Wi-Fi
Connect, open the target service, and repeat after a pause.
Reliability test
Reliability appears when conditions change.
Do more than a first launch: change networks, turn off the screen, return to the app, and reconnect.
24 hours without a card · up to 5 devices · subscription purchased separately
Evaluate connection reliability.
Reliability scenarios
Mobile data
Repeat without changing the server.
Network switch
Move between Wi-Fi and mobile data and check recovery.
Sleep
Turn off the screen, wait, and check access after returning.
Reconnect
Disconnect and reconnect several times.
Scenario boundary
When a VPN cannot solve the problem
Android may stop background processes because of battery settings or vendor policy.
Common questions
Does GRANI work in the background?+
The Android tunnel is designed for background use, but vendor battery controls can affect it.
Is recovery after a network switch guaranteed?+
No. Test on your device; reconnect or change protocol if recovery fails.
What should I send support?+
App version, model, network, protocol, error time, and diagnostic code.
GRANI
Get GRANIChoose an available versionTest it on your network.
The trial does not create a paid subscription.