Essentially the difference is people sometimes complained of losing a lot of data because no cloud backups and no iOS version hence i'm doing web+android+ios. Also a lot of people wanted to be able to track doing habits multiple times per day or track some specific metric (30x pushups) which I've chosen to implement. Small things like that but they add up.
Knowing quantitatively that I'm improving in a certain area is a huge motivator (as is knowing that I've stalled).
In the past, when I forget to exercise for a few days I would get down and think that exercising was to changing, time consuming, etc.
Now, I can see that those periods of inactivity are just small dips in an overall positive trend of exercising more.
https://www.instagram.com/p/BlOsJsDFgCd/
So, in this case, over the course of 5 weeks I built up a habit strength of 4x weekly exercise by watching this graph move up and trying to keep my streak. Basically, the app puts hard data behind your daily commitments and helps you see -- quickly -- when you are failing. And ack'ing the success/failure of a commitment is just a single checkbox on a single screen, and it can remind you (with notifications) daily.
I didn't even know about the statistics, as I just wanted a way to check yes or no and see the past week to see if I needed to change things from week to week. Knowing I can see the trends changes everything... I think I'm going to need to add a few more things to this because this could be extremely helpful for me with several things. It was helpful enough just seeing week to week at a glance, but being able to see trends and long-term progress is great.
It can back up its DB to Dropbox, which I've used in a few small automation projects
https://github.com/iSoron/uhabits
Simple interface where you set your "habits" and how frequently per week you expect to do them. (E.g. exercise 4x per week, eat healthy 6x per week). Then you simply check off each day whether it happened. The analytics makes it clear if you are doing the right thing. Really good.