SumizAI vs Euria

What Euria is

What Euria is

Euria is a free AI assistant from Swiss cloud provider Infomaniak, built around data sovereignty — all request processing, storage, and hosting happen exclusively in Infomaniak's own data centers in Switzerland, with no external providers and no data transfer abroad. The app is available on Android, iOS, and as a web version.

Privacy as the product's foundation

Euria is fully compliant with the GDPR and Switzerland's data protection act (FADP). Data is used only to keep the service running — no information is used to train AI models, build user profiles, or feed third-party systems. On top of that, an ephemeral mode offers an absolute level of confidentiality: message exchanges are never stored, leave no trace on the servers, and cannot be recovered by any means, not even by Infomaniak itself.

Key features

Beyond standard chat, Euria offers writing and text summarization, voice-to-text transcription, email handling, and search across the user's own documents. The model runs on open-source foundations, which allows independent verification of how requests are processed, unlike the closed models of the large US or Chinese providers. The hosting infrastructure runs on renewable energy, and waste heat from the server rooms is recovered to heat buildings — a rare feature among commercial AI services.

Who it's for

Euria suits sectors that need strong guarantees of security, confidentiality, and digital sovereignty — healthcare, education, law, finance, and public administration, where transferring data outside European jurisdiction can be legally problematic. Any individual user in Europe wanting a free alternative to American chatbots without compromising on privacy will appreciate it too.

Use cases

In practice Euria works well for handling sensitive medical or legal documents, where a requirement to store data within a specific jurisdiction is part of regulatory compliance. Someone handling confidential email correspondence can use ephemeral mode, confident that the conversation content will disappear without a trace once the session ends.

Pricing and business model

Euria is free for individual users, an unusual move in a market dominated by paid premium plans from the largest AI providers. Infomaniak, a company earning most of its revenue from hosting and cloud services for business, treats Euria partly as a brand-positioning play around European digital sovereignty.

Limitations and what to watch for

An open-source model hosted locally in Switzerland may not match the capability of the largest closed commercial models trained on far bigger compute budgets. It's also worth checking whether features like voice transcription or document search are available in all the languages you need — European AI projects sometimes prioritize French and German over others.

AI notes from confidential conversations

Euria offers no built-in export of conversations as organized notes, so a valuable answer a user wants to keep as an ai notes entry has to be copied manually before the session ends — especially important in ephemeral mode, where content disappears for good. Building an archive of ai notes from such confidential conversations therefore requires deliberate discipline about copying things over as you go.

What's worth checking before choosing

Before relying on Euria in a regulated context, check the current compliance documentation for your sector (healthcare, finance) and whether ephemeral mode actually meets your organization's audit requirements.

Positioning against the market

Euria enters a market dominated by American and Chinese providers of large language models, offering an alternative hosted exclusively within European jurisdiction — an argument that matters more as more public institutions and companies in Europe need to demonstrate compliance with local data-protection rules. For people building an ai notes archive from conversations about company or official matters, the simple fact that data never leaves Switzerland can be the deciding factor in choosing a tool, independent of the model's raw answer quality.

Bottom line

Euria is a free, fully Swiss AI assistant focused on data sovereignty and a trace-free ephemeral mode. Anyone who wants valuable ai notes from such confidential conversations to land automatically in a lasting, searchable archive has to copy them out by hand before the session ends.

Comparison with SumizAI

Euria and SumizAI differ in their approach to data persistence and AI provider choice. Euria leans into maximum ephemerality — data that's never stored can't leak, but it also never builds a knowledge archive. SumizAI turns conversations with an AI model into these notes — answers worth keeping land automatically as Markdown files in a vault the user owns, and the model is chosen from seven providers, including a local option (Ollama) or your own server, on your own API key. Anyone who prioritizes Swiss data sovereignty and a trace-free mode will pick Euria; anyone who wants these notes from AI conversations to build a lasting, searchable archive will find SumizAI the better-fitting tool.

That is our reading of the record. For AlternativeTo's own wording, see its page for Euria — the facts above were read on 2026-08-16.

What SumizAI is

A note-taking application built around a conversation with an AI model. You ask a question, the answer streams back, and the answers worth keeping become Markdown notes — filed into a vault that is a folder on your own disk.

A vault is a directory holding base.md, a generated table of contents up to six levels deep, and a notes/ folder with one .md file per note. Before a note is written it is checked against the ones already there, so the fourth note about the same idea gets merged instead of added. Links between notes are ordinary Markdown links to files that exist.

The model is never ours: you bring your own API key to one of seven providers — Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server — and pay that provider directly. A question sends the table of contents plus at most five relevant notes within a 24,000-character budget, and the app shows you which five it used.

Every answer kept this way becomes one of these ai notes, ready to search again months later without hunting back through old chats.

Side by side

Where they differ

• Euria is a place to have the conversation. SumizAI is not a chatbot — the conversation is the input, not the product. What comes out of it is a .md file with a title, a place in base.md and a duplicate check against the notes already in the vault. If you only want to talk to a model, you do not need SumizAI.
• Euria is open source (GPL-3.0), and SumizAI is not. If reading the source is what decides it for you, that is a real argument for Euria. The guarantee SumizAI offers instead is structural rather than legal: the notes are Markdown files in a folder you chose, so they open in any editor whether or not the application is running.
• AlternativeTo's description of Euria does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard .md files to a folder you picked, and an unpaid account can still export all of them.
• Euria's description mentions voice. SumizAI has no voice input and no transcription — the input is a typed conversation.
• Euria runs in the browser. SumizAI is a desktop and mobile application, and on the desktop the vault is a folder on your own disk rather than a document in someone's cloud.
• Both search. SumizAI's search reads the whole note — title, summary, body and the original question and answer — rather than titles alone.

Which one to pick