Bell Tower - Know the Time

Mostly wonderful. On my Samsung Note 4 it worked perfectly. My wife Samsung S7 Edge, it was on time maybe 25% of the time, about 40% it was 4 minutes late, and about 20% it was 3 minutes late, and occasionally 2 or 1 minute late. We could find nothing to fix it. In October we bought a pair of Samsung A50s. This app ran correctly on hers for two months, but it behaved on mine very much as it had on her S7 Edge, even though we have mostly the same as and settings. Now hers behaves like mine.

Great app. Occasionally it chimes a few minutes late but most of the time it's on time on my device. I can't get it to work with the system sounds though, having installed my own bell sounds from a real clock tower as system sounds. Do these files need to be in a specific format or not exceed a specific length to work in the app?

Very nice app but stops completely after a few hours. Normally works again after I put it off for few minutes en then on again, but stops again after a while. Need some serious fixing here. Did the update, but still problems after a few days. I need to put off and then on again to enable it. The app was always dissabled to battery optimisation.