I found Noom to be quite helpful at first, it’s methods are very useful and I’ve lost like 60 pounds so far following them. I don’t like it’s app though, and once it started to not work on my phone I switched to MyFitnessPal. The noom methodology emphasises education and thoughtfulness, which once you learn what they are teaching you really can’t help but view things differently. Once you are armed with the knowledge, I think it’s fine to abandon noom for cheaper apps. Also, if you try and cancel their retention discounts are so good they may change your mind.