About this app
Thoughtbook is a journal for the thoughts you would not put anywhere else. Everything you write is locked on your device. No account, no cloud, no sync. Nothing you write ever leaves your phone, so nobody can read it but you. Not even us. What's inside • A plain, fast editor that gets out of the way • A calendar view of everything you've written • Favourites, for the ones worth coming back to • Encrypted backups you can move to a new phone • Works offline, always Thoughtbook is free and open source, so you can check that it does exactly what it says.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 23, 2026 · 5:53 PM Free
Screenshots
