inSign

German e-signature software with a web app, a REST API and an on-premise edition, hosted in Germany

Quick Overview

Company inSign GmbH
Category E-Signature Software
Headquarters Marzling, Germany
Founded 2022
EU Presence EU (Germany)
Data Location Germany, in a German provider's data centre (provider not named); on-premise option for inSign enterprise
Open Source No
Compliance ISO 27001; BITMi "Software Hosted in Germany" and "Software Made in Germany" labels
Pricing inSign 365 €24.90 per user/month billed annually or €26.90 monthly, excl. VAT, 12-month minimum term / inSign connect (API) and enterprise on request; QES at a surcharge
Free Option Free test account, no credit card
Replaces DocuSign, Adobe Acrobat Sign

Detailed Review

Pros and Cons

Pros

  • On-premise edition, so signed documents need never reach a vendor cloud
  • German company in Bavaria, owned through BSI Software AG in Dättwil, Switzerland
  • Hosted product runs in a German provider's data centre
  • ISO 27001
  • Published seat price of €24.90 per user/month annually, €26.90 monthly
  • Free test account with no credit card

Cons

  • Twelve-month minimum term on inSign 365
  • The German hosting provider is not named
  • QES comes from an unnamed partner at a surcharge that is not published
  • inSign connect, the API, and the enterprise editions are priced on request
  • Not open source

Alternatives to inSign

See all E-Signature software →

Frequently Asked Questions

What is inSign?

inSign is the answer to a question the rest of this category cannot answer: what if you do not want to take anyone's word about the hosting at all. inSign enterprise can be installed on-premise, so the documents sit on hardware the customer controls and no vendor cloud is involved. For a hospital, an insurer or a public body with a rule about that, it decides the shortlist by itself.

Where is inSign based?

inSign operates from Marzling, Germany, which places it under EU (Germany). Compliance: ISO 27001; BITMi "Software Hosted in Germany" and "Software Made in Germany" labels.

What does inSign cost?

inSign 365 €24.90 per user/month billed annually or €26.90 monthly, excl. VAT, 12-month minimum term / inSign connect (API) and enterprise on request; QES at a surcharge. Free test account, no credit card.

Who is inSign best for?

German firms that would rather run the signing software themselves. The on-premise edition: the only option here where the signed documents can stay on hardware you own.

What are the drawbacks of inSign?

Twelve-month minimum term on inSign 365. The German hosting provider is not named. QES comes from an unnamed partner at a surcharge that is not published. inSign connect, the API, and the enterprise editions are priced on request. Not open source.

Who worked on this review

Three people touch every tool page: one writes it, a second edits it, and a third checks the compliance and pricing claims against the vendor's own documentation.

Ingrid Halvorsen
Written by

Ingrid Halvorsen

Managing Editor · Oslo, Norway

Runs the review process and decides when a page is ready to publish or needs another pass.

Sebastiaan Smits
Edited by

Sebastiaan Smits

Founder & Editor · Netherlands

Selects the tools, writes the reviews, and checks where each company is actually established.

Marta Kowalczyk
Fact-checked by

Marta Kowalczyk

Senior Analyst, Infrastructure & Developer Tools · Warsaw, Poland

Covers hosting, developer tooling and the practical side of moving workloads to European providers.

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