# CO vs QMC App

The clearest difference is rating: QMC App at 5.0 against CO's 4.5. QMC App also leads on ads (none vs shown) and monetization model (free vs ad-supported). CO's advantage is ratings volume (1.2K vs 1) and update cadence (fortnightly vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QMC App holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: CO has 1.2K ratings behind it against 1, so its average is the more settled of the two.

CO ships an update fortnightly, QMC App monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CO | QMC App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (1.2K ratings)](https://appshunter.io/ios/app/co-fit/id1514529526/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qmc-app/id6499140562/reviews)** |
| Number of ratings | **1.2K** | 1 |
| Positive reviews | 26.9% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Ad-supported | **Free** |
| Size | 702 MB | 40 MB |
| Requires iOS | 14 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [深圳叩鼎科技有限责任公司](https://appshunter.io/developer/1514529525) | [Qatar Medical Center](https://appshunter.io/developer/1742555467) |

## What reviewers say

### CO

[App page](https://appshunter.io/ios/app/co-fit/id1514529526)

This app syncs data from a smartwatch, including steps, heart rate, and sleep. It also pushes phone notifications to the watch and allows for watch configuration like alarms and weather updates. Health data is for reference only and not for medical use.

**Highlights:** Sync steps, calories, heart rate, sleep, and exercise, Display data intuitively with a new UI, Push phone calls and text messages to the watch, Configure watch alarms, schedules, and backlighting, Sync weather and AGPS files for watch location, Access iPhone Health for real-time data sync

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to connect
- 🤩 Great watch and app experience
- 🤩 Awesome watch
- 👍 Good for the price
- 👍 Looks good

**What reviewers complain about**

- 🐛 Bluetooth connection issues
- 🐛 App crashes and freezes
- 🐛 Inaccurate measurements
- 🐛 Notifications not working
- 🐛 Firmware issues after updates

**Reported bugs**

- Time setting not working
- Watch disconnecting frequently
- Inaccurate step and distance tracking
- Inability to change weight in user profile
- Firmware update bricking the watch

**Requested features**

- More watch face designs
- Customization options for watch faces
- Integration with Apple Health
- Ability to remove unwanted features
- Better language support


### QMC App

[App page](https://appshunter.io/ios/app/qmc-app/id6499140562)

This app streamlines the Qatar visa medical process. It allows users to track application status, schedule appointments, and receive important updates via push notifications. Comprehensive FAQs and 24/7 support are also available.

**Highlights:** Track application status, Schedule appointments, Push notifications, FAQ section, 24/7 customer support, In-app chat

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

**In-app purchases:** none


## Frequently asked questions

### Is CO free?

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

### Is QMC App free?

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

### Which has better reviews, CO or QMC App?

QMC App is rated higher. CO averages 4.5 out of 5 from 1.2K ratings, while QMC App averages 5.0 from 1 ratings.

### Do CO or QMC App have ads?

CO shows ads; QMC App does not.

### Which is updated more often, CO or QMC App?

CO ships an update fortnightly, and QMC App monthly. Most recently, CO was updated on November 3, 2026 and QMC App on November 4, 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.*