VDOT Running Calculator vs Williams Pace...
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VDOT Running Calculator
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.
- 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
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The official VDOT Running Calculator, designed by Dr. Jack Daniels - named World's Best Running Coach by Runner's World Magazine - and the team at VDOT O2. Thanks to over 50 years of scientific research conducted by legendary coach Dr. Jack Daniels, runners and coaches can quickly determine appropriate training paces, equate race performances and adjust for heat and altitude. Features: • Calculate time, distance and race paces • Calculate your current training paces • Calculate and compare the equivalent performances of a race result at other distances • Calculate the effect of temperature or altitude on training and race paces What's Your VDOT? VDOT is a measure of your current running ability. It assigns a score to all running performances, let's you determine your current training paces, and equates a race time in one distance to another. For instance, you can compare your VDOT score from a recent 5k result to a friend's score who just ran a half marathon. Who won? What VDOT Level Have You Reached? Input a race result or estimated performance and learn what score it reaches on the VDOT scale. Enter all your past performances to see which race result scores the highest. There are 10 levels starting at Beginner - White (Female: 34.3, Male: 36.8) all the way up to Professional - Gold (Female: 71, Male: 80).
Williams Pace...
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.
- 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
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The Williams Pace Calculator © App is the latest digital version of the road and track running pace calculator that Bill Bowerman, the legendary coach and NIKE co-founder, used for training world-class runners at the University of Oregon and for the Olympic Games. His renowned ‘Men of Oregon’ athletes broke performance barriers, winning a total of 4 NCAA Team Championships and 24 NCAA individual titles. Now Bob Williams, one of the Bowerman protégé, brings you the know-how of pace calculation to you!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | VDOT Running Calculator | Williams Pace... |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.9 (1.6K ratings) — better | 4.5 (17 ratings) |
| Positive reviews | 73.1% of reviews | 87.5% of reviews — better |
| Number of ratings | 1.6K — better | 17 |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #198 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.5 — better |
| Further details — not scored | ||
| Size | 38 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | The Run SMART Project, LLC | Robert E Williams |
Customer experience
VDOT Running Calculator
Williams Pace...
Bugs and requests
VDOT Running Calculator
Reported bugs
3 issues- Crashes when upgrading to premium
- Can't scroll beyond 200/400m results
- Custom distance doesn't support metric
Requested features
4 requests- 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...
Not enough reviews yet to summarise bugs or requests.
In-app purchases
VDOT Running Calculator
- VDOT Calculator Premium2 variants$8.99
Williams Pace...
No in-app purchases
Questions
Is VDOT Running Calculator free?
Is Williams Pace... free?
Which has better reviews, VDOT Running Calculator or Williams Pace...?
Do VDOT Running Calculator or Williams Pace... have ads?
Which is updated more often, VDOT Running Calculator or Williams Pace...?
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