I mean, just take your example. Counting calories for everything you eat is a significant amount of work, and it's really easy to cheat if you're feeling hungry ("Oh, look, my app says that an 'average' blueberry muffin is only 250 cals, so that's what I'll put in, despite this muffin being the size of my head").
With IF, all you have to think about is whether you're in your feeding window. You can still cheat, but there is no ambiguity about it, so for many people (or, fine, at least for me) it's easier to keep with it. I found myself getting super hungry during my fasting period, but I knew I just had to wait until my feeding period, and I actually found it difficult to overeat during my feeding period because I would just eat until I was full and then would "run out of time" to overeat.
Some hungers turn out not to be that urgent.
There's a different hunger for an empty stomach and for a suddenly drop in blood sugar, etc.
I mean different body signals tell you that you are hungry and you learn to introspect them a bit.
I had quite a bit of fun trying to get to biochemical/physiological/phycological understanding of the triggers/sensations.
The one I could never quite crack is a craving to chew when I could tell my stomach was full and I was satiated otherwise.
I also track protein to make sure I get at least 170g, so that's an additional benefit.
170g of protein is only 680 cals, so plenty of room left over for carbs and fat.
I personally find it psychologically much easier to not eat at all for now (knowing I'll feast in a while) than to exert the effort of eating less when I'm eating now.
You do not need any apps, you do not need to count calories and you do not need remove food you love from the menu.
And while it may sound that you would try to overcompensate for not eating during specific timeframes, what happens in reality is that your body responds by wanting less food, not more.
It has become such an annoying nag though. If they offered a reasonable one-time payment -- not even for premium features, just to make it stop nagging -- I'd pay it. But no, they want me to subscribe. No thanks.
If IF worked for you that's great, but you shouldn't imply every other diet doesn't work. In my case all I did was track calories of everything I ate (Lose It app, highly recommended) while maintaining a normal eating schedule. Down 105lbs so far. For me I feel like if I just ate whatever I wanted in specific timeframes it'd still be too easy to eat 3000-4000 calories.