Keep Reading (在讀) is a mobile app. It uses psychological principles to help you build a habit of reading. Start the timer while you read. The app will log the duration of your reading on each day so that you can keep track of your progress. It also shows you how many consecutive days you have read. But note: This number resets to zero if you skip reading for the whole day! So, keep reading. 

The app is currently available for Android.

An iOS version was also developed but it is currently unavailable because I have stopped subscribing to Apple Developer.