# RDFit vs QFit

The clearest difference is rating: QFit at 3.3 against RDFit's 2.8. QFit also leads on iOS requirement (9.0 vs 13.0). RDFit's advantage is in-app purchases (none vs 3) and ratings volume (3.1K vs 49). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. QFit sells 3 one-off in-app purchases. RDFit asks for nothing beyond the download.

QFit holds the better App Store score, 3.3 against 2.8. That said, the two scores are not equally well evidenced: RDFit has 3.1K ratings behind it against 49, so its average is the more settled of the two. Written reviews complicate that: 45% of RDFit's written reviews are positive against 24% of QFit's, so the app with the better star average is not the one people write more warmly about.

RDFit ships an update fortnightly, QFit every 2 weeks. The most recent releases landed on October 29, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | RDFit | QFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (3.1K ratings)](https://appshunter.io/ios/app/rdfit/id1493359248/reviews) | **[3.3 (49 ratings)](https://appshunter.io/ios/app/qfit/id1598773243/reviews)** |
| Number of ratings | **3.1K** | 49 |
| Positive reviews | **45.5% of reviews** | 23.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 290 MB | 165 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市润德智能通讯科技有限公司](https://appshunter.io/developer/1761719783) | [Shenzhen Qingcheng Wireless Technology Co., Ltd.](https://appshunter.io/developer/1598773245) |

## What reviewers say

### RDFit

[App page](https://appshunter.io/ios/app/rdfit/id1493359248)

This app synchronizes with HealthKit to read and write health data. It's developed by a company specializing in smart wearables and electronic products.

**Highlights:** HealthKit integration, Read Health data, Write Health data, Smart wearable device support, Electronic product integration

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- ⌚ Beautiful watch design and appearance
- ❤️ Health monitoring features (blood sugar, blood pressure)
- 🎨 Customizable watch faces available
- 📱 Good app connectivity when working properly

**What reviewers complain about**

- 🐛 Frequent app crashes and freezing
- 📲 Poor notification system (missing SMS/text messages)
- 🔌 Limited watch face customization (only one downloadable at a time)
- 🔗 Unreliable Bluetooth connection and pairing issues
- 📊 Inaccurate health metrics and sensor readings

**Reported bugs**

- App crashes on startup and during synchronization
- App crashes after recent updates
- Watch locks for no reason and cannot unlock
- GPS feature not connecting despite proper setup
- Automatic Bluetooth connection fails

**Requested features**

- Add more watch face options and styles
- Allow multiple watch faces to be downloaded simultaneously
- Implement SMS/text message notifications
- Add Apple Watch-style watch faces
- Enable custom watch face editing with more customization options


### QFit

[App page](https://appshunter.io/ios/app/qfit/id1598773243)

Track your workouts, calorie consumption, heart rate, and sleep patterns. Seamlessly sync your smart watch data to Apple Health for comprehensive health management and analysis.

**Highlights:** Exercise monitoring, Calorie consumption monitoring, Heart rate monitoring, Sleep monitoring, Apple Health Sync, Watch face customization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Watch Face A | $3.99 | one-time |
| Watch Face B | $49.99 | one-time |
| Watch Face C | $59.99 | one-time |


## Frequently asked questions

### Is RDFit free?

RDFit is free to download, with no in-app purchases.

### Is QFit free?

QFit is free to download, with in-app purchases available.

### Which has better reviews, RDFit or QFit?

QFit is rated higher. RDFit averages 2.8 out of 5 from 3.1K ratings, while QFit averages 3.3 from 49 ratings.

### Do RDFit or QFit have ads?

Neither RDFit nor QFit shows ads.

### Which is updated more often, RDFit or QFit?

RDFit ships an update fortnightly, and QFit every 2 weeks. Most recently, RDFit was updated on October 29, 2026 and QFit on October 22, 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.*