Diagnose your WiFi
The key is reusable and never expires. It is tied to a number of machines, not to a username — there is no account to create and nothing to log into. Use it on 2 devices at a time, and free a slot from your manage link whenever you replace a machine.
This is not heavy DRM. It exists to stop casual sharing, not to defeat a determined reverse-engineer.
Pay with any Midtrans method. Your license key arrives by email as soon as the payment clears.
Enter the key in the app once. It registers this machine and never phones home again.
After activation the app runs with no internet. Swap machines from your manage link whenever you like.