To be able to redeem one Magic Cube you need to collect 100 Cube Fragments.
1. Go to Store
2. Open Redeem page
3. Open Cube Fragment page
4. Tap on Exchange button on the bottom.
5. Confirm redemption.
After successful redemption, you will see the congratulation message.
A total number of available Cube Fragments you can find on top of the screen.
In case Cube Fragments are not enough to exchange for Magic Cube you will see the error message "Not enough tokens, unable to redeem".