CO vs EohLink
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO
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.
- 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
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CO FIT is a newly designed and developed app for our new smartwatch collection only. main feature: Sync your steps, calories, mileage, heart rate, sleep and exercise records from your watch. The newly designed UI can display data more intuitively. After binding and authorization, we will push the phone's incoming calls and text messages to the watch to avoid losing information. You can use the app to configure the watch's sedentary alarms, alarms, schedules, backlighting, as well as sync weather and AGPS files (to help the watch locate) and other features for better use of the watch. During use, if you have any questions, you can ask at any time, we will listen to your suggestions and make improvements. Disclaimer: 1. The data displayed by the app is provided by the device, and the app only records and shares 2. All health data displayed in the app are not suitable for medical use, all health data are for reference only, these data should not be used as a substitute for the opinions of health care professionals For accurate data, consult your doctor. Authorization Instructions 1. We will access iPhone Health, sync device data to iPhone Health in real time 2. We will access the mobile phone location to obtain local weather information and synchronize it to the device display
EohLink
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EohLink connects supported Bluetooth wearables to your employer's EOHours health monitoring system. Workers can sign in with their employee ID, pair a compatible wearable band, and securely upload health metrics such as heart rate, body temperature, and blood oxygen for workplace health and safety monitoring. EohLink is designed for authorized workforce use with EOHours / BuildCare. It is not intended for medical diagnosis, treatment, or emergency response. Requires a compatible wearable device and an active worker account.
Screenshots
Verdict
The clearest difference is ads: EohLink at none against CO's shown. EohLink also leads on iOS requirement (10.0 vs 14). CO's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CO ships an update fortnightly, EohLink every 2 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.
| Parameter | CO | EohLink |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.2K ratings) — better | — |
| Positive reviews | 26.9% of reviews | — |
| Number of ratings | 1.2K — better | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14 | 10.0 — better |
| Further details — not scored | ||
| Size | 702 MB | 18 MB |
| Age rating | 12+ | 4+ |
| Developer | 深圳叩鼎科技有限责任公司 | Li Chen |
Bugs and requests
CO
Reported bugs
7 issues- Time setting not working
- Watch disconnecting frequently
- Inaccurate step and distance tracking
- Inability to change weight in user profile
- Firmware update bricking the watch
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- Syncing issues with iPhone
- Bluetooth not connecting properly
Requested features
7 requests- More watch face designs
- Customization options for watch faces
- Integration with Apple Health
- Ability to remove unwanted features
- Better language support
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- Improved notification handling
- GPS functionality
EohLink
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CO
No in-app purchases
EohLink
No in-app purchases






