# CO vs ProWatch

The clearest difference is rating: CO at 4.5 against ProWatch's 2.5. CO also leads on ratings volume (1.2K vs 2). ProWatch's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.

CO holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: CO has 1.2K ratings behind it against 2, so its average is the more settled of the two.

CO ships an update fortnightly, ProWatch every 8 days. The most recent releases landed on September 24, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | CO | ProWatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/co-fit/id1514529526/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/prowatch/id6444039660/reviews) |
| Number of ratings | **1.2K** | 2 |
| Positive reviews | 27.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Ad-supported | **Free** |
| Size | 687 MB | 345 MB |
| Requires iOS | 14 | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [深圳叩鼎科技有限责任公司](https://appshunter.io/developer/1514529525) | [Promate Innovations INC](https://appshunter.io/developer/1529429595) |

## 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


### ProWatch

[App page](https://appshunter.io/ios/app/prowatch/id6444039660)

This app syncs your smartwatch data, including steps, heart rate, and sleep, with an intuitive interface. It also pushes phone notifications to your watch and allows for watch configuration like alarms and weather.

**Highlights:** Sync steps, calories, mileage, heart rate, sleep, Display exercise records intuitively, Push phone calls and SMS to watch, Configure watch alerts, alarms, and backlight, Sync weather and AGPS files, Integrates with iPhone Health

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CO free?

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

### Is ProWatch free?

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

### Which has better reviews, CO or ProWatch?

CO is rated higher. CO averages 4.5 out of 5 from 1.2K ratings, while ProWatch averages 2.5 from 2 ratings.

### Do CO or ProWatch have ads?

CO shows ads; ProWatch does not.

### Which is updated more often, CO or ProWatch?

CO ships an update fortnightly, and ProWatch every 8 days. Most recently, CO was updated on September 24, 2026 and ProWatch on June 1, 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.*