تذكير بالاستغفار is a free Android app developed by OneDroid that aims to remind users to say Istighfar, a prayer of seeking forgiveness, throughout the day. The app sends notifications to remind users to recite Istighfar and can be used without an internet connection.

One of the app's main features is its user-friendly interface, making it easy to navigate and add specific prayers to the favorites list for easy access. Additionally, users can share prayers and the app itself with their friends.

Overall, تذكير بالاستغفار is a helpful app for those who want to increase their daily recitation of Istighfar. The app's simple design and notification feature make it easy to integrate into daily routines.