Используйте приложение APKPure
Историческую версию BLE Numeric Remote можно получить на Android
Send numeric data to a Bluetooth LE device
This app communicates between Android and Bluetooth LE (BLE) device. Numeric data will be transmited as text or value.
Default the Nordic UART UUIDs are used for service and characteristic. You can change them with the option menu Configuration.
Text enabled: text data transmission
Text disabled: numeric data transmission in byte mode
Newline enabled: '\n' (newline) added only when Text enabled
Newline disabled: no additional data
Zero enabled (Touch/Sense enabled): Send 0 on release button