Belfast, Amsterdam, Dublin, London, Berlin, Eindhoven, Rotterdam, Alkmaar, Apeldoorn and Krakow.
- Internal tools touch your most sensitive data An internal app usually sits directly on top of a production database or a customer system. That is the part of the stack where a data processing addendum, a subprocessor list and a clear answer on hosting matter most. Several tools here can run entirely on your own servers: Budibase, Lowcoder, Baserow and Appsemble are open source, and Betty Blocks, Mendix and WEBCON offer private or on-premises deployment.
- Seat-based pricing grows with every colleague Retool prices by user and splits builders from internal users, so a tool that every team ends up using becomes a growing line on the bill. Some alternatives price differently: Lowcoder charges by instance or API call, Betty Blocks sells flat plans with unlimited users, and Budibase self-hosted is free with unlimited users. That can be cheaper at scale, or more expensive for a tiny team, so it is worth modelling both.
- Retool is not the only shape of internal tool Some of the work Retool does is better served by a database with a built-in app builder (Baserow, Ninox) or by a portal builder (Noloco, Softr). If what you build is mostly forms, lists and approvals on structured data, you may not need a developer-first canvas at all.
What you have to replace, not just match
List the apps you run in Retool and sort them by how much custom code they hold. Apps that are mostly tables, forms and buttons on a database move to Budibase, Lowcoder, Noloco or Baserow with limited rework. Apps with heavy JavaScript transformers, many chained queries or custom components need a closer look, because component libraries and query models differ between tools.
Move one low-risk app first and run it beside the original for a few weeks. Inventory your data sources, since every tool here supports databases and REST APIs but the list of native connectors differs, and check how each one handles permissions, because rebuilding role rules is usually the slowest part of a migration.
The alternatives compared
| Position | Tool | Headquarters | Pricing | Jurisdiction |
|---|---|---|---|---|
| #2 | Baserow | Amsterdam, Netherlands | eu-eea | |
| #5 | Ninox | Berlin, Germany | eu-eea | |
| #8 | Mendix | Rotterdam, Netherlands | eu-eea | |
| #9 | Betty Blocks | Amsterdam, Netherlands | eu-eea | |
| #10 | Thinkwise | Apeldoorn, Netherlands | eu-eea | |
| #11 | WEBCON | Kraków, Poland | eu-eea |
How each alternative compares to Retool
Budibase
an open-source internal tool builder from Belfast
Best for: Developer-led teams that want a Retool-like builder they can host themselves
Budibase is run by Budibase Limited, registered in Northern Ireland (NI662141) at 46 Hill Street, Belfast, so your contract is with a UK company. The governing law and courts are not stated in the part of the terms that could be read.
Its open-source edition is free to self-host, with unlimited apps, automations and users, community support only. On the cloud, Pro is $19 a month, Premium $49 and Business $299, with end users at $5 a month each, hard monthly limits on actions and 14-day trials of the paid plans.
Budibase has moved toward AI agents and automations, and its plans are metered by actions and AI credits. That is a different pricing model from Retool's per-user plans, so model your own usage before comparing totals.
What Budibase does better than Retool
- A free self-hosted edition with unlimited users and apps
- Contract with a UK company in place of a San Francisco one
- Public cloud prices from $19 a month, with hard limits instead of surprise overages
- 14-day trials of the paid cloud plans
Where Budibase is a step down from Retool
- Smaller component and connector library than Retool
- Cloud plans cap creators and workspaces, and extra creators cost $50 a month each on Premium
- Usage is metered in actions and AI credits, which are harder to forecast than seats
- Governing law could not be verified
Standout against Retool. It is the only tool here that combines a free, unlimited self-hosted edition with public cloud plans under $20.
- Which law reaches it. eu-eea. Retool is run from the United States, so the CLOUD Act obliges the provider to hand over data on a valid order regardless of which country the servers are in.
Best for: Teams whose internal app is mostly structured data, forms and views
Baserow B.V. (registration 81129254) is in Amsterdam, and its terms apply Dutch law with disputes submitted to the courts of Amsterdam. It is one of the few tools on this page where law and forum are both plain in the text.
The Free plan has 3,000 rows and 2 GB of storage per workspace. Premium is $10 and Advanced $18 per user a month on annual billing, with Enterprise on request. A self-hosted licence is also available.
It is a database first and an app builder second. If your Retool apps are mostly a table with some forms and buttons, that is enough, but it will not replace a canvas full of custom queries and code.
