@JeremyCherfas The app just came out, and no, I don’t use it. I have a subscription allergy. 😂
The book is ~$13 new from Amazon in my region. It has good tips and sets good expectations around sound production and identification, how to build cards that are effective, the importance of building your own cards, avoiding confounding (“let’s learn all the fruits” => now you tend to mix them all up), etc. That plus AJATT/SimpleMoon greatly influenced my approach to language learning.
/@jws