Overview
Interleaving Reading Timer helps you alternate between several books in one sitting. Register the books you are reading, set how often to switch, and the app signals each change — including while the screen is off.
Built around interleaving, a study approach where alternating between different material can aid retention. Useful when your focus fades partway through a single book.
Screenshots
Actual English app screens. Invoice30 screens include sample data.
Key features
- Rotate through multiple books
- Set how many books to read in a session and optionally name each one.
- Set your switch interval
- Choose how many minutes to spend on each book before moving to the next.
- Alerts even with the screen off
- A foreground service keeps the session running and signals each book switch.
- Sound and vibration settings
- Choose the alert sound, ringtone volume, vibration, and alarm length.
- Reading calendar
- Completed sessions are recorded by date so you can look back over them.




