Fast Idea Book vs Rune Secure Notes

A frictionless capture pad for the ideas you would otherwise lose. If you have ever woken at 3 AM with a great idea and nothing to write it on, or watched a brilliant phrase evaporate while you opened a heavier app, Fast Idea Book is for you. It is a calm, on-device idea book built around one job — capture the thought before it fades — and one principle: never make you wait or sign in. Open the app and you are already typing. Quick notes save with a single keystroke. Brainstorm freely without folder rituals, then tag entries afterward when your brain wants structure. Voice memo capture for hands-free moments, brain-dump templates for foggy mornings, and a search that surfaces the half-remembered note in seconds. Home Screen and Lock Screen widgets keep the latest idea visible, and the interface ships in 39 languages with full accessibility. Built for writers, founders, students, designers and anyone whose best ideas arrive at the worst possible moment.

Rune is a calm, fast notes app for people who don't want to trust an app with their data. Your notes never leave your device, they are encrypted at rest, and the app makes no network connections at all. There is no account, no cloud, and no sign-up. Privacy by construction, not by promise: • No telemetry, no analytics, no crash reporting, no advertising, no tracking, none, not "anonymised", not "aggregated". • No networking code. Put your device in airplane mode and everything still works. If anything ever tries to reach the network, that is a bug. • No account and no server. There is no "we" that could hold your data. Real encryption: • Your passphrase derives a key with Argon2id; notes are sealed with XChaCha20-Poly1305 authenticated encryption. Only ciphertext is ever written to disk. • The passphrase is never stored and is not recoverable. If you forget it, your notes are gone, no reset, no backdoor. That is the price of real privacy. • A wrong passphrase simply cannot decrypt your notes. • Optional Face ID / Touch ID unlock: opt in to unlock with biometrics. Even then the passphrase is never stored — only the in-memory key is cached behind the biometric prompt. What you can do: • Create, edit, search, and organise plain-text notes with a clean, calm layout. • Auto-lock on inactivity and lock-on-background; the app starts locked. • Export an encrypted backup (safe to keep anywhere); plaintext export is gated behind an explicit warning. • Capture voice notes and transcribe them to text entirely on your device with on-device speech recognition — no audio and no transcript ever leaves your phone. Free and open source under the GNU GPLv3. The security-critical code is a small, dependency-light core so it can be read and audited. Releases ship with cryptographic provenance and are built reproducibly, so you can verify the binary was built from this source.