# V.O2 vs Williams Pace...

The clearest difference is price: V.O2 at Free against Williams Pace...'s $4.99. V.O2 also leads on rating (4.9 vs 4.5) and ratings volume (6.2K vs 17). Williams Pace...'s advantage is in-app purchases (none vs 17) and review sentiment (88% vs 71%). On ads and device support there is nothing between them.

V.O2 is free to download; Williams Pace... costs $4.99 up front. V.O2 sells 16 in-app purchases, starting at $12.99 per month. Williams Pace... asks for nothing beyond the download.

V.O2 holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: V.O2 has 6.2K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 71% of V.O2's written reviews are positive against 88% of Williams Pace...'s, so the app with the better star average is not the one people write more warmly about.

V.O2 ships an update every 6 days, Williams Pace... monthly. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | V.O2 | Williams Pace... |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.9 (6.2K ratings)](https://appshunter.io/ios/app/vo2-running-coach/id977666802/reviews)** | [4.5 (17 ratings)](https://appshunter.io/ios/app/williams-pace/id1457530273/reviews) |
| Number of ratings | **6.2K** | 17 |
| Positive reviews | 70.7% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#198** |
| Size | 144 MB | 1 MB |
| Requires iOS | 16.6 | **14.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Run SMART Project, LLC](https://appshunter.io/developer/973571013) | [Robert E Williams](https://appshunter.io/developer/1457530272) |

## What reviewers say

### V.O2

[App page](https://appshunter.io/ios/app/vo2-running-coach/id977666802)

This app provides adaptive training plans and personalized coaching for runners of all levels. It assesses your fitness, offers custom paces, and syncs with popular devices. Train intelligently to achieve measurable improvements and become your best runner.

**Highlights:** Adaptive training plans, VDOT fitness assessment, Personalized training paces, Sync with Apple Health, Coros, Garmin, Strava, Real-time guidance on Apple Watch, Coros, Garmin, Training adaptation based on improvement, Coach communication and training adjustments

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Adaptive Training Subscription | $12.99 | per month |
| Adaptive Training - Annual | $99.99 | per year |
| Base/Fitness - 8 weeks | $44.99 | one-time |
| Half Marathon - 12 weeks | $54.99 | one-time |
| 10 Km - 12 weeks | $54.99 | one-time |
| 5 Km - 12 weeks | $54.99 | one-time |
| 1500m - 12 weeks | $54.99 | one-time |
| 3 Km - 12 weeks | $54.99 | one-time |
| Marathon - 15 weeks | $69.99 | one-time |
| Half Marathon - 15 weeks | $69.99 | one-time |
| Marathon - 18 weeks | $79.99 | one-time |
| Half Marathon - 18 weeks | $79.99 | one-time |
| Jack's Elite Marathon - 18wks | $79.99 | one-time |
| Jack's First Marathon - 18wks | $79.99 | one-time |
| Jack's Boston Marathon - 18wks | $94.99 | one-time |
| Marathon - 24 weeks | $99.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Great integration with Garmin watches
- 💡 Excellent for coaching and athlete communication
- 👍 Fantastic adaptive programming and training plans
- 👍 Seamless sync with Garmin and other platforms

**What reviewers complain about**

- 🐛 Issues with syncing to Garmin and other platforms
- 🐛 Inconsistent performance and bugs
- 🐛 Difficulty editing or moving workouts
- 🐛 Inaccurate elevation and GPS tracking
- 🔍 Limited customization and preset workout options

**Reported bugs**

- Apple Watch app issues and lack of functionality
- Problems with syncing Garmin runs to the correct workouts
- Inconsistent elevation and GPS data
- Bugs and crashes when using the app

**Requested features**

- Ability to duplicate and edit workouts
- Improved Apple Watch and Health app integration
- More advanced adaptive training and automation
- Expanded cross-training and workout modalities
- Better user interface and workflow for coaches


### Williams Pace...

[App page](https://appshunter.io/ios/app/williams-pace/id1457530273)

**Currently charting:** #198 Top Paid · Health & Fitness (US App Store)

This app calculates running paces using methods developed by a legendary coach. It helps runners of all levels train effectively for road and track events, drawing on decades of proven performance-enhancing techniques.

**Highlights:** Pace calculation for road and track, Based on legendary coach's methods, Training for world-class runners, Developed by a Bowerman protégé, Helps break performance barriers

**In-app purchases:** none


## Frequently asked questions

### Is V.O2 free?

V.O2 is free to download, with in-app purchases available.

### Is Williams Pace... free?

Williams Pace... costs $4.99, with no in-app purchases.

### Which has better reviews, V.O2 or Williams Pace...?

V.O2 is rated higher. V.O2 averages 4.9 out of 5 from 6.2K ratings, while Williams Pace... averages 4.5 from 17 ratings.

### Do V.O2 or Williams Pace... have ads?

Neither V.O2 nor Williams Pace... shows ads.

### Which is updated more often, V.O2 or Williams Pace...?

V.O2 ships an update every 6 days, and Williams Pace... monthly. Most recently, V.O2 was updated on September 26, 2026 and Williams Pace... on September 10, 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.*