# VDOT Running Calculator vs Williams Pace...

The clearest difference is price: VDOT Running Calculator at Free against Williams Pace...'s $4.99. VDOT Running Calculator also leads on rating (4.9 vs 4.5) and ratings volume (1.6K vs 17). Williams Pace...'s advantage is in-app purchases (none vs 2) and update cadence (monthly vs every 4 months). On ads, device support and iOS requirement there is nothing between them.

VDOT Running Calculator is free to download; Williams Pace... costs $4.99 up front. VDOT Running Calculator sells 1 one-off in-app purchase. Williams Pace... asks for nothing beyond the download.

VDOT Running Calculator holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: VDOT Running Calculator has 1.6K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 73% of VDOT Running Calculator'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.

VDOT Running Calculator ships an update every 4 months, Williams Pace... monthly. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | VDOT Running Calculator | Williams Pace... |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.9 (1.6K ratings)](https://appshunter.io/ios/app/vdot-running-calculator/id973571014/reviews)** | [4.5 (17 ratings)](https://appshunter.io/ios/app/williams-pace/id1457530273/reviews) |
| Number of ratings | **1.6K** | 17 |
| Positive reviews | 73.1% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#198** |
| Size | 38 MB | 1 MB |
| Requires iOS | 15.0 | **14.5** |
| Devices | iPhone, iPad, iPod | 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

### 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


### 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 VDOT Running Calculator free?

VDOT Running Calculator 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, VDOT Running Calculator or Williams Pace...?

VDOT Running Calculator is rated higher. VDOT Running Calculator averages 4.9 out of 5 from 1.6K ratings, while Williams Pace... averages 4.5 from 17 ratings.

### Do VDOT Running Calculator or Williams Pace... have ads?

Neither VDOT Running Calculator nor Williams Pace... shows ads.

### Which is updated more often, VDOT Running Calculator or Williams Pace...?

VDOT Running Calculator ships an update every 4 months, and Williams Pace... monthly. Most recently, VDOT Running Calculator 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.*