# Power Sync for Fitbit vs Fitsynchronizer

The clearest difference is rating: Fitsynchronizer at 5.0 against Power Sync for Fitbit's 4.2. Fitsynchronizer also leads on in-app purchases (none vs 4). Power Sync for Fitbit's advantage is ads (none vs shown) and ratings volume (16K vs 2). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Power Sync for Fitbit sells 4 in-app purchases, starting at $1.99 per month. Fitsynchronizer asks for nothing beyond the download.

Fitsynchronizer holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Power Sync for Fitbit has 16K ratings behind it against 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 27, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Power Sync for Fitbit | Fitsynchronizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (16K ratings)](https://appshunter.io/ios/app/power-sync-for-fitbit/id1071544839/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fitsynchronizer/id6447212554/reviews)** |
| Number of ratings | **16K** | 2 |
| Positive reviews | 19.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 59 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Touchberry](https://appshunter.io/developer/1071544838) | [Matthieu Boivineau](https://appshunter.io/developer/1680598818) |

## What reviewers say

### Power Sync for Fitbit

[App page](https://appshunter.io/ios/app/power-sync-for-fitbit/id1071544839)

Seamlessly sync your Fitbit data to Apple Health for free. Track heart rate, steps, distance, weight, sleep, and more. Supports all Fitbit devices and multiple accounts, with an optional auto-sync feature for convenience.

**Highlights:** Sync Fitbit data to Apple Health, Sync Heart Rate data, Automatic data synchronization, Support for all Fitbit device types, Multiple Fitbit account support, Dark Mode support

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto Sync for A Month | $1.99 | per month |
| Auto Sync for A Year | $7.99 | per year |
| Auto Sync to Health App | $1.99 | one-time |
| Auto Sync for Entire Life | $14.99 | one-time |

**What reviewers like**

- 👍 Simple and quick
- 🚀 Comprehensive data sync
- 💡 Allows Fitbit and Apple Health integration
- 🚀 Fast data transfer

**What reviewers complain about**

- 🐛 Sync issues and failures
- 🐛 Inaccurate data sync
- 🐛 Duplicates data
- 🐛 Auto-sync not working as expected
- 🔋 Drains battery when running in background

**Reported bugs**

- Sync repeatedly fails
- Adds duplicate data to Apple Health
- Incorrectly syncs resting heart rate data
- Syncs outdated/incorrect weight data

**Requested features**

- Add support for more Fitbit data types (heart rate, workouts, sleep stages)
- Allow customization of sync frequency and timing
- Improve auto-sync reliability and functionality


### Fitsynchronizer

[App page](https://appshunter.io/ios/app/fitsynchronizer/id6447212554)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Power Sync for Fitbit free?

Power Sync for Fitbit 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, Power Sync for Fitbit or Fitsynchronizer?

Fitsynchronizer is rated higher. Power Sync for Fitbit averages 4.2 out of 5 from 16K ratings, while Fitsynchronizer averages 5.0 from 2 ratings.

### Do Power Sync for Fitbit or Fitsynchronizer have ads?

Fitsynchronizer shows ads; Power Sync for Fitbit does not.

### Which is updated more often, Power Sync for Fitbit or Fitsynchronizer?

Power Sync for Fitbit ships an update every 2 months, and Fitsynchronizer every 2 months. Most recently, Power Sync for Fitbit was updated on September 27, 2026 and Fitsynchronizer on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*