Исповедь is a free Android application designed for recording and preparing for confession in the Orthodox tradition. It allows users to easily input information about their sins without having to carry around a notebook all day. Inputting sinful behavior is made easy with just two button clicks: choose the passion and then the specific manifestation of the sin. If there is time, users can also input additional circumstances. The app is based on the diary of S.M. Maslennikov, with sins divided by passions and a list of common sins for each passion. There is also an "other" category for recording manifestations of sin not included in the quick list.

Aside from inputting sinful behavior, Исповедь also includes the following features:

1. Preparation for confession

2. Marking sins as confessed (removing them from the confession mode and transferring them to the history section)

3. Statistics, which allows users to indirectly determine which passion is dominant

4. History storage and erasure

5. Emailing history in Excel format

6. Help section with descriptions of sinful behavior

Overall, Исповедь is a quick and easy way for Orthodox Christians to record their sins and prepare for confession.