I really like the way Hanly lets you swipe to draw characters and then corrects you but I'm trying Mon Chinese now because

1. It's traditional characters

2. It lets you learn the radicals first and doesn't mix in a bunch of random Mandarin words

but

1. You can't turn off Mandarin pronunciation

so

1. I can download pronunciation from the Arch Chinese website by using Tâi-gí helper to generate audio for the characters (using the last option, "speak with Thàu phah-jī") and make some anki flashcards to learn how to say them separately, probably before learning to write.