Private by default
Take your learning with you.
Sign in to keep your progress, saved lectures, notes, and streak available across devices. Anything already saved on this device will be brought with you.
- Resume on another phone or computer
- Keep saved items and notes together
- Continue privately unless you join the leaderboard
Sync progress
How cross-device sync works
Google handles authentication. Improving Muslim does not store your email, name, or profile photo in the learning-data database. Your watch history, saved items, and streak stats are synced to your Firebase account ID. Leaderboard sharing is optional.
Google handles authentication. On first sign-in, learning data from this device is merged with the account. Newer progress wins, completed lectures stay completed, and saved items from both places are kept.
What stays local
Guest mode remains available
Without sign-in, your progress stays in this browser's local storage. It does not leave this device, but it also will not automatically appear on your other devices.