Monster Cart Upsell+ Free Gift

The Monster Cart app has received a mix of positive and negative reviews from users. Positive aspects include helpful customer support, quick responses, and effective upsell features that have increased average order value for many users. Users appreciate the app's functionality for managing upsells, free gifts, and cart discount thresholds. The team behind the app is praised for being responsive, constantly upgrading the app, and implementing user ideas. However, negative reviews mention issues such as bugs, glitches, slow response times, and limitations in functionality like the inability to support true tiered upsells. Some users experienced significant problems with the app affecting their cart, leading to lost sales and frustration with the support provided.