How to charge for your mini app

1. Focus on getting people to use it

2. Then focus on getting people to add it

3. Send them notifications

4. If you can get them to come back 3x and do your primary thing, consider upselling 

5. Most basic version of payment: become a supporter

6. Other ideas: more content / features, mint collectibles, early access, group chat access for power users

Love this framework.I like the idea of using repeat engagement as a trigger for monetization. 'Supporter' as the base model keeps it simple, and the layered  options give chance to grow without overwhelming new users.