# VDOT Running Calculator vs COROS

The clearest difference is rating: VDOT Running Calculator at 4.9 against COROS's 4.3. VDOT Running Calculator also leads on review sentiment (74% vs 54%). COROS's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 4 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. VDOT Running Calculator sells 1 one-off in-app purchase. COROS asks for nothing beyond the download.

VDOT Running Calculator holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 1.6K and 797 respectively. Written reviews point the same way: 74% of VDOT Running Calculator's written reviews are positive against 54% of COROS's.

VDOT Running Calculator ships an update every 4 months, COROS every 2 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | VDOT Running Calculator | COROS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (1.6K ratings)](https://appshunter.io/ios/app/vdot-running-calculator/id973571014/reviews)** | [4.3 (797 ratings)](https://appshunter.io/ios/app/coros/id1277625343/reviews) |
| Number of ratings | **1.6K** | 797 |
| Positive reviews | **73.8% of reviews** | 54.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 38 MB | 856 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Run SMART Project, LLC](https://appshunter.io/developer/973571013) | [COROS Wearables Inc.](https://appshunter.io/developer/992834306) |

## What reviewers say

### VDOT Running Calculator

[App page](https://appshunter.io/ios/app/vdot-running-calculator/id973571014)

This app helps runners and coaches calculate training paces, equate race performances, and adjust for environmental factors. Based on decades of scientific research, it provides a VDOT score to measure running ability and compare performances across different distances.

**Highlights:** Calculate time, distance, and race paces, Determine current training paces, Equate race performances across distances, Adjust paces for heat and altitude, Measure running ability with VDOT score

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VDOT Calculator Premium | $8.99 | one-time |

**What reviewers like**

- 🚀 Great tool
- 👍 Simplicity of use
- 👍 Extremely helpful
- 👍 Does its job well
- 👍 Good calculator

**What reviewers complain about**

- 🐛 Crashes
- 🐛 Limits calculations without premium
- 🐛 Doesn't remember previous data
- 🐛 Bugs with custom distances
- 🐛 Can't see definitions

**Reported bugs**

- Crashes when upgrading to premium
- Can't scroll beyond 200/400m results
- Custom distance doesn't support metric

**Requested features**

- Expand time field to support ultras
- Add 6k and 8k distances
- Allow inputting VDOT score directly
- Allow typing in times instead of scrolling


### 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 VDOT Running Calculator free?

VDOT Running Calculator 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, VDOT Running Calculator or COROS?

VDOT Running Calculator is rated higher. VDOT Running Calculator averages 4.9 out of 5 from 1.6K ratings, while COROS averages 4.3 from 797 ratings.

### Do VDOT Running Calculator or COROS have ads?

Neither VDOT Running Calculator nor COROS shows ads.

### Which is updated more often, VDOT Running Calculator or COROS?

VDOT Running Calculator ships an update every 4 months, and COROS every 2 weeks. Most recently, VDOT Running Calculator was updated on October 26, 2026 and COROS on October 27, 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.*