Comparison

VDOT Running Calculator vs Williams Pace...

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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).

About

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.

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
Read full description

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

VDOT Running Calculator4 screens
Williams Pace...3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard8 real differences · 3 level
VDOT Running Calculator versus Williams Pace...: the parameters behind the verdict, then further details
ParameterVDOT Running CalculatorWilliams Pace...
PriceFree — better$4.99
Rating4.9 (1.6K ratings) — better4.5 (17 ratings)
Positive reviews73.1% of reviews87.5% of reviews — better
Number of ratings1.6K — better17
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#198 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.5 — better
Further details — not scored
Size38 MB1 MB
Age rating4+4+
DeveloperThe Run SMART Project, LLCRobert E Williams

Customer experience

VDOT Running Calculator

All ratings1,581 ratings
Positive97.6%
Neutral0.9%
Negative1.5%
Written reviews52 reviews
Positive73.1%
Neutral7.7%
Negative19.2%

Williams Pace...

All ratings17 ratings
Positive82.4%
Neutral5.9%
Negative11.8%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

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

1 purchases

VDOT Running Calculator

One-time1
  • VDOT Calculator Premium2 variants$8.99
None

Williams Pace...

No in-app purchases

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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