My own applications:

Medicine Notes

A personal iPhone and iPad medicine journal with intake records, reminders, supply tracking, and label photos.

Visual App Launcher

A visual macOS launcher that displays apps as icons, with search, Favorites, Continue for recently used apps, All Apps, custom sections, flexible organization, and hidden apps.

TranslationBooks

The app for reading books in foreign languages (learn foreign languages) and text-to-speech.

Simple Servers Monitor

The app for quick check of availability of servers and sites