The tool was downloaded and set up by over 10M users and the latest stable update was on Oct 15, 2019. There are advertisements in this application. A lot of users set up the app on their Samsung and Sony devices.
A free .apk installation package of Почта России 4.3 can be downloaded from Droid Informer and you can have a look at users' reviews on this site. Prepare 14 MB of free space on your device for this app installer.
Based on the users’ feedback, the strong sides of the app are a good design and automatic updates.