Problems with the app
Update the app, check your connection, and make sure you are signed in to the same account as on the website. The app needs the internet to work. Payments made in the app are handled through Restore Purchases.
Updated October 17, 2026
"No Internet Connection"
The app needs the internet to load lessons and check your code. There is no offline mode. Check your Wi-Fi or mobile data and tap RETRY. Your typed code is kept on the device while you are offline.
The app looks wrong or crashes
- Update Coddy from the App Store or Google Play.
- Close the app completely and open it again.
- Restart your phone.
My progress isn't in the app
Sign in with the same method you use on the website. Facebook sign-in is on the website only, so link Google, Apple or a password there first. See Find lost progress.
I can't find a course
Math and chess courses are on the website only for now. Open coddy.tech in your browser.
I paid but don't have Pro
Use Restore Purchases in Settings, while signed in to the right account. See I paid but I don't have Pro.
Notifications don't arrive
Turn on Phone Notifications in the app's Preferences, and allow notifications for Coddy in your phone's settings. See Notifications and emails.