QED Support
We are happy to help. Most questions are answered below, and you can always reach us by email.
Contact
Email: pradeep.aneesh@gmail.com
We usually reply within a couple of business days.
Frequently asked questions
How do I play?
Each puzzle shows a few lines of numbers that follow one hidden rule. Find the rule, then enter the answer for the last line using the on screen keypad.
I am stuck. What can I do?
Tap for a free nudge to get oriented. If you want more help, optional deeper hints and a built in AI tutor can guide you toward the answer.
Does the app work offline?
Yes. All puzzles, hints, and your progress work fully offline. Only the AI features need a connection.
Do you show ads or sell my data?
No. QED has no ads, no account, and no tracking. Your progress stays on your device.
How do I restore my purchases on a new device?
Open Settings, then tap Restore Purchases.
How do I reset my progress?
Open Settings, then About, then Reset Progress.
Still need help?
Email pradeep.aneesh@gmail.com and include your device model and iOS version so we can help faster.