GUMPAI Support

Updated: October 4, 2026.

Contact us

For bugs, questions, data deletion or reports of inappropriate player names, email satoki252595+voicewright@gmail.com. Include “GUMPAI” in the subject. We share this existing public support address with our other apps.

Getting started

Try the Guide to learn unit policies and battle commands. In the campaign, scout the battlefield, build your army and place your units before marching out. Battles use landscape orientation. Army preparation and settings also work in portrait orientation. You can choose English or Japanese in Settings.

No sound or vibration

Check master volume, sound effects, music and haptics in Settings. Turn off “Play in Silent Mode” to respect your iPhone’s Silent Mode setting. In a browser, audio starts after your first tap. Vibration may be unavailable on some devices.

Slow performance

Change graphics to “Standard” or “Battery saver” in Settings. Turn on “Reduce motion” to reduce screen shake and flashes.

Connection problems

Check your connection and your device’s date and time. Ghost battles and online rankings require a connection. The campaign and Daily battle can be played offline; posting a daily result requires a connection. If a result is waiting to upload, open Online again after reconnecting to retry. If the game reports that your version is outdated, update the app or browser version.

Saving progress and changing devices

Campaign progress and commanders are stored on your device. Progress transfer between devices is not supported. Uninstalling the app, clearing browser data or erasing your records in Settings may remove your progress. If you see a save warning, check free storage and your browser’s storage settings.

Delete your online profile

While connected, open Settings → Online → Delete profile and wait for confirmation. Retry the same action if it fails. This deletes your anonymous registration, defense plan, online match history, rankings data and pending results. Your campaign progress and commanders remain on your device. Uninstalling the app alone does not delete the server registration. See the Privacy Policy for details.

Reporting a bug

Include the app version, device model and operating system, the screen you were using, the action that caused the problem and whether it happens every time. Hide notifications, real names, email addresses and other personal information in screenshots. Never send authentication secrets, Apple Account passwords or your device passcode.

Reporting inappropriate names or results

Threats, discrimination, sexual content, personal information, names that impersonate the operator and fraudulent match results are prohibited. Report the player name, screen, ranking type and position, and the date and time you saw it. Include the public player ID if you know it. We review reports and restrict publication or online access when necessary. You do not need to send authentication secrets.