Zero Entropy Lab
Support
Cranial Gym
We're here to help. Reach out for any questions, feedback, or issues with the app.
Common Topics
- Subscription and billing questions
- Restore purchases
- Account issues
- Reporting a bug
- General feedback
We typically respond within 24–48 hours.
Cranial Gym is a cognitive training app by Zero Entropy Lab, designed to sharpen your memory, focus, and mental arithmetic through daily training sessions.