Fixed an error in the privacy policy URL.

Changed support URL.

Changed the EU General Data Protection Regulation(GDPR) compatible library from Google Mobile Ads Content SDK to User Messaging Platform SDK.

Fixed a bug where the tracking permission dialog for IDFA（Identifier for Advertisers) was not displayed.

Updated Google Mobile SDK.

-Supported IOS 14 IDFA (Identifier for Advertising).
-Changed to display Interstitial Ad when saving files

This update from Apple will improve the functionality of this app. No new features are included.

supported General Data Protection Regulation (GDPR).

Improved application stability.
Adjusted the layout for iPhone X.

Updated advertisement SDK.

Updated advertisement SDK.

-Fixed a bug.
-The advertisement SDK has been updated.

ver 1.4.0
-Supported iOS 10.0.

Fixed an error in the ad implementation.

Change the ad from iAd to AdMob.

Fixed a bug that can not press the "Restore" button in the "Remove Ads"

ver 1.3.3
-Added Interstitial Ad.

Fixed a bug that English help is displayed when the language setting is Japanese in iOS 9.

ver 1.3.1
-Supported iOS8.

-Fixed a bug related to the zoom operation.
-Fixed other bugs.

-Added the editing function of layout.

-Added a function making it is possible to control train speed,start, stop and back.
-Modified to be able to hide Ads by In-App Purchase.