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By popular demand, now you can sync all your data from Apple Health to Fitbit.
*** Important *** Fitbit has decided to not allow steps from third-party apps to count towards challenges. If you want to log steps from your iPhone and participate in challenges, we recommend using Mobile Track.

Data types supported:
- Steps
- Weight
- Body Fat Percentage
- Sleep Analysis
- Water

- Data granularity on steps is limited to once per hour due to Fitbit API limitations.

What’s New

Version 2.5

Performance improvements

Ratings and Reviews

3.5 out of 5
452 Ratings

452 Ratings

aagg03 ,

No Steps/Sleep in Fitbit

This is straight from a lengthy chat with Fitbit Support. They were nice enough, but were very clear that you will NOT see Steps data unless you buy one of their device or use your iPhone as your only tracker writing data directly into Health (inadvisable if you’re swimming or don’t want to live/sleep with your phone on your body). Even though Fitbit’s Exercise tile shows it’s getting duration and distance data from Health, and using that to calculate calories burned — and although you give Fitbit your walking/running stride measurements during setup — they say it will still NEVER use that data to calculate Steps. The same seems to go for Sleep, even if you approve all the correct read/write Privacy Settings for these types of data — without a Fitbit device, you CANNOT include those stats in your tiles/Dashboard. Fitbit will function merely as a weight loss, food, water, calories consumed/burned tracker ... not fitness/activity nor sleep, which is what I care about. I see this more a defect in their app and not Sync Solver, which appears to be doing what it should, but still I wasted $3 on this app. For me, it’s back to Jawbone’s purple-icon UP app ... tedious and limited after years of use, but the only one I’ve found that reads/charts my Steps/Sleep (as well as Weight) data to/from Health accurately most days without undue fuss, setup or other apps (like this one).

JesseT ,

Sort of works but doesn’t sync automatically. Step counts totally wrong

Despite what the app claims, it does not sync to Fitbit automatically. You have to manually sync it.

Update: the step counts transferred to Fitbit are wildly inaccurate. In a day where I have 5,000 steps worth of activity, only 1200 steps would sync to the Fitbit. This may be due to me having both an Apple Watch and motion tracking on the phone, but regardless of the limitations the app has to deal with, it doesn’t do the things it claims to well enough to justify using it. The fact of the matter is that with the way things are between Apple and Fitbit at the moment, you have to pick one or the other. This app is a bandaid at best and comes with sufficient compromises that it is not worth using, despite the admirable efforts by the developer

googull ,

Should be free

This sync app should be free because it is so limited. Sure, this is an outcome of the fit bit policy but unless you read all these reviews carefully you are likely to be disappointed with the app at large. Your steps will not be counted as steps in fit bit. Rather, they will be counted as activity. Stair flights are not synchronized. Sleep details are limited. And worst of all because of limitations in the number of uploads allowed by fit bit per hour you are going to be hugely disappointed if you thought you were going to synchronize more than a few days of data. The app offers to synchronize back years but doesn’t bother to tell you that you will likely destroy your screen with screen burn waiting the 70 hours it may take to complete. It isn’t until you get into the support details that you discover all of these limitations imposed by the fit bit website. By contrast the other rap that synchronizes fit bit data to the Apple health app is phenomenal and highly recommended.


James McAndrew
19 MB
Health & Fitness

Requires iOS 9.0 or later. Compatible with iPhone and iPod touch.



Age Rating
Rated 4+
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