I’ve seen a system just like this one you described in another app for learning Quranic Arabic called “Quranic”. Maybe a similar feature could be added in the future? It would be like the start up Arabic test but for words you need to review
It’s been debated a lot whether to give more review time especially when you have words that say “next review date: 453 days”, and people asked about this type of style before, inshallah developers consider it, may Allah bless them for their work