Supports iPad's compact window. I am sorry for the inconvenience.

Build in the latest environment

Organizing the internal structure

Bug Fixes App size reduction

Changed the process of restoring in-app purchase items Reduced app size

Fix In-App Purchase process

Rebuilt from scratch. The internal billing process has been updated. The iPad's split-screen function is now supported. If you have any problems, please let me know, samekard in X.

The Other Apps page has been brought up to date with the new apps. iOS 15.5 or higher.

Suspended dark mode support

Fixed a bug when closing the screen connecting to the App Store. iOS10.3 or higher.

Fixed a bug on in-app purchase. Add recently launched apps to Other Apps.

Fixed the movement of a star on creating a problem for two cars. Added a slightly flashy effect when you calculate one value from two values on the problem creation page.

Added explanation to 'Customize Animation' on the in-app billing page. What's New in 3.2.0 For new devices. Added a function with which you can customize animation.

For new devices. Added a function with which you can customize animation.

Added notice that some functions are going to shift to in-app purchases. The function of stopping animation every unit time and the function of choosing the number position of speed in animation will shift to in-app purchases.

added About This App page.

A minor change.

a few changes on design

A few changes on design.

Minor change on pop-up rating dialog.

Minor change in in-app purchase page.

Changed Color of the Menu Button. Show the popup asking you to rate this app.

Changed the icon Renew In-App Purchases Page Fixed layout collapse on the creating a question page

the latest OS the new device

***** 3.0.2 ***** added the message in In-App Purchase page. "If you have purchased any items, please restore once before purchasing a new item." ***** 3.0.1 ***** bug fix in In-App Purchases. ***** 3.0.0 ***** The function of creating questions has been moved to in-app purchase, though it was available for free on the previous version. It includes an improvement point where units can be selected from km, m, hour, minute, and second. The new items have been added to the settings. You can stop car animation every hour. There are three patterns: keep running, stop and resume automatically, stop and restart by manual operation. Please use it when you want to suspend the animation and explain something to the learner. You can set whether to display the speed figures according to the movement of the car or fixed. Discontinued creating questions in driver style on iPad. I will resurrect it if I can. Other Adjust to the screen size of each device except iPad Pro 10.5 inch. Design slightly changed. There are two images on the screen that are of famous landmarks of various places in Japan. Shown images are changed for every several questions. When creating a question, you can select units from km, m, hour, minute, and second. With this update, the following three settings will be lost km or mile Speed of car animation How to create a question on iPad Please set again when necessary.