It has functionality where you set up a food plan. You tell it your target weight, current weight, and pick the difficulty. Based on that, it tells you when you should reach your target and how many calories in deficit you need to be each day. You log what you eat and the caloric cost of that food, and it helps you see whether or not you are meeting your target.

Don't get me wrong, there are some downsides. The app can be a bit clunky and buggy on occasion. Some parts of it could be significantly improved. It also requires some dedication to your goals. There have been times where I accidentally ate a bit too much that day and have to go for a walk at 10pm at night.

The main benefit of it overall in my opinion is that it takes (most of) the guesswork out of getting to & maintaining your desired weight.