What Baserow does better than Retool
- Dutch law and Amsterdam courts, stated plainly in its terms
- A free plan and public per-user prices
- Database and app in one product, so no separate data source to connect
- Self-hosted option
Where Baserow is a step down from Retool
- Less suited to complex logic and custom code than Retool
- Row limits on every plan (3,000 on Free, 50,000 on Premium)
- Fewer external data source connectors, because the data is meant to live in Baserow
- Prices are in dollars, not euros
Standout against Retool. The data and the app live in one open-source product under Dutch law.
Noloco
internal tools and client portals from Dublin
Best for: Teams that run on Airtable, Google Sheets or Postgres and want portals without code
Noloco Limited (company number 685318) is at 77 Camden Street Lower, Dublin, and its terms are governed by the laws of Ireland, with the Irish courts having authority over claims.
Its pricing page lists a Free plan with unlimited team seats, 50 active clients and 2,000 records, a Build plan at $65 a month on annual billing ($79 monthly) with 10 team seats, and Enterprise with SSO, audit logs and white-label options on request.
It connects to Airtable, Google Sheets, Postgres, HubSpot and others, and fits business apps better than engineering tools.
What Noloco does better than Retool
- Irish company under Irish law
- Free plan with unlimited team seats
- Public prices, with a 14-day trial and no credit card
- Client portals as a first-class use
Where Noloco is a step down from Retool
- Less control over code and queries than Retool
- Record limits (2,000 on Free, 25,000 on Build)
- SSO, audit logs and private data sources sit in Enterprise
- Priced in dollars
Standout against Retool. Unlimited team seats on the free plan make it the cheapest way to test a portal.
Lowcoder
an open-source, Retool-style builder from London
Best for: Developers who want a canvas, components and data sources they can host themselves
Lowcoder is offered by Lowcoder Software LTD at 20 Wenlock Road, London. The terms refer to UK jurisdiction, but a specific governing-law clause was not in the part that could be read.
The Community Edition is free and open source, provided as is, with no guarantee of support or updates. The Enterprise Edition needs a signed contract, and its pricing page lists $1,690 per instance or $0.01 per API call, with no per-user fee. It advertises 120+ components and 60+ data sources, with deployment on Docker, Helm and the main clouds.
That makes it the closest to Retool in shape, but with a smaller community and fewer finished templates.
What Lowcoder does better than Retool
- Open-source edition you can run yourself at no cost
- No per-seat or per-user charge on the Enterprise Edition
- UK contracting company, in place of a US one
- Deployment on Docker, Helm or your own cloud
Where Lowcoder is a step down from Retool
- Community Edition has no support or update guarantee
- No self-serve hosted plan with public monthly prices
- A smaller ecosystem and fewer ready-made apps than Retool
- Governing law could not be verified
Standout against Retool. It prices by instance or API call, so adding colleagues does not raise the bill.
- Which law reaches it. eu-eea. Retool is run from the United States, so the CLOUD Act obliges the provider to hand over data on a valid order regardless of which country the servers are in.
Best for: Small and mid-size teams building data-driven apps with views, forms and scripts
Ninox Software GmbH is in Berlin, registered at Amtsgericht Charlottenburg under HRB 154662 B. Its terms are governed by the laws of Germany and name the registered office of Ninox as the exclusive jurisdiction for disputes.
The Free plan covers 5 users, 5,000 records and 1,000 API calls a month. Team is €25 and Business €40 per user a month on annual billing, with Enterprise on request, and all plans include table, form, chart, Kanban, map and calendar views.
Ninox has its own scripting language and is closer to a database with apps than to a canvas on your database. It works best when the data is created and kept in Ninox.
What Ninox does better than Retool
- German company under German law
- A free plan for five users
- Public per-user prices in euros
- Many built-in views and a scripting language without leaving the tool
Where Ninox is a step down from Retool
- Built around data kept in Ninox, so less of a canvas over an existing production database
- Per-user pricing that rises with team size
- Record and API-call limits on lower plans
- A proprietary scripting language, not JavaScript or SQL
Standout against Retool. A self-contained database and app tool with a free tier and euro pricing under German law.
Softr
an AI app builder for internal tools and portals, from Berlin
Best for: Operations teams that want portals and internal apps with a database and workflows included
Softr Platforms GmbH is at Rosenthaler Strasse 13, Berlin. Its terms apply German law excluding the UN sales convention, and the place of jurisdiction is Berlin where both parties are merchants.
