I've been using the MFP full website since March 2013 and still love it. I tried the app for a few days at one point and hated it! I'm weird about apps though, if they show any glitches or buggy stuff, I'm out.

I haven't gotten into fitness tech/wearables.

I use Fitbit and Garmin Connect.

Fitbit charge HR....don't leave home without it. The heart rate monitor makes all the difference! I can't believe I got this far without it (just picked my charge Hr up in June, before that I had a regular fitbit for 2 years). I honestly couldn't believe how "off" MFP was in calorie counts.

Wireless headphones...how did I ever work out without them? Not a super-tech-y gadget but wow, did they make my life/workouts easier. And while I'm on the subject of non-tech-items...if you're a runner or otherwise outdoors-workout-person...polarized sunglasses. Wow. I know, 1st world problems, but both of these really made my workouts so much better. And on the safety front...a reflective vest (with zip pockets) and glow in the dark duct tape (I run a strip down the back of each leg and arm if its early or late). I feel so much safer in the morning/evening. I also have a blindly light thing but it's kinda cumbersome. But I'd rather be alive and slightly inconvenienced then but by a car.

Apps...i find the MFP app really glitchy. I've heard there are others out there, but haven't tried them. I like MapMyRun, but it doesn't sync right with my Fitbit, so I use Fitbit to track my runs. Works pretty well. Track my weight daily through happy scale (and I do know the pros and cons of daily weighing! It's better for me if I weigh daily because I can monitor my body's trends based on sleep, diet, etc.)