If you are a lucky owner of the promo code, then you are eligible to turn off all advertisements in the app for FREE. Below you will find simple instruction how to use it.
1. Start purchase flow
Note: you need an internet connection to redeem the code
Proceed with the purchase flow by clicking the "OK" button
3. Expand the payment method
Now you will see the Google dialog, which will guide you further. Start by expanding the menu by clicking the price.
4. Click "Redeem"
Most important thing is visible now. Simply click "Redeem" to open new window.
5. Type in your code and redeem it
Finally type in carefully the promo code that you got and click "Redeem" button. Now google will consume the promo code and I promise that the advertisements won't be shown anymore.