Maybe this depends on the person, but I find a device with some buttons to configure it infinitely easier and less frustrating than an app.
An app to my brain screams "depends on your phone and will be outdated at some point; requires picking and unlocking your phone to use it; will have updates that change/ruin it at some point".
I just want to feel a button and press it, especially for things supposed to be used in the dark while sleeping.
> Maybe this depends on the person, but I find a device with some buttons to configure it infinitely easier and less frustrating than an app.
People's subjective experience may vary, but relying on an app objectively entails more complexity and risk exposure for the user than exposing on-device configuration.
It's quite possible that many people who say they prefer using apps do indeed experience a higher level of frustration over the full span of their usage, and are only expressing their immediate-term evaluation at the outset of usage.