Balance Control download for android 12 (Snow Cone)

This is UI part of system for storage and control of USSD messages.
Features:
* Full history of USSD messages
* Control - user can hide USSD messages, which are not requested by him. Some operators use USSD to spam their users, and this feature is designed to fight against such practices.
* Screens - USSD messages, full history, easy dial of USSD commands.
* Easy dialing of USSD requests like request for Balance, or request for left minutes (SMS, MB)
* Export - user can export USSD messages, full history (USSD messages, outgoing calls, outgoing SMS), USSD commands.
* This product works with up to 4 SIM cards, although we tested it with phone with 2 SIM cards. Although we recognize SIM card for most of USSD, we cannot recognize SIM card for all USSD messages. But we work in this direction.
Full history screen is designed to help you to find what caused decrease of your balance.
Now we have USSD commands only for 3 Bulgarian operators. We rely on your help to add support for more operators.
Please fill free to write us mail, with number of your operator (you can see it in Action screen) then we will try to find all possible USSD commands supported by your operator.