# CO vs Connected Plus Sync

The clearest difference is ads: Connected Plus Sync at none against CO's shown. Connected Plus Sync also leads on review sentiment (40% vs 27%) and monetization model (free vs ad-supported). CO's advantage is update cadence (fortnightly vs every 24 months). 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.

CO ships an update fortnightly, Connected Plus Sync every 24 months. The most recent releases landed on September 24, 2026 and July 22, 2026 respectively.

## The numbers

| Metric | CO | Connected Plus Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/co-fit/id1514529526/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 27.2% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 24 months |
| Monetization | Ad-supported | **Free** |
| Size | 687 MB | 75 MB |
| Requires iOS | 14 | **12.0** |
| 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) | [Titan Company Limited](https://appshunter.io/developer/964406127) |

## 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


### Connected Plus Sync

[App page](https://appshunter.io/ios/app/connected-plus-sync/id1601785516)

This app syncs with your smartwatch to track daily activity, view performance trends, and manage notifications. It offers features like auto time sync, world time, find my phone, music control, and calendar alerts. Stay updated with weather forecasts and never miss calls or messages.

**Highlights:** Activity tracking and performance trends, Auto time sync, World Time display, Find my phone, Music, and Camera control, Calendar and notification management, Weather updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CO free?

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

### Is Connected Plus Sync free?

Connected Plus Sync is free to download, with no in-app purchases.

### Do CO or Connected Plus Sync have ads?

CO shows ads; Connected Plus Sync does not.

### Which is updated more often, CO or Connected Plus Sync?

CO ships an update fortnightly, and Connected Plus Sync every 24 months. Most recently, CO was updated on September 24, 2026 and Connected Plus Sync on July 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.*