[anonymoushn]

> we allow people to cancel anytime and have refunded everyone that has forgotten to cancel

Probably not, because your users are people who will forget to cancel and then forget to tell you about that.

> Some people also like having the subscription because it is a pay per use model

What does this mean? It sounds like users are complaining that if they download the app and don't use it it charges them $100.

> Would love any suggestions on how to improve this.

Howabout when the free trial ends, at that time the user has to approve a charge before continuing to use the app.