You can enter a discount code (coupon) on the web or in the desktop app when you subscribe. This includes the student discount.
You can't enter a code in the mobile app
The iPhone and Android apps don't have a place to enter a code. Subscriptions in the app go through Apple or Google Play, and they don't accept our codes. To use a code, subscribe on the web. Your subscription then works in the mobile apps too. Just log in.
How to enter your code
Open the web app at app.amazingmarvin.com or the desktop app. On your phone, you can tap sidebar > Account & Settings > Account > Open the web app.
Go to your Account page and open Billing.
Click Subscribe.
Click Have a discount code?, type your code and click Apply.
Already subscribed?
In the iPhone or Android app: a code can't be added to that subscription. Cancel it in your Apple or Google Play account first, then subscribe on the web (app.amazingmarvin.com) with your code once it has ended, so you don't pay twice.