Your requirements are pretty strict

Ha, I honestly thought I was being pretty lenient with just requiring what I thought were, more or less, the base requirements for a pill tracking app.

Didn’t get the encryption point

If I understand you correctly that you mean that you don't understand the point of encrypting the data, the reason why I want that is to protect unauthorized access to the data if the device becomes compromised.

MedTimer

I've been using this one for a bit, and it does the job pretty well. It definitely is lacking polish and is somewhat buggy, but it's certainly usable.

MediTrak

I found this one's UI was rather cumbersome. I would choose MedTimer over it.

Home MedKit

I hadn't heard of this one! It looks well made. It's a shame one cannot input entries on any day though. I'm a little wary of a Russian app whose development history I cannot read, especially given that it's such a small app in terms of popularity, but it seems genuine. The development cadence is perhaps a little lacking.