Version: iOS 2.0.9(30)
Settings -> App Version in Japanese translation says "アプリ版" which reads as "App [ported] version" in same sense as "version" in "desktop version", where the intent here is "version number". Correct expression for "application version number" is "バージョン番号". This is a minor error that do NOT require an immediate action. To prevent these types of error in the future, I would recommend attaching screenshots when outsourcing translations.