Android Pay is a system of payment for purchases in payment terminals using smartphones from Google. With it, you can pay for purchases where contactless payment is accepted (Magnet, M.Video, KFC and many others), and you can also use it in online services and stores (Ozon, Yandex.Taxi, etc.). This system is available to Visa and MasterCard cardholders from the following banks:
AK Bars;
Alfa Bank;
Binbank;
VTB 24;
Opening;
MTS-Bank;
Promsvyazbank;
Raiffeisenbank;
Rosselkhozbank;
Russian standard;
Sberbank;
Tinkoff;
Yandex money.
To work with this application you need to have a device with Android 4.4 or higher, as well as with NFC and without root-rights. It is possible to work with the clock based on Android Wear 2.0.
After the download is complete, the downloaded file will be displayed in the notification shade (top), and will also be located in the "Download" folder (any file manager )
Install the downloaded APK file using any file manager or by clicking on it (on the downloaded file) in the notification shade
If you are installing apps for the first time not from Google Play (but using a file manager or browser), you will need to grant the appropriate permission. This is done only once.
If the file was downloaded with the bin extension, then there are 2 options:
Change the extension of the downloaded file to apk using any file manager ("rename" function)
To update the application, install the new version of the application over (without deleting) the old one.
This update will only be possible if the previous version of the application is downloaded from us. Otherwise, there will be a signature conflict and you will see the message "Application not installed".
For what "Signatures" are and what they are for, read here.