Comparison

Fitbit Sync to Health App vs Fitsynchronizer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fitbit Sync to Health App

Seamlessly transfer your health and fitness data from Fitbit devices to the Apple Health app. Automatically sync workouts, steps, heart rate, sleep patterns, and more with a modern interface and one-tap functionality.

Highlights
  • Sync Fitbit history to Apple Health
  • Automatic background data sync
  • Syncs all data fields
  • Workout log synchronization
  • Sleep analysis sync
  • One-tap sync feature
Features
Read full description

Download now and get access to a flawless sync experience from your Fitbit to Apple Health app! Key Features: - Sync for your history (Fitbit to Apple Health) - Automatically sync for your data - Background sync for your new data (You will automatically see your new data in Apple Health app) - Sync log - Customer support - Modern user interface - One tap sync feature Sync every fields from your Fitbit to Apple Health app - Workout log including walking, running, hiking, cycling, elliptical, stair climbing, strength training, circuit training, aerobics, yoga, ......... - Steps - Flights climbed - Active Calorie Burned - Basal Metabolism Rate (BMR) - Core Body Temperature - Body Weight - Body Fat Ratio - Lean Body Mass - Body Mass Index (BMI) - Sleep Analysis (awake, asleep, core, deep, rem) - Water Consumption - Resting Heart Rate - Breathing Rate - Spo2 - Dietary Energy - Dietary Protein - Dietary Carbohydrates - Dietary Fat - Dietary Sodium **HOW DOES IT WORK?** 1. Log in to the app. 2. Select the fields you want to sync from Fitbit to the Apple Health app. 3. Whether you want to sync your entire history from Fitbit or keep your data always synced between Fitbit and the Apple Health app, the app will take care of the rest. **HOW LONG DOES IT TAKE?** - For your historical data, most users complete the sync from Fitbit to Apple Health with just one tap. If you have a lot of old data, the app will sync it in the background, which will not take more than one day. - For your new data, the app will keep it automatically synced between Fitbit and the Apple Health app. If you have any issue, please contact us. You will get replied within 1 business day. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.zamalabs.com/fitbit-to-apple-health-sync-privacy-policy Fitbit is/are registered trademark(s) or trademark(s) of Fitbit LLC and/or its affiliates in the United States and other countries.. This product is not a Fitbit product, and Fitbit does not service or warrant the functionality of this product

About

Fitsynchronizer

Effortlessly transfer your Fitbit data to the Health app with a single click. Sync past data over a specified period, including weight, body fat, steps, distance, and calories. This app helps consolidate your health metrics.

Highlights
  • Sync Fitbit data to Health app
  • Transfer weight and body composition
  • Synchronize step count and distance
  • Import historical data
  • Sync calories burned
Features
Read full description

Add your Fitbit data to the Health app with a simple click. For instance, if you have a Fitbit scale, your weight data will be synced in the Health app in one click. FitSynchronizer also allows you to synchronize data over a defined period, in order to sync your previous data. The app contains ads. FitSynchronizer managed data: - Weight - Body fat index - Body mass index - Step number - Number of floors - Distance (walking and running) - Calories while in activity - Calories while resting

Screenshots

Fitbit Sync to Health App4 screens
Fitsynchronizer3 screens

Verdict

The call

The clearest difference is rating: Fitsynchronizer at 5.0 against Fitbit Sync to Health App's 4.1. Fitsynchronizer also leads on in-app purchases (none vs 4). Fitbit Sync to Health App's advantage is ratings volume (1.9K vs 2) and update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fitbit Sync to Health App sells 4 in-app purchases, starting at $9.99 per 7 days. Fitsynchronizer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Fitsynchronizer holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Fitbit Sync to Health App has 1.9K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Fitbit Sync to Health App ships an update fortnightly, Fitsynchronizer every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 5 level
Fitbit Sync to Health App versus Fitsynchronizer: the parameters behind the verdict, then further details
ParameterFitbit Sync to Health AppFitsynchronizer
PriceFreeFree
Rating4.1 (1.9K ratings)5.0 (2 ratings) — better
Positive reviews21.1% of reviews—
Number of ratings1.9K — better2
Update frequencyFortnightly — betterEvery 2 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#164 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size61 MB29 MB
Age rating4+17+
DeveloperZamalabs Yazılım ve Bilgi Teknolojileri Limited ŞirketiMatthieu Boivineau

Customer experience

Fitbit Sync to Health App

All ratings1,867 ratings
Positive75.5%
Neutral6.7%
Negative17.7%
Written reviews114 reviews
Positive21.1%
Neutral4.4%
Negative74.6%

Fitsynchronizer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Fitbit Sync to Health App

Reported bugs

7 issues
  • App crashes on launch or won't open
  • Sync failures and error messages
  • Data duplication when syncing multiple times daily
  • Inconsistent syncing of sleep data
  • Device pairing issues with iPhone
Show 2 more
  • App stops working after updates
  • Support link functionality broken

Requested features

3 requests
  • Heart rate variability (HRV) data syncing
  • Prevent data duplication on multiple daily syncs
  • Better sync intelligence to avoid duplicate entries

Fitsynchronizer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Fitbit Sync to Health App

Subscriptions3
  • Weekly Subscription3 Days trial$9.997 Days
  • Monthly Subscription$19.991 Month
  • Yearly Subscription$39.991 Year
One-time1
  • Lifetime$59.99
None

Fitsynchronizer

No in-app purchases

Questions

Is Fitbit Sync to Health App free?
Fitbit Sync to Health App is free to download, with in-app purchases available.
Is Fitsynchronizer free?
Fitsynchronizer is free to download, with no in-app purchases.
Which has better reviews, Fitbit Sync to Health App or Fitsynchronizer?
Fitsynchronizer is rated higher. Fitbit Sync to Health App averages 4.1 out of 5 from 1.9K ratings, while Fitsynchronizer averages 5.0 from 2 ratings.
Do Fitbit Sync to Health App or Fitsynchronizer have ads?
Both Fitbit Sync to Health App and Fitsynchronizer show ads.
Which is updated more often, Fitbit Sync to Health App or Fitsynchronizer?
Fitbit Sync to Health App ships an update fortnightly, and Fitsynchronizer every 2 months. Most recently, Fitbit Sync to Health App was updated on October 27, 2026 and Fitsynchronizer on October 24, 2026.

Other comparisons