Comparison

V.O2 vs Pace

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

Head to head
About

V.O2

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
Read full description

Coaching app for athletes looking to take their running to the next level. How it works Athletes: Get an invite from a coach or choose one coaching option. • Adaptive Trainer (14-Day Free Trial) • Goal Race Plan • Match with a Private Coach Coaches: Start your 30-day free trial and learn how to manage your athletes at https://vdoto2.com/vdotcoach Popular Features • Assess your current running fitness (VDOT) • Built-in personalized training paces • Sync training calendar with GPS data from Apple Health, Coros, Garmin or Strava • Sync workouts/pace targets to Apple Watch, Coros or Garmin for real-time guidance • Adapt your training based on your improvement • Work with your coach, communicate and adjust training Truly Personalized Unlike most running apps, VDOT knows you. It understands the type of runner you are, what you're training for, and how to maximize your efforts. It also gives you more control over your training, leveraging your feedback to deliver real-time data which fine tunes your training and leads to continuous progression. With fully automated, truly personalized and highly-adaptive training, VDOT helps you achieve measurable improvement — all in an effort to make you the best runner you can be. Intelligent Training With a focus on training over tracking and coaching over running, VDOT offers access to the highest quality, Olympic-style training for runners of all levels-right from any mobile device. Designed to help runners train correctly and more intelligently, VDOT elicits maximum benefit while reducing the required effort. These high-quality workouts promote healthy, responsible, and beneficial sessions while simultaneously preventing overtraining. Olympic Pedigree V.O2 was built from the foundation of a scientifically-validated training methodology. Based on former Olympian, author, and legendary running coach Jack Daniels’ exercise science principles, the methodology not only benefits runners of all ages and abilities when it comes to improving their running fitness but it also serves as the best measure of running economy across a variety of runners and events, making it an ideal way to compare performances. High-school, college, Olympic and non-elite runners have all trained, ran, and succeeded with the VDOT methodology. -”Dr. Jack Daniels has had a bigger influence on training-for-running than anyone. He might be considered the Albert Einstein of the sport." - Runner’s World Magazine

About

Pace

This app helps runners plan their races by calculating pace and speed. It provides instant conversions and displays finish times for various race distances, from short sprints to ultra-marathons. Users can also plan race strategies with detailed splits and switch between metric and imperial units.

Highlights
  • Instant pace and speed conversion
  • Finish time calculator for various distances
  • Race strategy planning with splits
  • Support for miles and kilometers
  • Apple Watch compatibility
Features
Read full description

Pace helps runners plan races with clear targets, fast conversions, and practical split strategies. Enter your target pace or speed and instantly convert between them, then see projected finish times across popular distances from 400m and the mile to 5K, 10K, Half Marathon, Marathon, 50K, 50 Mile, and 100 Mile. What you can do - Convert pace and speed instantly - Enter a goal finish time to see the pace you need - View finish times across short, long, and ultra distances - Plan even, negative, or positive splits - Add custom race distances in meters, kilometers, or miles - Switch between miles and kilometers - Use quick slider controls or manual pace entry - Ask Siri for a finish time, or for the pace at a treadmill speed - Use Pace on Apple Watch with Digital Crown support Pace Pro A one-time purchase that removes ads and adds finish time widgets for your Home Screen and Lock Screen, plus splits in Siri answers. Whether you are training for a 5K, marathon, or 100-miler, Pace gives you fast, reliable numbers for smarter race planning.