Softr describes itself as an AI app builder for business operations, to build internal tools and portals with databases, workflow automation and integrations included. Prices on its pricing page could not be read reliably, so no figure is quoted here.
It leans toward business users, not developers, so a code-heavy Retool app will not move over easily.
What Softr does better than Retool
- German company under German law
- Database, workflows and integrations bundled in one product
- Portals and user logins as a core feature
- Lower learning curve for non-developers
Where Softr is a step down from Retool
- Less control over code and queries than Retool
- Prices could not be verified for this page
- Not suited to complex engineering back-office apps
- Self-hosting was not verified on its public pages
Standout against Retool. It bundles a database, workflows and portal logins aimed at operations teams.
Appsemble
an open-source low-code platform from Eindhoven with European hosting
Best for: Public bodies and small teams that want open apps on European hosting
Appsemble BV is at Klokgebouw 272 in Eindhoven. Its pages are mostly in Dutch, with an English section, and a KvK number was not on the pages that were read. The platform is open source and available on GitLab.
A hosted free tier includes 3 apps with community support. Hosting on the Standard tier costs €50 a month excluding VAT, with European hosting, a backend and 10 GB of storage, and Enterprise starts at €100 a month per app. Self-hosting support starts at €40 a month per app. Custom app development starts at €5,000.
It is aimed at municipalities and public-sector projects, with a service model closer to an agency than to Retool.
What Appsemble does better than Retool
- Open source with European hosting, stated on its own pricing page
- Public prices for hosting and support
- A free hosted tier of 3 apps
- Dutch company, with a track record in public-sector projects
Where Appsemble is a step down from Retool
- Much smaller component and connector library than Retool
- Mostly Dutch-language site and community
- Prices are per app, which adds up with many apps
- KvK number and governing law could not be verified
Standout against Retool. Open-source apps with European hosting at a flat €50 a month.
- Which law reaches it. eu-eea. Retool is run from the United States, so the CLOUD Act obliges the provider to hand over data on a valid order regardless of which country the servers are in.
Best for: Enterprises building many business applications with governance and several deployment targets
Mendix lists Siemens Industry Software Netherlands B.V., Wilhelminakade 197 in Rotterdam (Dutch Chamber of Commerce 24380476), on its corporate information page. Mendix is a Siemens company, and the governing law is not stated on that page.
There is a Free plan for design, build and deployment of demos and prototypes, with unlimited users for deployed apps. Standard starts at €918 a month for one app or €2,295 for unlimited apps, and Premium is quoted on request. Deployment can be Mendix Cloud, private cloud on Azure, AWS or Kubernetes, SAP BTP, or on-premises.
It is built for departments and enterprise IT, not for a developer who wants a quick admin panel.
What Mendix does better than Retool
- Dutch contracting entity with a Dutch registration number
- Many deployment options, including on-premises
- Unlimited users for deployed apps
- Built for large, multi-team application portfolios
Where Mendix is a step down from Retool
- Prices start in the hundreds of euros a month, far above Retool's entry plans
- A heavy platform for a small admin panel
- Owned by a large industrial group
- Governing law could not be verified
Standout against Retool. Unlimited users on deployed apps and four deployment targets, for enterprise-scale programmes.
- Which law reaches it. eu-eea. Retool is run from the United States, so the CLOUD Act obliges the provider to hand over data on a valid order regardless of which country the servers are in.
Best for: Organisations that want to stop paying per user and own the apps they build
Betty Blocks B.V. is at Pettemerstraat 7 in Alkmaar, according to its privacy statement, which says the headquarters is there and the company works under GDPR. Our site data lists Amsterdam, so the statement is the source used here. The terms PDF could not be opened, so governing law is not stated.
Create is €1,500 a month and Scale €3,500, both with unlimited internal, external and anonymous users and unlimited builders, and Enterprise is on request. It says apps use open standards such as React and WebAssembly, and offers an on-premises option. No free trial is named on the pricing page.
That is a long way from Retool's free plan: it is a platform purchase for an organisation.
What Betty Blocks does better than Retool
- No per-user licence, with unlimited builders and users
- Dutch contracting company
- On-premises hosting option
- ISO 27001 and SOC 2 Type 2 stated on its pricing page
Where Betty Blocks is a step down from Retool
- Starts at €1,500 a month, with a €7,500 onboarding fee listed
- No free plan or trial mentioned
- Not a fit for a one-person admin tool
- Governing law could not be verified
Standout against Retool. Flat monthly plans that include unlimited users, builders and external users.
