Help

■Where can I purchase these applications?

On Google Play for Android, and on the App Store for iOS.

■Is there any difference in the Android version and iOS version?

There is no difference in the content and functions, but there are some in the way the presentation is displayed.

■What OS should I use?

This application can be used with Android 7.0 and above, iOS 10.0 and above.
However, there are devices that are not supported.
If you encounter any problems or errors, please contact the user support.

■Can I buy this without a credit card?

Yes, you can also use prepaid cards.
For more information, please see on the store of your choice.

■The application can't add the in-app items I bought.

If the download or installation is incomplete, try uninstalling the whole application, end the currently working tasks, check if there is enough memory on your device, and then reinstall. After reinstalling, check the purchase history. You can download the content you purchased for free as many times as you want as long as you as the ID you are using is the same.

※How to check the purchase history : There is a “Check the purchase history” button at the top of the “Chapter Select” screen. Please tap the button when you are in a place with a good internet connection.
If the purchase is not complete, there is a possibility that the payment has not been made properly.
Please check whether the purchase/payment has been completed with the inquiry received from each mobile phone company you use or market/store.

■In case of application “force close” or freeze.

There are several causes that may lead to a “force close” or freeze of the active application:

1. Not enough memory
When there are other applications active at the same time, the memory will be running low and the application might freeze, even when the device's memory itself is sufficient. To solve this problem, you have to close the other active applications.

※When you close applications with the home button, they might still be active even if they are not being displayed. Force close the active applications, shut down your device and restart it.

Please check your device's manual on how to check active applications, how to force quit applications and how to restart the device.

2. Bad reception
This application may receive data during play.
At that time, if the reception is bad, an error may occur.
Please restart in a place with good reception.

■About re-downloading application or special contents.

You can re-download your purchased items.
Please try re-downloading with a device on the same market/store you purchased the item.
Note that you must log in with the same ID when you attempt to download, or you will be charged again if you re-download with another ID.

※Even if you change your device, you can redownload it for free as long as it is the same ID.
※At the time of redownload, the billing guide might appear, but there will be a message such as "Purchased and can be downloaded for free" at the time of purchase. When downloading with the same ID, if the actual billing appears, please contact the market/store you used.
※Redownload is only available for "non-consumption items" (items that can be used semi-permanently when you purchase them once). You can't redownload "consumption items" which will disappear when you use it within the application.
※Even if it's the same application, it's different in different OS. The ID used to download is also different so you can't redownload between Android - iOS.

■What should I do when a problem can’t be resolved?

If a problem cannot be resolved with the solutions found on the “Help” page, please contact us using "Support Mail".

Support Mail：if-app@ideaf.co.jp