The Bitmart phone app will not open and announce the update. It allows you to update from their server or Google Play. However, there is no latest 3.12.1 version on Google Play, it states that my app is up to date. Is it safe to download this application directly from them? The phone warns that it is not.
If you trust the development team, contact them via their Google Play email and confirm the required version. Contact them via the built-in chat at
https://www.bitmart.com/en-US or the GBM Foundation Company email.