There is another model featuring 4 levels, that I find interesting: 1 month, 6 months, 12 months AND life-time. We saw that some apps are starting to adopt that

There is another model featuring 4 levels, that I find interesting: 1 month, 6 months, 12 months AND life-time. We saw that some apps are starting to adopt that model and were thinking doing the same. Even though the life-time price is on a different level, this 4th option might cater to a specific group of people that don't like subscriptions.