- Which law reaches it. eu-eea. Retool is run from the United States, so the CLOUD Act obliges the provider to hand over data on a valid order regardless of which country the servers are in.
Best for: Software vendors and IT teams replacing legacy business applications
Thinkwise's privacy statement names Thinkwise Innovation B.V. at Ovenbouwershoek 9 in Apeldoorn, acting for Thinkwise Software B.V. and Thinkwise Partners B.V. No registration number or governing law was on the pages that were read.
The site describes a model-driven platform with a software factory and an AI layer, aimed at replacing or modernising legacy software, with industries such as manufacturing, logistics and retail. Pricing is not published, and no trial is mentioned.
It is a different category from Retool: you model an application, and the platform generates it. Pick it for a core business system, not a quick dashboard.
What Thinkwise does better than Retool
- Dutch company, with documentation and an academy
- Designed for large, long-lived business applications
- A tool for upgrading legacy systems
- Model-driven approach that keeps logic in one place
Where Thinkwise is a step down from Retool
- No public prices
- No free plan or trial mentioned
- A steeper learning curve than a drag-and-drop builder
- Overkill for small internal tools
Standout against Retool. A model-driven approach to replacing legacy software.
- Which law reaches it. eu-eea. Retool is run from the United States, so the CLOUD Act obliges the provider to hand over data on a valid order regardless of which country the servers are in.
Best for: Organisations whose internal apps are mostly approvals, documents and processes
WEBCON is based at ul. Czerwone Maki 87 in Krakow. Its privacy policy names WEBCON S.A. as controller (tax number PL6762414097), while register listings that came up in search show a Sp. z o.o., so the legal form could not be verified. The company also has a US office.
Licensing is per user, in Lite, Core and Premium tiers, and a single licence covers unlimited applications, workflows and integrations. Deployment can be SaaS, private cloud on your own Azure, AWS or GCP tenant, or on-premises, and a perpetual licence is available for the last two. No amounts are published.
It is built around business process automation, not around custom dashboards on a database.
What WEBCON does better than Retool
- Polish company with SaaS, private cloud and on-premises deployment
- Unlimited apps and workflows per licence
- Perpetual licences for self-hosted setups
- Focus on approvals and document-heavy processes
Where WEBCON is a step down from Retool
- No published prices and no free plan
- Less suited to developer-built dashboards on a database
- Legal form could not be verified
- Smaller developer community than Retool
Standout against Retool. A workflow engine that comes as SaaS, private cloud or on-premises, with perpetual licences.
What actually breaks when you switch
Rebuilding is the main cost. No tool here imports Retool apps, and each one has its own component model, query layer and way of handling permissions. Count the apps and the custom JavaScript they contain before you decide on a tool, and keep the old one running until the new version has been checked by its users.
Check the data connectors you actually need. Every tool here connects to common databases and REST APIs, but native integrations differ, and the no-code builders (Noloco, Softr, Ninox) work best when the data is kept in a supported source or in their own tables.
Several of these can be self-hosted, which moves updates, backups and uptime onto your own team. That is a good trade for sensitive data, but it is real work, and the free open-source editions of Budibase and Lowcoder come without guaranteed support.
Is there a European tool that works like Retool?
Lowcoder and Budibase are the nearest in shape. Both let you connect data sources, build screens from components and add code where needed, and both have an open-source edition you can run yourself. Lowcoder advertises 120+ components and 60+ data sources, and Budibase has cloud plans as well as a free self-hosted edition.
Neither copies Retool feature for feature. If you depend on a particular Retool component or a native integration, check that the alternative has an equivalent before you commit.
Which of these can I try for free?
Baserow (3,000 rows), Noloco and Ninox (5 users, 5,000 records) list free plans, Appsemble has a free hosted tier with 3 apps, and Mendix has a free plan for prototypes. Budibase and Lowcoder are free when you self-host their open-source editions, and Budibase also offers 14-day trials of its paid cloud plans.
Betty Blocks, Thinkwise and WEBCON are sales-led, and Betty Blocks does not mention a free trial on its pricing page.
Which of these are open source?
Budibase, Lowcoder, Baserow and Appsemble publish open-source editions. Lowcoder splits them in two: the Community Edition is free and carries no support, while its Enterprise Edition needs a signed contract even though the source is open. Budibase and Baserow keep some enterprise features in paid tiers.
