Test your color perception and train your eyes with fun color challenges
Frequently Asked Questions
How do I restore my purchase? Open the app, go to Settings, and tap "Restore Purchases".
The app is crashing. What should I do? Try force-closing and restarting the app. Make sure you have the latest version installed. If the issue persists, reinstall the app.
How do I cancel a subscription? Go to your device Settings → Apple ID → Subscriptions (iOS) or Google Play → Subscriptions (Android), then select the app and cancel.
Can I use the app offline? Many features work offline. Some features that require an internet connection will show a notification.
What languages are supported? This app supports 17 languages: English, Japanese, Chinese (Simplified & Traditional), Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Thai, Indonesian, Turkish, Dutch, and Vietnamese.
I have feedback or a feature request. We'd love to hear from you! Send us an email at the address below.
Contact Us
Have a question, found a bug, or need help? We're here for you.