Polarity Checker (Donate KEY)

This is the Donation key for the App called Polarity Checker. Purchase this key if you want to support development or if you want to remove Ads. Notes: Removing Ads will work from Polarity Checker version 1. 2 and up. If you uninstall this key, the Ads will show up again. This Key won't showup as an extra App in your app drawer.