Any good idle games for mobile? Preferably, free?

Criteria: downloadable for my phone, fun, not at all stressful and non-timed (like where you can't lose or get any penalty for lose conditions), and time-consuming

Any bonus points: anything that interests my hobbies like plants and/or breeding them/genetics to make cooler and better ones, and peaceful and charming.

Please, I'm so bored and looking for a good idle game...

I really appreciate your time.