Let's be truthful. Not being able to change the temp is a really big deal. I have dumb vaporizer. I change the temperature every 10 minutes. Start out low, work up to higher temps. And, sure, the people who already downloaded the app are fine, but what about someone who is right now purchasing a Firefly and doesn't know that Apple banned these apps? What does this do for future sales of those products? Apple has effectively killed this product with this decision and have likely put a lot of people out of work.