Do you need to buy on both Steam and itch to get a Steam key and Android build?
If you purchase the game on Itch and then post here to let me know, I can provide you with a key for Steam.
I can look up the sale history and confirm the purchase, then send the key to the email address tied to your itch account.
*Steam keys usually take a day or so to request from Steam, so there will be a slight delay between those two things happening.
Just saw your reply. Took me only 60 seconds to buy after that.