# Treadmill Smart Speed vs COROS

The clearest difference is rating: COROS at 4.3 against Treadmill Smart Speed's 3.3. COROS also leads on in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 2 months). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. Treadmill Smart Speed sells 1 one-off in-app purchase. COROS asks for nothing beyond the download.

COROS holds the better App Store score, 4.3 against 3.3. That said, the two scores are not equally well evidenced: COROS has 796 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 53% of Treadmill Smart Speed's written reviews are positive against 54% of COROS's.

Treadmill Smart Speed ships an update every 2 months, COROS every 2 weeks. The most recent releases landed on October 19, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Treadmill Smart Speed | COROS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (24 ratings)](https://appshunter.io/ios/app/treadmill-smart-speed/id1193076459/reviews) | **[4.3 (796 ratings)](https://appshunter.io/ios/app/coros/id1277625343/reviews)** |
| Number of ratings | 24 | **796** |
| Positive reviews | 52.6% of reviews | **54.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 3 MB | 856 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AppyAppster Ltd](https://appshunter.io/developer/1746049419) | [COROS Wearables Inc.](https://appshunter.io/developer/992834306) |

## What reviewers say

### Treadmill Smart Speed

[App page](https://appshunter.io/ios/app/treadmill-smart-speed/id1193076459)

This app transmits your treadmill running speed from your iPhone or Apple Watch to a receiving device via Bluetooth. It offers multiple input methods, including manual treadmill speed selection, iPhone motion sensing, and Apple Watch data integration for speed, cadence, and heart rate.

**Highlights:** Transmit treadmill speed via Bluetooth, iPhone motion sensor speed estimation, Apple Watch speed, cadence, and heart rate transmission, Manual speed control via crown, Integrates with iPhone Health App, Compatible with BLE 4.0 Macs

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock forever | $9.99 | one-time |

**What reviewers like**

- 👍 Works with Zwift
- 💰 Affordable alternative
- 🏃‍♀️ Enables Zwift running
- ✅ Solves treadmill speed issues
- 💡 Good for budget-conscious users

**What reviewers complain about**

- 🐛 Connection issues
- 🐛 Speed not detected
- 🐛 Laggy updates
- 🐛 Accelerometer mode unreliable
- 🐛 Disclaimer pops up frequently

**Reported bugs**

- Problems reported with Zwift connectivity
- Doesn't show up on Bluetooth in Zwift
- Slow response time from armband mode
- Speed not detected in Zwift
- Intermittent information transmission

**Requested features**

- Improve response time for armband mode
- Allow app to work in background
- Develop for Zwift bike with Power (Watt)
- Make app available in more countries
- Provide instructions for Apple TV connection


### COROS

[App page](https://appshunter.io/ios/app/coros/id1277625343)

Enhance your fitness journey with detailed daily data, activity summaries, and advanced navigation tools. Customize your devices, download training plans, and seamlessly sync with popular third-party health platforms.

**Highlights:** Daily data tracking (sleep, steps, calories), Activity summaries for all sports, Map and route management, Device and personal settings customization, Third-party app integration

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent battery life
- 👍 Intuitive and easy to use app
- 🚀 Quick sync with watch
- 👍 Detailed data and metrics
- 👍 Responsive customer service

**What reviewers complain about**

- 🐛 Connectivity issues with watch
- 🐛 Inaccurate heart rate tracking
- 🐛 Syncing problems with third-party apps
- 🐛 Buggy after recent updates
- 🐛 Confusing user interface changes

**Reported bugs**

- App crashes frequently
- Inability to log in or sync data
- Inconsistent data between watch and app
- Elevation/GPS tracking issues
- Strength training mode not working properly

**Requested features**

- Add more watch face options
- Improve sleep tracking accuracy
- Integrate with Apple Health app
- Add ability to edit/delete activities
- Provide more customization options


## Frequently asked questions

### Is Treadmill Smart Speed free?

Treadmill Smart Speed is free to download, with in-app purchases available.

### Is COROS free?

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

### Which has better reviews, Treadmill Smart Speed or COROS?

COROS is rated higher. Treadmill Smart Speed averages 3.3 out of 5 from 24 ratings, while COROS averages 4.3 from 796 ratings.

### Do Treadmill Smart Speed or COROS have ads?

Neither Treadmill Smart Speed nor COROS shows ads.

### Which is updated more often, Treadmill Smart Speed or COROS?

Treadmill Smart Speed ships an update every 2 months, and COROS every 2 weeks. Most recently, Treadmill Smart Speed was updated on October 19, 2026 and COROS on October 20, 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.*