Some warnings 20 users report an aggressive ad load; 6 users report the basics being behind a paywall and 1 more report. Nothing confirmed. Checked: 500 reviews and the store listing.
From our automated analysis, 27 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 4.0.1 of the app, analyzed 2026-10-27 .
The store currently lists version 4.0.1, updated 2026-09-17.
Store screenshots supplied by the developer.
Download your entire Fitbit history and store it on your iPhone in Apple Health with myFitnessSync. Auto-sync new data in the background multiple times a day. Own your data!
Works with ALL Fitbit models and the Aria scale.
myFitnessSync - Fitbit to Apple Health exports up to 31 fields. You can choose which fields to sync:
* Steps
* Weight
* Workouts
- Functional Strength Training;
- Traditional Strength Training;
- Yoga
- Cycling
- Mountain Bike
- Aerobics
- Run
- Hiking
- Walk
- Elliptical
- Swimming
* Resting Heart Rate
* Walking + Running Distance
* Active Energy
* Resting Energy
* Dietary Energy (Food Calories)
* Sleep Analysis & Sleep Stages
- Time In Bed
- Time Asleep
- REM
- Deep
- Light
- Wake
* Body Fat Percentage
* Body Mass Index (BMI)
* Lean Body Mass
* Flights Climbed
* Water / Hydration…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Open observations that have not cleared the evidence bar.
Aggressive ad load: raised by 20 distinct reviewers (about 1 in 25 reviews we read)
This observation has not cleared the required evidence standard.
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
Misleading advertising: raised by 5 distinct reviewers (about 1 in 100 reviews we read)
This observation has not cleared the required evidence standard.
Reviewers repeatedly report that the app is not what its advertising showed. We never see the ad creative itself, so nothing we collect can corroborate or refute this — it is published as an attributed user report: what reviewers say, and how many of them said it.
Paywall blocks the basics: raised by 6 distinct reviewers (about 1 in 83 reviews we read)
This observation has not cleared the required evidence standard.
The core of the app — not extras — sits behind payment, or previously-free function moved behind a paywall.
Nothing was published as a thing to watch for in this assessment. That is not a finding that nothing is wrong with the app.
500 reviews read for this analysis. Each observation keeps the sample and store it was based on.
Impossible to use — Only tracks your steps unless you’re willing to pay and literally every interaction on the free part of the app is filled with pop up ads
UI is one pop up after another — Awful UI, tons of adds, not intuitive. Ended up with SyncFit. Was much easier to setup, had a professional UI and did not bombard me with ads.
Free version is full screen ads — I couldn’t even get past the ads to do anything. It would take me to log into my FitBit account, then right back to a full screen ad. I had tried it before and couldn’t remember why I didn’t keep it…
Great App until… — Great app when I was using the free version. Upgraded to a lifetime membership and now all it does is crash. Way to bait and switch. I want a refund.
$50? Thanks but no thanks — Bait and switch
The app equivalent of junk mail — This app is just clickbait ad after clickbait ad, you can’t tell what buttons are for the app and which are just ads. Hopefully this was just a waste of time and not a dangerous breach of privacy, but the…
Free version is useless — Only manually syncs steps
Have to Pay For EVERYTHING — Absolutely BLOWS only thing that is free is steps whereas PowerSync does at least half of them for free
Requires Subscription — All features described are locked behind a subscription pay wall other than manually syncing your steps
A sampled review illustrates one person’s experience. It does not establish a finding on its own.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
This analysis describes version 4.0.1 of the app, analyzed 2026-10-27 .
The store currently lists version 4.0.1, updated 2026-09-17.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Fitbit to Apple Health now syncs through your Google account. Fitbit is retiring the service this app used to read your data. In this version you sign in with the Google account your Fitbit is connected to, and syncing continues from there. • Existing users: open the app and tap Login with Google once. Your fields, settings, and sync history carry over; nothing needs to be set up again. • Steps, distance, floors, water, active and dietary energy, weight, body fat, resting heart rate, workouts, sleep, and sleep stages all sync as before. Sleep now includes stages on iOS 16 and later. • Auto-Sync and Sync Entire History work the same way on the new connection. If the app ever shows…
Shortened here; the full notes are on the store listing.
Appworthy
fitbit-to-apple-health-syncAssessed 2026-10-27 from 500 user reviews and the store listing. We have not scanned the app's package, so nothing on this page was read from inside the app itself.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
This assessment is produced automatically. Two independent signals are read — user reviews and the store listing — and each candidate finding is filed under the sources that support it.
No charge stands on one kind of evidence — with one published exception. A finding is either a measured fact that anyone can reproduce (an ad SDK is in the package; every subscription bills weekly; the privacy label omits a tracker we can see), or it is an interpretation — and an interpretation needs independent sources to agree before it reaches the catch list. The exception is a harm only users can see: a charge may publish from reviews alone, as “Reported by N users”, once enough reviewers raise it to clear that charge’s own published bar. That agreement rule is what replaced the human reviewer, not a model’s confidence.
There is no overall score, on purpose. A 0–99 number was published here until 2026-09-15. It was withdrawn because it discriminated too weakly to be the instrument — 44.7% of every pair of apps tied — and because a single number is a verdict where a count is an observation. What publishes instead is a row of measurements, each of which says what was counted and, where we could not look, says that instead.
Findings under One source only are real reports we do not stand behind as findings. They are shown because withholding them entirely would hide a genuine complaint, and labelled because publishing them as charges would be an accusation off a single source.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.