Open source lets you host the tool on your own servers, which answers questions about where the data sits. It also moves the work of updates, backups and uptime to your own team.
Do I need a developer to use these?
Not for all of them. Noloco, Softr, Ninox and Baserow are built so that someone who understands the business data can assemble an app without writing code. Budibase and Lowcoder sit in between: no-code for layouts, code for logic. Mendix, Betty Blocks, Thinkwise and WEBCON are platforms that usually come with a team or a partner, since the license is aimed at departments and enterprises.
Which one to pick
If your team writes code and wants the nearest thing to Retool, start with Budibase or Lowcoder: both are open source, both can be hosted on your own servers, and both are run from the UK. Budibase has public cloud plans from $19 a month, and Lowcoder prices by instance or API call, with no per-user charge.
If your internal apps are mostly structured data, Baserow and Ninox give you a database and app in one product with free plans and public prices, and Noloco and Softr are the picks for portals and business apps with less code.
Mendix, Betty Blocks, Thinkwise and WEBCON are platform purchases for organisations, with prices that start in the hundreds or thousands of euros a month or are not published. Appsemble sits apart as an open-source option with European hosting, and fits public-sector style projects best.
Be realistic about the gap. Retool has the widest component library and the most native integrations, and none of these eleven imports a Retool app. Switch if you want a European or UK contracting party, or a different pricing model, and stay if your apps depend on Retool components with no equivalent.
Frequently Asked Questions
For a developer-friendly internal tool builder, Budibase is the best-rounded answer on this page, because you can self-host it for free, choose cloud plans from $19 a month and keep a Belfast company as your counterparty. Lowcoder is the closer match if you want a Retool-style canvas and plan to host yourself, and Baserow is the choice if the data and the app should live in the same place.
No. Retool, Inc. is based at 1550 Bryant Street in San Francisco. Its Customer Terms of Service name Retool, Inc. as the contracting party and its privacy policy relies on Standard Contractual Clauses for data transfers from Europe.
It has a free plan for up to five users, and paid Team, Business and Enterprise plans. Retool prices builders and internal users separately and gives a discount for annual billing. The amounts shown on its pricing page appeared in euros when fetched and may depend on your country, so check the page for your own figures.
The open-source edition is free to self-host with unlimited apps and users. On its cloud pricing page, Pro costs $19 a month, Premium $49 and Business $299, and end users cost $5 a month each extra. Enterprise, including self-hosted enterprise features, is priced on request.
Baserow has a free plan with 3,000 rows and 2 GB of storage per workspace, then Premium at $10 and Advanced at $18 per user a month on annual billing. Ninox has a free plan for up to five users and 5,000 records, then Team at €25 and Business at €40 per user a month on annual billing.
Noloco lists a free plan, Build at $65 a month on annual billing ($79 monthly) and Enterprise on request. Appsemble has a free hosted tier with 3 apps and a standard hosted tier at €50 a month excluding VAT. Lowcoder is free as a Community Edition, and its Enterprise Edition is priced at $1,690 per instance or $0.01 per API call, with no per-user fee.
Mendix has a free plan for prototypes and charges from €918 a month for one app or €2,295 for unlimited apps on Standard, with Premium on request. Betty Blocks lists Create at €1,500 a month and Scale at €3,500, with unlimited users and builders, and Enterprise on request. Both are priced for departments, not individuals.
Mendix lists Siemens Industry Software Netherlands B.V., Wilhelminakade 197 in Rotterdam, registered with the Dutch Chamber of Commerce under 24380476. Mendix is part of Siemens. The governing law is not stated on the corporate information page, so check your order form.
Budibase, Lowcoder and Baserow can be run on your own infrastructure, and Appsemble is open source and sells support for self-hosted use from €40 a month per app. Mendix, Betty Blocks and WEBCON advertise private cloud or on-premises options. Retool also offers self-hosting, with some capabilities such as unlimited users and single sign-on reserved for Enterprise.
No tool on this page imports Retool apps. Plan to rebuild the screens, queries and permissions, and keep the original running until the new version is checked. Your data stays in your own database, so the data layer does not move.
Noloco and Softr describe client portals as a core use, with permissions and sign-in for external users. Baserow has an application builder for external users on its higher plans, and Betty Blocks sells unlimited internal, external and anonymous users in its plans. Check the limits on external users for the plan you would pick.
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