I am very satisfied with my subscription to Sumo App. The products offered are helping me a lot to design, improve my activity of teaching Italian language online. The discounts applied are interesting and the customer support is excellent. The fact that I can test the various apps and, if necessary, request a full refund is one of the aspects that convinced me to make this subscription. I bought many apps and over time I decided which one to keep and which one to return. I recommend this platform to everyone.