Comparison

V.O2 vs hollarhype

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 personalized adaptive training plans for runners of all levels. It assesses your fitness, syncs with popular GPS devices and wearables, and allows communication with coaches for real-time adjustments. Achieve measurable improvement with intelligent, scientifically-validated training.

Highlights
  • Adaptive training plans
  • VDOT fitness assessment
  • Personalized training paces
  • Sync with Apple Health, Garmin, Strava
  • Real-time guidance on wearables
  • Coach communication and 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

hollarhype

Send and receive real-time voice messages to friends and groups. This app offers hands-free, instant audio communication for support, motivation, and staying connected without traditional texting.

Highlights
  • Real-time voice messages
  • Private groups and communities
  • Hands-free playback
  • Instant notifications
  • No replying pressure
  • Team and organization features
Features
Read full description

Hollarhype lets you send and receive real-time voice messages ("hypes") from friends—right when you need it most. No texting. No AI. Just real voices showing up at the right moment. HOW IT WORKS: - Join private groups or larger communities—or create your own - Go live anytime you want to hear real-time voice messages (“hypes”) - Your group(s) get instant notifications - Friends send you real-time voice notes - Messages play automatically over your music, completely hands-free WHY PEOPLE LOVE HOLLARHYPE: - Hearing the voices of your people hits at exactly the right moment - Hands-free, real-time support from friends, family, and your community - Built for more than fitness—anyone can use it - No inbox, no replying, no pressure - Invite all your friends for free - A simple way to stay connected without constant texting - Hyping up others feels awesome (and surprisingly convenient!) GREAT FOR: - Teams training together for endurance events or charity races - Long training cycles: early mornings, late nights, long runs - Race preparation: marathon, half marathon, 10K, and endurance events - Race day motivation and mid-run encouragement—like having friends and family right there with you - Getting back into running after time off or injury - Physical therapy and injury recovery support - Emotional support and mental wellness check-ins - Staying connected with family and friends across long distances - Medical and health support communities - Long commutes and everyday moments that could use a boost - Any moment where a surprise "you got this" would help—people get creative with it. If you come up with something new, we'd love to hear about it! FOR TEAMS AND ORGANIZATIONS: Hollarhype helps groups build real community through shared moments: - Boost athlete energy during races and critical moments - Keep teams and supporters engaged throughout long training cycles - Involve cause heroes in meaningful ways - Spotlight sponsors inside the app - Connect app activity to fundraising pages CONTACT: team@hollarhype.com Hype it forward

Screenshots

V.O24 screens
hollarhype4 screens

Verdict

The call

The clearest difference is in-app purchases: hollarhype at none against V.O2's 10. hollarhype also leads on review sentiment (90% vs 71%). V.O2's advantage is ratings volume (6.3K vs 144) and update cadence (weekly vs every 2 weeks). On price, rating, ads and device support 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 10 in-app purchases, starting at $12.99 per month. hollarhype asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for V.O2 against 4.9 for hollarhype. That said, the two scores are not equally well evidenced: V.O2 has 6.3K ratings behind it against 144, 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 90% of hollarhype's.

UpkeepUpdate frequency

V.O2 ships an update weekly, hollarhype every 2 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
V.O2 versus hollarhype: the parameters behind the verdict, then further details
ParameterV.O2hollarhype
PriceFreeFree
Rating4.9 (6.3K ratings) — better4.9 (144 ratings)
Positive reviews71.0% of reviews90.5% of reviews — better
Number of ratings6.3K — better144
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.616.4 — better
Further details — not scored
Size142 MB118 MB
Age rating4+4+
DeveloperThe Run SMART Project, LLCHollarhype Co

Customer experience

V.O2

All ratings6,304 ratings
Positive97.6%
Neutral0.9%
Negative1.4%
Written reviews176 reviews
Positive71.0%
Neutral8.0%
Negative21.0%

hollarhype

All ratings142 ratings
Positive97.9%
Neutral0.0%
Negative2.1%
Written reviews21 reviews
Positive90.5%
Neutral0.0%
Negative9.5%

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

hollarhype

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

V.O2

Subscriptions2
  • Adaptive Training Subscription14 Days trial$12.991 Month
  • Adaptive Training - Annual14 Days trial$99.991 Year
One-time8
  • Base/Fitness - 8 weeks$44.99
  • Half Marathon - 12 weeks$54.99
  • 10 Km - 12 weeks$54.99
Show 5 more
  • 5 Km - 12 weeks$54.99
  • Marathon - 15 weeks$69.99
  • Half Marathon - 15 weeks$69.99
  • Marathon - 18 weeks$79.99
  • Marathon - 24 weeks$99.99
None

hollarhype

No in-app purchases

Questions

Is V.O2 free?
V.O2 is free to download, with in-app purchases available.
Is hollarhype free?
hollarhype is free to download, with no in-app purchases.
Which has better reviews, V.O2 or hollarhype?
V.O2 is rated higher. V.O2 averages 4.9 out of 5 from 6.3K ratings, while hollarhype averages 4.9 from 144 ratings.
Do V.O2 or hollarhype have ads?
Neither V.O2 nor hollarhype shows ads.
Which is updated more often, V.O2 or hollarhype?
V.O2 ships an update weekly, and hollarhype every 2 weeks. Most recently, V.O2 was updated on November 1, 2026 and hollarhype on November 2, 2026.

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