There is no official Android APK for Treasure Hunter Claire . The game, developed by Acerola and published by Kagura Games, was released exclusively for Windows PC. Availability Report
Safe APKs are unsigned copies of the official release. Dangerous ones steal data or show endless ads. Here’s how to spot fakes: Treasure Hunter Claire Android Apk Download
Conclusion
Warning: Because there is no official Play Store listing, you will need to sideload the app. This means you are responsible for vetting the security of the file. There is no official Android APK for Treasure