Highly subjective recommendations by bubbleHacks
BDK, Natively, or Codeless Academy. BDK is the most widely used service in the Bubble ecosystem.
If you don’t have prior coding experience, I don’t recommend using jasonelle. The Bubble forum is littered with people getting stuck in the setup or having bugs.
Progressier is currently the best solution out there.
Apple developer account: USD 99 / year
Google developer account: USD 25 one time
Bubble subscription: USD 29 / month