Currency Calc has just been updated to version 1.3.7. However, after this update, some users encountered fatal problem when launching the app. The app will crash immediately.
After studying the logs from crash, this problem was led by an update of third party library to parse json data. This latest version library will fail to load when running on Android version lower than 8.0 (API level 26). Android version larger than 8.0 will not have this crashing problem.
Now that root cause of this problem has been identified, I just built another version of V1.3.7 and publish it to Google Play Store. After the publishing work by Google Play, you may download and upgrade to stable version of Currency Calc.
I feel deep sorry about this update and apologize for any inconvenience that may cause.
Next time the third party library update will be further considered more carefully to prevent such case happened again.
Thanks for your support and patience. Any other problems/questions, please drop me a mail: firstname.lastname@example.org .