Screenshots

V.O24 screens
Pace4 screens

Verdict

The call

The clearest difference is ads: V.O2 at none against Pace's shown. V.O2 also leads on update cadence (weekly vs every 6 weeks) and ratings volume (6.3K vs 386). On price, rating, review sentiment and in-app purchases 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

Both are free to download. V.O2 sells 16 in-app purchases, starting at $12.99 per month and Pace sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

V.O2 holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: V.O2 has 6.3K ratings behind it against 386, so its average is the more settled of the two. Written reviews complicate that: 71% of V.O2's written reviews are positive against 75% of Pace's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

V.O2 ships an update weekly, Pace every 6 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
V.O2 versus Pace: the parameters behind the verdict, then further details
ParameterV.O2Pace
PriceFreeFree
Rating4.9 (6.3K ratings) — better4.7 (386 ratings)
Positive reviews71.0% of reviews75.0% of reviews — better
Number of ratings6.3K — better386
Update frequencyWeekly — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.6 — better18.6
Further details — not scored
Size142 MB16 MB
Age rating4+4+
DeveloperThe Run SMART Project, LLCSkipjack Studios, LLC

Customer experience

V.O2

All ratings6,278 ratings
Positive97.6%
Neutral0.9%
Negative1.4%
Written reviews176 reviews
Positive71.0%
Neutral8.0%
Negative21.0%

Pace

All ratings386 ratings
Positive92.2%
Neutral2.8%
Negative4.9%
Written reviews28 reviews
Positive75.0%
Neutral7.1%
Negative17.9%

User reviews

V.O2

From 6.3K App Store ratings

What we love

  • 👍 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

Room to improve

  • 🐛 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

Pace

From 386 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 💡 Custom splits functionality
  • 🚀 Efficient pace calculation
  • 👍 Straightforward UI
  • 💡 Toggle between metric and imperial units

Room to improve

  • 💸 Intrusive ads after update
  • 🐛 Paces are sometimes incorrect
  • 🐛 Algorithm inaccuracies
  • 🐛 Pace display issues with km/h
  • 🐛 UI elements not visible on certain devices

Bugs and requests

V.O2

Reported bugs

4 issues
  • 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

6 requests
  • 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
Show 1 more
  • Keyword-based search for notes and workouts

Pace

Reported bugs

5 issues
  • Paces are off compared to online calculators
  • Algorithm for speed/distance calculation is incorrect
  • Pace display doesn't change correctly when using km/h
  • Results for marathon are not visible on iPhone 14 Pro Max
  • Half marathon distance displayed incorrectly in overview

Requested features

5 requests
  • Add custom distance input
  • Include shorter track distances (e.g., 200m, 400m, 800m, 1500m, 1600m)
  • Make default goal time distance configurable
  • Ability to print chosen time line of partials
  • Improve visibility of marathon results on smaller screens

In-app purchases

16 purchases

V.O2

Subscriptions2
  • Adaptive Training Subscription14 Days trial2 variants$12.991 Month
  • Adaptive Training - Annual14 Days trial$99.991 Year
One-time14
  • Base/Fitness - 8 weeks$44.99
  • Half Marathon - 12 weeks$54.99
  • 10 Km - 12 weeks$54.99
Show 11 more
  • 5 Km - 12 weeks$54.99
  • 1500m - 12 weeks$54.99
  • 3 Km - 12 weeks$54.99
  • Marathon - 15 weeks$69.99
  • Half Marathon - 15 weeks$69.99
  • Marathon - 18 weeks$79.99
  • Half Marathon - 18 weeks$79.99
  • Jack's Elite Marathon - 18wks$79.99
  • Jack's First Marathon - 18wks$79.99
  • Jack's Boston Marathon - 18wks$94.99
  • Marathon - 24 weeks$99.99
1 purchases

Pace

One-time1
  • Pace Pro$4.99

Questions

Is V.O2 free?
V.O2 is free to download, with in-app purchases available.
Is Pace free?
Pace is free to download, with in-app purchases available.
Which has better reviews, V.O2 or Pace?
V.O2 is rated higher. V.O2 averages 4.9 out of 5 from 6.3K ratings, while Pace averages 4.7 from 386 ratings.
Do V.O2 or Pace have ads?
Pace shows ads; V.O2 does not.
Which is updated more often, V.O2 or Pace?
V.O2 ships an update weekly, and Pace every 6 weeks. Most recently, V.O2 was updated on October 26, 2026 and Pace on October 27, 2026.

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