Rapid logging.
Fully yours.
A fast, distraction-free journal for your phone and wrist. No accounts, no ads, no tracking — your entries are yours alone. And when you sync, they travel end-to-end encrypted, so only you can ever read them. Inspired by The Bullet Journal method created by Ryder Carroll (bulletjournal.com)
Log it in a tap.
Migrate it in a swipe.
Every day gets its own page. Capture tasks, notes, and events into 15-minute time slots — or drop them under Anytime. Tap a bullet to cycle open → done → cancelled. Star what matters. Didn't get to it? Migrate it forward. Tag an entry with where it happened — the location stays on your device, like everything else.
Zoom out to the month, the quarter, or break free of dates entirely.
The Monthly Log spreads tasks and events across the weeks ahead; the Future Log plans by quarter across the years. Collections hold everything that doesn't belong to a date — free-Markdown documents or structured logs built from reusable templates.
A photo is worth a thousand notes.
Attach up to 10 photos to events and notes, and in collections. They're downscaled to compact memory-joggers — never archival bloat — and open in a full-screen, swipeable, pinch-to-zoom viewer. Delete one and it lands in the Trash, fully restorable.
Today, on your wrist.
Today's log mirrors to your Apple Watch. Cycle a task's state from the wrist, or dictate a new note straight into the microphone — it syncs back the moment your phone is reachable.
The watch holds only a plaintext snapshot of today — no key, no database, no photos. It re-scopes itself automatically at every local midnight.
Encrypted by default.
Yours by design.
No account. No email. No telemetry. Your journal lives in a file-protected database on your device, and the only key is derived from a password only you know.
A 256-bit master key wrapped by PBKDF2-SHA256 at 600,000 rounds. Change your password without ever re-encrypting your data.
The database uses iOS Data Protection — AES-encrypted by a class key tied to your passcode and the Secure Enclave. Unreadable while locked.
Lose your password and a BIP-39 recovery phrase re-derives the master key on any device. No reset email, because there's no server that could send one.
Your data leaves whenever you want.
No lock-in, ever. Export the whole journal to a single Markdown file for archival or printing — or write an encrypted backup you can restore on a new device with your recovery password.
Sync everywhere.
On a server you own.
There is no Nisshi cloud. You run the sync server yourself — on a home machine or any host you like. It stores nothing but encrypted blobs keyed by a random account id, never holds your key, and makes no outbound requests to anyone.
We're putting the final polish on it. Write to info@nisshi.app and we'll tell you the moment it ships.