LoyaltyLion: Rewards & Loyalty

Just a great app, so easy to use and very straightforward. Free plan is generous and means they have a customer for life here. Works great if you have a lot of return customers. Only downside is that you can't exclude more than one product category from earning points. If there was more control there, this would be the perfect product.

UPDATE! - just got an email from customer services who explained how I could do the one thing that I thought I couldn't in the review above. Just awesome guys, thank you so much - Loyalty Lion is now perfect!