How to Cancel a ProtonMail Subscription Apr 22, 2021, 9:30 am EDT | 2 min read ProtonMail has both free and paid plans that allow you to send and receive emails securely. If you’ve been paying for ProtonMail for a while but would like to downgrade to the free plan, you can do so relatively easily. Before You Downgrade Your ProtonMail Plan A paid ProtonMail subscription grants you features and additional storage that you don’t get with a free plan. Before you downgrade, you should make sure that you prepare your account accordingly. When you downgrade to the free tier, your account will be limited to the following: