Clock

There is no repeat button for timers. You have to restart them manually. This means if it's on long then your phone is awake, you have to unlock your phone to set it again. Terrible for physical or creative exercises. Similarly, there is no vibrate only mode for timers. It will always make a noise. Tone cues are too distracting in the quiet and in a louder environment, overstimulating in addition to the vibration. Edit: my complaint is about timers in the app, not the alarms link in the link.

The fact that you can no longer change your ringtone, only each individual alarm clock, is stupid. Who thought it was a good idea to remove that feature? That was the most unnecessary update you could make, bring it back or I use a different app, and maybe there are a few more ringtones to choose from; there aren't many, and they're not really the best.

Has nothing on Samsung Clock. No way to reorder alarms, such a basic feature. Cannot turn off alarm for today, or turn alarm back on next schedule. No settings for configuring snooze per alarm. Setting alarm time requires keyboard input - terrible UI - keyboards are slow to use and take up too much screen space, a simple scroller would suffice.