Try Participate Learning — Better teaching through digital resources.

Gravity Screen Pro - On/Off


by Plexnor


Developer Notes

Install it only if you have difficulty to Unlock the Free version by In-app Purchase.

If you have purchased this app and want to change to the Unlocked version:
- unlock the Free version by In-app Purchase
- send me the two purchase numbers or the two receipts you got from Google Play
- and...