Revenue model suggestion


We are developing a flutter based app for IOS and Android for a Niche Category. It is a calculator and convertor which is specific to the Jewellery Industry. I wanted to understand what is the preferred revenue generation model one should go with

  • Freemium where free version contains ads
  • Subscriptions based model ( Monthly or Yearly)
  • Paid App i.e. direct one time purchase

Also, considering the Fortnite app store saga is it advisable to collect subscription payment outside the App store and Play store system ?

Trending on Indie Hackers
Looking for your next business idea? 💡 I just launched Daily Domain Ideas on Product Hunt! 🎉 23 comments 10 Free Illustration resources for indie hackers. 11 comments One of the best guides that I come across for SEO 11 comments Dev of 1 built a $4.2M ARR dealership system. AMA. 9 comments How Stripe operates like a civilization 7 comments Page 404. Why do we give a F$%k about details in design of our products? 5 comments