Comparison

V.O2 vs Runner's Tools

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

Runner's Tools

This app helps runners plan and analyze their training and races. It offers features like race predictors, training pace calculators, and split planners. It also accounts for environmental factors and converts between metric and imperial units.

Highlights
  • Race Predictor
  • Training Pace Calculator
  • Track Split Conversion
  • Race Split Planning
  • Environmental Factor Analysis
  • Pace Conversion
  • Age Graded Performance Calculation
Features
Read full description

Features: - Race Predictor: Will predict your potential on the most common race distances based on a given one. The automatic calculation uses a dynamic scale but we also made it possible to use your own (single Riegel factor) value. The default gives a realistic prediction, not assuming everyone is a trained high mileage athlete! - Training paces: Based on a (planned or recent) race performance, will calculate both the appropriate splits and paces for interval and tempo training - Track splits: Using GPS for track training is not great. This tool will convert a given pace to the target split of a full lap for each lane of a standard (IAAF) 400m track - Race Splits: Plan any race by breaking the distance and target race time down by kilometer or mile markers - Evaluate or plan a race by factoring in elevation, elevation gain/loss, temperature and humidity (dew point) - Convert any pace from minutes per mile to minutes per km and vice versa - Calculate the right speeds to set treadmills to, based on pace - Calculate age graded performance Works in both metric and imperial system.

Screenshots

V.O24 screens
Runner's Tools4 screens

Verdict

The call

The clearest difference is update cadence: V.O2 at every 6 days against Runner's Tools's every 38 months. V.O2 also leads on ratings volume (6.2K vs 3). Runner's Tools's advantage is review sentiment (100% vs 71%) and monetization model (free vs free with in-app purchases). On price, rating, ads 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 Runner's Tools 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

On the App Store both sit at effectively the same score — 4.9 for V.O2 against 5.0 for Runner's Tools. That said, the two scores are not equally well evidenced: V.O2 has 6.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 71% of V.O2's written reviews are positive against 100% of Runner's Tools's.

UpkeepUpdate frequency

V.O2 ships an update every 6 days, Runner's Tools every 38 months. The most recent releases landed on September 23, 2026 and September 3, 2026 respectively.

Scorecard4 real differences · 6 level
V.O2 versus Runner's Tools: the parameters behind the verdict, then further details
ParameterV.O2Runner's Tools
PriceFreeFree
Rating4.9 (6.2K ratings)5.0 (3 ratings) — better
Positive reviews70.7% of reviews100.0% of reviews — better
Number of ratings6.2K — better3
Update frequencyEvery 6 days — betterEvery 38 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size144 MB2 MB
Age rating4+4+
DeveloperThe Run SMART Project, LLCFrederic Bacro

Customer experience

V.O2

All ratings6,205 ratings
Positive97.6%
Neutral0.9%
Negative1.5%
Written reviews174 reviews
Positive70.7%
Neutral8.0%
Negative21.3%

Runner's Tools

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Runner's Tools

Not enough reviews yet to summarise bugs or requests.

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

Runner's Tools

One-time1
  • No Ads$0.99

Questions

Is V.O2 free?
V.O2 is free to download, with in-app purchases available.
Is Runner's Tools free?
Runner's Tools is free to download, with in-app purchases available.
Which has better reviews, V.O2 or Runner's Tools?
Runner's Tools is rated higher. V.O2 averages 4.9 out of 5 from 6.2K ratings, while Runner's Tools averages 5.0 from 3 ratings.
Do V.O2 or Runner's Tools have ads?
Neither V.O2 nor Runner's Tools shows ads.
Which is updated more often, V.O2 or Runner's Tools?
V.O2 ships an update every 6 days, and Runner's Tools every 38 months. Most recently, V.O2 was updated on September 23, 2026 and Runner's Tools on September 3, 2026.

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