Best Medicinal Plant App for Android???

I have found, and even paid for, multiple pathetic Medicinal Apps for my android.

They are all limited to only a few common medicinal plants.
or
They do not cover Botanical names or explain what parts of the plants use.
why is this so hard?

I want an app deep enough to cover advanced Medicals like,
Bergamot, Toothache plant, bishops cap, Sheppard's Pipe, Bee balm,
Milk thistle, soap wart ect ect..

perhaps with some constituent recipes thrown in?

Do you guys know of any?

Hey, Jerry, welcome to Permies!

I don't know the answer to your question (not an Android user) but I'm bumping this up to the top so maybe somebody with some suggestions will have another chance to see it and reply.