IQ Rank Support
Last updated: September 26, 2026
1. Contact Us
For questions about IQ Rank (the "App"), or to report a problem, please write to
support@mainichi-apps.win
A reply may take a few days. When reporting a problem, it helps if you can include:
- Your device (for example, iPhone 15 / Android)
- The app version (if the settings screen shows one)
- Which screen you were on, and what you did when it happened
2. How to Use the App
- Start by choosing a nickname. There is no account registration and no email address.
- The IQ Test has 20 questions. The questions change every time, and your best score appears in the rankings.
- The Daily Puzzle gives everyone the same 5 questions. You can try it once a day.
- Exchange invite codes on the Friends screen to see each other's ranks.
- To erase your records, open “About this app”, tap “Delete all records”, then choose “Delete”.
3. Frequently Asked Questions
- Is what I record sent anywhere?
- There is no account and no sign-in. For rankings, your nickname, scores and similar results are sent to our server and shown to other users. See the Privacy Policy for details.
- How do I delete everything?
- In the App, “About this app” → “Delete all records” erases both what is on our server (nickname, scores, friends) and what is on your device. Deleting the App alone leaves the server records in place, so please do this first. If you cannot, contact us at the address below. This cannot be undone.
- Can I move my records to a new phone?
- Not at the moment. On a new device you start again as a new player. To remove the old device's records from the rankings, tap “Delete all records” under “About this app” before you switch.
- Does it work offline?
- Partly. The IQ Test and Daily Puzzle work offline; rankings and friends need a connection.
- Are there ads or in-app purchases?
- No.
- Is this an official IQ score?
- No. It is an entertainment estimate, not a medical or psychological intelligence test.
- What appears in the rankings?
- Your nickname, best IQ score, strongest area, and your Daily Puzzle result and time.
- How do I remove myself from the rankings?
- Open “About this app” and tap “Delete all records”.
4. If Something Goes Wrong
- Close the App completely and open it again.
- If that does not help, restart your device.
- Check the App Store / Google Play for an update.
- If it still happens, email support@mainichi-apps.win with the three details listed above.
Reinstalling the App can fix some problems, but it also erases your records. Please treat it as a last resort.
5. Related Pages