Apps like RSL FOTA

Here are some great alternatives to RSL FOTA by ON Semiconductor Corp :
nRF Connect Device Manager
nRF Connect Device Manager
★4.2
nRF Connect for Mobile
nRF Connect for Mobile
★4.1
nRF Device Firmware Update
nRF Device Firmware Update
★3.5
nRF Toolbox for Bluetooth LE
nRF Toolbox for Bluetooth LE
★3.7
GATTBrowser
GATTBrowser
★3.6
nRF Cloud Gateway
nRF Cloud Gateway
★3.2
Bluetooth Scanner
Bluetooth Scanner
★3.2
Mijia Temperature
Mijia Temperature
★3.8
Mastercool® Connect
Mastercool® Connect
★3.7
Bluetooth LE Scanner
Bluetooth LE Scanner
★3.9
BLE Checker - Check Bluetooth
BLE Checker - Check Bluetooth
★4.4
Bluetooth Commander
Bluetooth Commander
★3.3
BLE Analyser
BLE Analyser
★3.7
STM32 Utils
STM32 Utils
★4.4
BLE Scanner (Connect & Notify)
BLE Scanner (Connect & Notify)
★3.8
m365 DownG
m365 DownG
★4.0