Koaich vs. Notion
The workspace docs leader.
What Notion optimizes for
Notion's bet is the flexible page model — and the vendor-side cleartext storage that makes search, AI, and public publishing trivial.
- ·Server-side encryption with Notion-held keys — their team has technical access to your content
- ·AI features that can read every page you've written ($8–24/user/month Plus, Business, Enterprise tiers)
- ·Public publishing — the model is built for content the world is supposed to read
Where Koaich is different
For private documents — strategy docs, client deliverables, financial models — Notion's encryption is server-side (Notion holds the keys), and their team has access to your content. Koaich encrypts documents on your device with keys we can't decrypt.
Pick Notion when
Your documents are non-sensitive enough that vendor-readable storage doesn't matter to you.
Pick Koaich when
For the private subset of what a Notion workspace contains — the documents where the answer to 'could Notion's CEO read this?' is 'definitely not.'
Questions people ask about Notion and Koaich
Is Notion end-to-end encrypted?
No. Notion uses server-side encryption — Notion holds the keys to every workspace. Notion's engineering team has technical access to document content, which is what powers full-text search, Notion AI, and public publishing.
Can Notion read my documents?
Yes. Documents in Notion are stored as data Notion can read on its servers. Notion's privacy controls are policy-level (employee access logs, role-based access), not cryptographic.
Does Notion AI use my documents to train models?
Notion AI uses workspace content as grounding for its features within a customer's workspace. Notion has publicly stated it does not train its general models on customer data, but the architectural ability to read content remains by design.
Is there a zero-knowledge alternative to Notion?
Koaich is an end-to-end encrypted workspace where documents are encrypted on the user's device with keys the vendor cannot derive. The server stores only ciphertext. Search and AI run client-side, after decryption.
Switching from Notion?
Get on the waitlist. Invites are going out in waves.