Thats's a good idea! I think I will add a smaller plan later. Please check back soon (might take a few days, looks like I have lots of bugs to squash)! The prices are more or less a direct reflection of the potential fees so it should totally possible to do a small plan.

BTW I should also mention that if you don't pay after the trial, it never actually locks you out. I haven't coded that part yet and it I feel bad about charging for buggy software so it's more of a donation at the moment. So feel free to use it for free and contribute if you like it later on.