Support

Quick answers for Cortex Brain Trainer. Still stuck? Email us any time.

How does the free trial work?

Every game is unlocked free for 3 days. After that, a single one-time purchase unlocks everything for good. No subscription, ever. You can buy earlier from the unlock screen at any time.

How do I restore my purchase on a new device?

Open the app, go to the unlock screen and tap Restore purchases. As long as you are signed in to the same Apple ID or Google account you bought it with, the unlock is restored at no extra cost.

Where is my progress stored?

Your bests, streaks and settings are saved locally on your device. The app works fully offline and nothing is sent to any server.

Which files can the Speed Reader import?

TXT, PDF, DOCX and EPUB. Imported files are read and processed entirely on your device and are never uploaded.

Still need help?

Email stephane@studiobarbanson.com and we will get back to you.