I have seen a similar mechanic in a game called [1] "Smash Hit". The free version would basically just disable saving. Once you paid a few dollars for the premi

I have seen a similar mechanic in a game called [1] "Smash Hit". The free version would basically just disable saving. Once you paid a few dollars for the premium version, you could save your progress. I liked the model. Having streaks might stress-out and frustrate the users... [1] https://play.google.com/store/apps/details?id=com.mediocre.smashhit https://play.google.com/store/apps/details?id=com.mediocre.s...