Apps like nRF Blinky

Here are some great alternatives to nRF Blinky by Nordic Semiconductor ASA :
Bluetooth LE Scanner
Bluetooth LE Scanner
★4.0
Auto Bluetooth Connect Devices
Auto Bluetooth Connect Devices
★3.3
RSL FOTA
RSL FOTA
★3.3
FluvalSmart
FluvalSmart
★3.4
Bluetooth On/Off Widget
Bluetooth On/Off Widget
★4.1
GATTBrowser
GATTBrowser
★3.6
Lefebure NTRIP Client
Lefebure NTRIP Client
★4.2
Lost Bluetooth Device Finder 2
Lost Bluetooth Device Finder 2
★3.8
Bluetooth Firewall
Bluetooth Firewall
★4.4
Bluetooth Radar
Bluetooth Radar
★4.2
Bluetooth Remote
Bluetooth Remote
★4.6
BLE Scanner (Connect & Notify)
BLE Scanner (Connect & Notify)
★4.1
P1 Keyboard
P1 Keyboard
★5.0
Bluetooth Classic
Bluetooth Classic
★3.9
Bluetooth Radar Trial
Bluetooth Radar Trial
★4.0
Seecure®
Seecure®
★4.3