what do you when trying to install an app and it shows your device is not compatibile

Need help asap plz

It may be that the phone's hardware cannot run the app. If it's a software deficiency, you could try upgrading the OS.

There's nothing you can do. It's not going to work because of your device's hardware/firmware limitations

Snap!!

While pugs1957 is absolutely correct, there's nothing you can do to force an app on a non compatible device, it simply will not work. You can email the dev and explain your plight, need, and desire for the app and perhaps they can code it for one of the updates. But yeah not compatible is not compatible.