To redeem your points simply open the app, tap on the Founders Club tab and hit the redeem button to see your options. You’ll be taken to a private webpage where you can see your balance and redeem your points to plant trees, get gift cards or even cash. Redemption options are subject to availability.
Remember, if you keep your points they could be worth a lot more - they're related to the future value of Get My Slice as a company!