Support

Questions, bug reports, and feature requests for KURAUDOU

Contact

For bug reports, feature requests, or any other inquiry, please email us at the address below. Replies may take a few days.

What to include in your message

For bug reports, the following details help us investigate quickly:

• OS (iOS or Android) and version
• Device model
• App version
• What happened, and the steps to reproduce
• Screenshots, if possible

FAQ

Q. Which services are available in the free tier?

USER, CloudFront, ELB, EC2, RDS, and S3 — six services. Together they cover the typical 3-tier architecture pattern.

Q. How many resources can I place in the free tier?

Up to 5 resources total. Upgrading to Pro removes this limit.

Q. I bought Pro but it isn't applied

Tap "Restore Purchases" on the purchase screen. If that doesn't help, make sure the store account you're signed into matches the one used for the purchase, then contact us.

Q. Can I use Pro on multiple devices?

Yes — on devices signed into the same Apple ID or Google account, "Restore Purchases" enables Pro.

Q. How do I save a topology?

Use the "Save" button on the toolbar to save the current design into one of 5 named slots. Use "Load" to bring it back later.

Q. What's the difference between Easy and Real mode?

Easy mode shows concise Japanese logs aimed at beginners. Real mode shows detailed English technical logs with hints always visible — better for practitioners. Toggle from the top toolbar.

Q. How do I remove ads?

Upgrade to Pro to remove all advertisements.

Q. Can I change the app language?

The App auto-follows your device language. Japanese and English are supported. Change your device language from your device's settings.

Q. Is there a backup or cloud sync?

Saved topologies live in local storage on your device. Cloud sync is not currently available, and uninstalling the App will remove your data.