Macrofactor for calorie tracking. It does an amazing job of calculating your TDEE based on your caloric intake and weight.
For tracking weights, I use Fitnotes. No particular reason, really. I tried a bunch of apps and felt like I had some issue with all of them. I ended up settling on Fitnotes.
Second for Fitnotes. It's simple, customizable, and stable. Plus it can automatically create backups as well as export your data to csv if/whenever you need.
Nike Run Club for runs. It usually works well with my Apple Watch (lately there’s a weird battery issue though). It then syncs the info to my phone, so I can see stuff like cadence, elevation, heart rate, pace, distance, etc.
Apple fitness for everything else really. The yoga, strength, hiit, etc classes are easy to access, and nicely varied. Plus I can do it all without having to step foot in a gym. Huge bonus to me.
MyFitnessPal for tracking calories. I tried LoseIt when MFP took away the barcode scan tool, but came back because I like the UI much better.
The MyFitnessPal was useful for tracking calories when I did that in the past. If I remember right it had a lot of stuff already entered so you could just search and select rather than manual data entry all the time. Also useful for tracking and planning macros.
Now days I'm mostly just concerned about getting enough protein and don't really worry about much else.
If you know the exact name of something, you can use the MFP search, and it usually comes back with a handful of matching items. It used to be that you could use your camera to scan the barcode on the packaging, and it would populate all the info. They unfortunately made that a "premium" feature, which I get, but is really annoying.
I'm a boredom eater, so I HAVE to track, or I'll find a way to eat like 3k calories a day. Not because I'm actually in need of the calories, mind you.
These are the apps I'm using:
edit: actually now found RunnerUp which seems like an awesome running app for android and is open source so giving that a go.