LockOn is a second screen for a War Thunder session. Leave the phone next to the monitor and check it there, instead of alt-tabbing out of the game.
It shows the vehicle you are in, whether you are in a battle or in the hangar, and how long the battle has been going. You pick a research goal. The phone shows how much research is left. After a few saved matches, it also estimates how many matches and how much time that goal still needs. When you return to the hangar, the match is already in the history on the phone.
The app is free. There are no ads. There is no account to create and no game login. LockOn does not ask for a password and cannot change the game or the account. Match history stays on the phone and is not uploaded.
While War Thunder is running, the game already serves read-only match data on the PC. LockOn reads that data over your home network. It does not modify the client, and it does not show enemy positions or anything that would give an advantage in a match.
Remaining research cost uses the public vehicle tree from wtgrind.app, with permission. LockOn is not affiliated with that site. The local match data does not include final research points and silver lions, so those rewards can be entered by hand after the match. Clear in History deletes the saved matches.
The interface is available in English, Ukrainian, and Russian.
Google Play: https://play.google.com/store/apps/details?id=com.motivate.lock.on.assistant
War Thunder is a trademark of Gaijin Entertainment. LockOn is not affiliated with, endorsed by, or sponsored by Gaijin Entertainment. Questions are welcome in this thread.