G Tapp

The G Tapp application transforms your smartphone into a contactless point of sale in an exceptional way.

G Tapp is designed to serve businesses of all sizes that need to manage payments. Forget about purchasing additional readers or terminals and dealing with complicated configurations.

With G Tapp the download, authentication and payment process are quick and simple. When your customer has a contactless card, digital wallet, smartwatch or any NFC device, you just need to bring it closer, wait and in less than 5 seconds, the payment will be completed.

In addition, G Tapp guarantees the same security as a physical terminal. It accepts Visa, MasterCard, American Express, dollars, national currency and even offers interest-free month options.

The payment process is simple:
1. Enter the amount to be charged.
2. Ask your client to bring their physical card, wallet or smartwatch closer to the back of your smartphone.
3. Wait for the bank's response.
4. And that's it! Send the receipt to your client by email.

G Tapp makes use of the AccessibilityService API mainly to implement security issues, one of them is to identify window changes to other applications, which allows us to detect that any application or element does not overlap on G Tapp to prevent the indications from being modified when user while using the G Tapp; On the other hand, we also make use of the AccessibilityService API to detect the Picture-in-Picture feature, which prevents overlapping views on G Tapp, in order to guarantee the correct and secure flow of transactions made through G Tapp .