What were your issues with the standard Anki app? It might not be the prettiest app, but it is effective.
It would be easier if the features were reduced & the app kept minimal. Think the apple notes app & Google keep, but for space repetition. Anki feels like Microsoft Word.
Also a sample collection of decks with something to start learning right away (just to understand how the app works) would help me alot. Maybe a language, math theorems, APL verbs etc.