Thalassa Assistant
Budapest desktop app that suggests sourced answers live in a conversation, with no bot, and writes a debrief afterwards
Quick Overview
| Company | Thalassa Consulting Kft. (Cg. 13 09 200621) |
|---|---|
| Category | AI Meeting Assistants |
| Headquarters | Budapest, Hungary |
| EU Presence | EU (Hungary) |
| Data Location | Hosting on AWS in Frankfurt (eu-central-1). Speech recognition runs on the vendor's listed EU endpoint and answers come from Claude models on Amazon Bedrock in the EU. The knowledge base is searched on the user's device; audio is never stored and the transcript is deleted after the conversation. Optional web search sends the query to Anthropic in the USA under the EU Standard Contractual Clauses, and the vendor says it can be turned off |
| Open Source | No |
| Compliance | No certification found on the vendor's pages; a data processing agreement is available on request |
| Pricing | Standard €29.90 a month (30 conversation hours), Professional €59.90 (75 hours, adds briefing and debriefing), Premium €99.90 (130 hours); business prices exclude VAT, annual billing is cheaper, as shown on the pricing page (as of November 2026). Enterprise on request; live translation costs €0.23 a minute extra. |
| Free Option | Free trial inside the app, no payment method: one conversation of up to 15 minutes and 5 preparations |
| Replaces | Otter.ai, Fireflies, Microsoft Copilot in Teams |
Detailed Review
Thalassa Assistant is a desktop app for Windows and macOS from Thalassa Consulting Kft., a Budapest company. It listens to a conversation and, in a window only the user sees, drafts replies to questions it detects. Answers are taken first from the user's own documents, with the document and page cited, and the internet is only a fallback. No bot joins the call and nobody appears in the participant list.
Before a meeting it builds a briefing from the user's files, and afterwards it can produce a closing report with open points and commitments.
On where data goes, the vendor is specific: the knowledge base is indexed and searched on the user's device, hosting is on AWS in Frankfurt, and speech recognition and answers run on EU endpoints.
Audio is not stored and the transcript is deleted after the conversation. The exception is the optional web search, which, according to the vendor's privacy policy, sends the query to Anthropic in the USA under the European Commission's Standard Contractual Clauses; the vendor says it can be turned off. A data processing agreement is available on request.
A free trial gives one conversation of up to 15 minutes. Paid plans start at €29.90 a month excluding VAT (as of November 2026), and briefing and debriefing begin at the Professional plan. It is a tool for talking, not a note archive: unlike Jamie, it is built around being prompted during the conversation, and the vendor lists no certification, so the claims above are the vendor's own.
What Thalassa Assistant does well
- Hungarian company with a registration number, VAT number and full imprint
- No meeting bot, and the window is hidden from screen sharing where the operating system allows
- Answers cite the user's own documents, searched on the device
- Audio is not stored and the transcript is deleted after the conversation
- Free trial without payment details and published euro prices
Where Thalassa Assistant falls short
- Optional web search goes to Anthropic in the USA
- Debriefing only from the Professional plan, and its time counts against conversation hours
- No certification found on the vendor's pages
- Desktop only, no mobile app
Standout feature. It is the only tool in this category built to prompt the user live during a conversation, with answers sourced from the user's own documents.
Pros and Cons
Pros
- Hungarian company with a registration number, VAT number and full imprint
- No meeting bot, and the window is hidden from screen sharing where the operating system allows
- Answers cite the user's own documents, searched on the device
- Audio is not stored and the transcript is deleted after the conversation
- Free trial without payment details and published euro prices
Cons
- Optional web search goes to Anthropic in the USA
- Debriefing only from the Professional plan, and its time counts against conversation hours
- No certification found on the vendor's pages
- Desktop only, no mobile app
Alternatives to Thalassa Assistant
Frequently Asked Questions
What is Thalassa Assistant?
Thalassa Assistant is a desktop app for Windows and macOS from Thalassa Consulting Kft., a Budapest company. It listens to a conversation and, in a window only the user sees, drafts replies to questions it detects. Answers are taken first from the user's own documents, with the document and page cited, and the internet is only a fallback. No bot joins the call and nobody appears in the participant list.
Where is Thalassa Assistant based?
Thalassa Assistant operates from Budapest, Hungary, which places it under EU (Hungary). Compliance: No certification found on the vendor's pages; a data processing agreement is available on request.
What does Thalassa Assistant cost?
Standard €29.90 a month (30 conversation hours), Professional €59.90 (75 hours, adds briefing and debriefing), Premium €99.90 (130 hours); business prices exclude VAT, annual billing is cheaper, as shown on the pricing page (as of November 2026). Enterprise on request; live translation costs €0.23 a minute extra.. Free trial inside the app, no payment method: one conversation of up to 15 minutes and 5 preparations.
Who is Thalassa Assistant best for?
Professionals in sales, advisory or interviews who want sourced answer suggestions during a live conversation and a debrief afterwards, with no bot in the call. It is the only tool in this category built to prompt the user live during a conversation, with answers sourced from the user's own documents.
What are the drawbacks of Thalassa Assistant?
Optional web search goes to Anthropic in the USA. Debriefing only from the Professional plan, and its time counts against conversation hours. No certification found on the vendor's pages. Desktop only, no mobile app.
Is Thalassa Assistant a good alternative to Otter.ai?
Thalassa Assistant is built as a European alternative to Otter.ai: Budapest desktop app that suggests sourced answers live in a conversation, with no bot, and writes a debrief afterwards. It will not be a like-for-like feature match in every respect, so check the review above for where the two genuinely differ before switching.
How does Thalassa Assistant compare to other AI Meeting Assistants tools?
Thalassa Assistant is one of several European AI Meeting Assistants tools we cover. It is most often compared with Otter.ai, Fireflies, Microsoft Copilot in Teams.