SumizAI vs KamuAI

What KamuAI is

What KamuAI is

KamuAI is a Finnish, privacy-focused AI chat assistant compatible with Windows, Mac, and Linux. It operates completely offline or with EU-hosted models, never uploads data, keeps chats secure, supports multiple tabs at once, prompt libraries, organized conversations, and flexible usage-based pricing. That combination of features makes KamuAI one of the more complete, privacy-oriented alternatives to popular American AI assistants, aimed at users willing to pay more for the peace of mind that comes with full control over their own data.

Coming from Finland places KamuAI among Scandinavian tech companies known for a strict approach to personal data protection, often going beyond the minimum requirements of EU regulations. The ability to work fully offline, with no internet connection whatsoever, addresses the strictest privacy requirement scenarios — situations where even EU hosting isn't enough and data cannot leave the local device in any form, such as handling information covered by state secrecy, professional confidentiality, or attorney-client privilege, where no cloud provider's assurance is ever quite enough.

A pricing model based on actual usage, instead of a fixed monthly subscription, lets users pay proportionally to how intensively they use the tool, which matters for people using an assistant occasionally compared to those relying on it heavily every day, holding dozens of conversations and saving conclusions as regular ai notes.

Someone using KamuAI for work demanding high privacy — a lawyer, doctor, or investigative journalist — holds many organized conversations at once, drawing on prompt libraries tailored to specific task types. Despite the app's built-in conversation organization, there's no lasting, portable archive of findings independent of any specific KamuAI installation, which becomes a problem the moment a computer needs replacing or findings need sharing with someone who lacks access to that same installation.

An investigative journalist running a months-long investigation, using KamuAI to analyze sensitive documents and source conversations, needs a way to safely preserve key findings outside the app itself, so that even losing access to their working computer wouldn't mean losing knowledge gathered over the course of the investigation for good.

SumizAI complements KamuAI exactly at that point: key findings from organized conversations, together with proven prompts from the library, can be saved as ai notes in a local Markdown file, fully aligned with both tools' privacy philosophy. A professional using KamuAI across several devices (Windows at the office, Mac at home) ends up with one consistent ai notes independent of which device or operating system they happen to be working on.

These tools complement each other: KamuAI provides private, flexible AI conversation offline or in the EU, while SumizAI ensures key findings from those conversations survive as these notes fully controlled by the user, regardless of platform or operating system. A doctor consulting KamuAI while analyzing a complex case ends up with these notes holding the full reasoning history, ready to be referenced months later for a similar patient case.

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

• KamuAI 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.
• KamuAI is freemium: there is a free tier and a paid one, and the line between them is the thing to read before committing. SumizAI has one plan at a dollar a month, so there is no feature held back for a higher tier — and an unpaid account still opens and exports every vault it already has.
• AlternativeTo's description of KamuAI 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.
• AlternativeTo lists no mobile version of KamuAI. SumizAI runs on macOS, Windows, iOS and Android.
• Both are run from the EU: SumizAI's operator is registered in Poland and the servers are in Germany.

Which one to pick