Not every service, not every software lends itself to the subscription system. E.g. if you sell an obscure format converter that I need once every year (but th

Not every service, not every software lends itself to the subscription system. E.g. if you sell an obscure format converter that I need once every year (but then I really need it) it should not be an subscription. I would gladly toss 20 Euros at the developer for something like this once. What I will not do is do any subscription, just because it takes up space in my mind perpetually.