ShopHub: Loyalty Stamp Card

We've been using this for quite some time and it's a great app with wonderful customer service. But it just changed from free to paid and the prices are high. We like it so much we're trying to see what we can do to continue using it (and the developers are kindly working with us on that), but it's definitely a huge challenge to go from free and works great to facing hundreds of dollars a year to get to use.