Review update.
Response from developer
Thank you for your feedback. I do care about the quality of all my apps. Actually, I have been using this app to train myself very often recently. Version 1.3 works perfectly on the last iOS 14.3. Have you tried to remove and reinstall the app? Sometimes it works. If not, could you please email more details about the problem and the device you are using to support@MyMusicPartner.net ? Trust me, we can solve this problem together. Thank you. Update: Awesome! So glad to hear that your problem has been solved and you love it. Thank you for your support!