# VO2 Max Training - PEAKVO2 — Test & Improve with Intervals

> VO2 max interval training app with science-backed protocols and activity tracking. (iPhone/iPad app by Cristian Serb.)

- Source: https://appshunter.io/ios/app/vo2-max-training-peakvo2/id6532617265 (this page in markdown: same URL + `.md`)
- Developer: [Cristian Serb](https://appshunter.io/developer/294833680)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Rating: 4.60/5 from 7 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 16 MB
- Languages: American English, Czech, Danish, French (France), German (Germany), Hebrew, Indonesian, Italian, Japanese, Polish and 2 more
- Released: 2024-12-18
- Data updated: 2026-11-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/vo2-max-training-peakvo2/id6532617265/reviews.md

## What is VO2 Max Training?

PEAKVO2 is a VO2 max training app built around the interval protocols that actually move the needle:
Norwegian 4x4, Tabata, HIIT 30/30, and more.

Pick a workout, press start, and the app guides you through every phase: warm-up, work intervals, recovery, and cooldown.

Why VO2 max?
VO2 max is the single best predictor of cardiovascular fitness and long-term health. Improving it doesn't require guesswork, it requires the right intervals, done consistently. PEAKVO2 gives you both.

What's included:
24 science-backed interval protocols, including the Norwegian 4x4, Tabata, and HIIT 30/30
Build your own custom interval workouts
Color-coded workout timer with automatic phase transitions
Activity tracking with streak, year in review, and training minutes
Works with running, cycling, rowing, and indoor cardio

Free to start. 4 workouts are yours forever — no strings attached. Unlock all protocols, custom workouts, and full activity tracking with a subscription or one-time lifetime purchase.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Science-backed interval protocols (Norwegian 4x4, Tabata, HIIT)
- Color-coded workout timer with phase transitions
- Activity tracking with streaks and progress
- Supports running, cycling, rowing, and indoor cardio
- Fitness age estimation

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Unlimited | $0.99 | per month |
| Unlimited | $8.99 | per year |
| Unlimited | $4.99 | per 3 months |
| Unlimited | $11.99 | per 6 months |
| Unlimited | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $17.99 | one-time |


## Is VO2 Max Training safe?

Not enough ratings yet to assess VO2 Max Training.

## Is VO2 Max Training legit?

VO2 Max Training - PEAKVO2 appears to be a legitimate app. The AppsHunter Legitimacy Score for VO2 Max Training is 83 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/vo2-max-training-peakvo2/id6532617265/reviews.md

### 5/5 — Getting It Going

*2026-10-26*

I’m so excited to use this app! I’ve heard great things and I look forward to my improved and healthier physical self!

### 5/5 — It makes me focus on my workouts, AMAZING !!!

*2025-07-12, version 2.1.3*

It’s hard to find a good app to help you with workouts and motivate you to keep your body healthy, this one is perfect!

### 5/5 — Amazing

*2025-07-12, version 2.1.3*

It helped me to know my VO2 max even though I don’t own any smartwatch. The workouts are so short that’s is easy to add them to your weekly routine.

## Frequently asked questions about VO2 Max Training

### What is PEAKVO2's VO2 max training?

PEAKVO2 offers interval training protocols like Norwegian 4x4, Tabata, and HIIT 30/30 designed to improve your VO2 max, a key indicator of cardiovascular fitness and health. The app guides you through each phase of the workout.

### What types of workouts does PEAKVO2 support?

PEAKVO2 supports a variety of cardio activities including running, cycling, rowing, and indoor cardio machines. It provides structured intervals for each.

### How much does PEAKVO2 cost?

PEAKVO2 is free to try with your first 3 workouts. Unlimited access can be unlocked with a one-time purchase, with options ranging from $2.99/month to $22.99/year. There are no subscriptions.

### Does PEAKVO2 have ads?

No, PEAKVO2 is ad-free. The app focuses on providing a clean workout experience without interruptions from advertisements.

### What devices does PEAKVO2 work on?

PEAKVO2 is currently supported on iPhone. It was last updated on March 26, 2026, with version 3.0.2.

### Can I track my progress with PEAKVO2?

Yes, PEAKVO2 includes activity tracking features that monitor your workout streaks, VO2 max progress, and total training minutes. This helps you visualize your improvements over time.

### What is the age rating for PEAKVO2?

PEAKVO2 has an age rating of 4+ on the App Store, making it suitable for a wide range of users interested in improving their fitness.

### Does PEAKVO2 offer a free trial?

Yes, PEAKVO2 offers a free trial period for some of its subscription plans. For example, the $3.99/month plan includes a 7-day free trial.

## Version history (last 5 releases)

### 6.4.1 — 2026-10-30

Bugfixes

### 6.4.0 — 2026-10-24

Your workout keeps running when your phone is locked, so countdown beeps carry on and the lock screen stays current.
The lock screen shows each phase in its color and, with a heart rate sensor, your heart rate with Push, In range or Ease off.
A new target bar shows where your heart rate sits in your range during every work interval.
Workout overviews now explain their colors, and indoor workouts no longer show an empty pace.

### 6.3.1 — 2026-10-09

Small improvements.

### 6.3.0 — 2026-10-07

Workouts you save now always count toward your activity, streak and totals, even without Apple Health.

New: choose your heart rate sensor. PEAKVO2 connects only to the one you pick. You find it on every workout page and in Settings.

One Health permission request instead of several, plus smaller fixes.

### 6.2.0 — 2026-09-16

Your weekly plan now shows your number and where it came from, and it can read a VO2 max that Apple Health already has. A new morning card reads last night and suggests what to do today. You can start the plan over, and your test results are visible and removable where you took them.

## Apps similar to VO2 Max Training

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [12 Minute VO2 Max](https://appshunter.io/ios/app/12-minute-vo2-max/id6745093199) | 5.0 (4) | Free | Health & Fitness |
| [VO2 Max Pro: Track Fitness Age](https://appshunter.io/ios/app/vo2-max-pro-track-fitness-age/id6740225781) | 4.4 (56) | Free | Health & Fitness |
| [Cardiolytics: VO2 Max Health](https://appshunter.io/ios/app/cardiolytics-vo2-max-health/id6749484835) | 4.2 (19) | Free | Health & Fitness |
| [VO2Max Training](https://appshunter.io/ios/app/vo2max-training/id6751254440) | 4.5 (8) | Free | Health & Fitness |
| [VO2 Max Trainer: HIIT, Zone 2](https://appshunter.io/ios/app/vo2-max-trainer-hiit-zone-2/id6736629740) | 4.0 (4) | Free | Health & Fitness |
| [VO2 max Hero - AI Tracker](https://appshunter.io/ios/app/vo2-max-hero-ai-tracker/id6745514867) | 5.0 (1) | Free | Health & Fitness |

## More apps by Cristian Serb

- [Remember Me? *lite](https://appshunter.io/ios/app/remember-me-lite/id294833677)
- [Remember Me? *pro](https://appshunter.io/ios/app/remember-me-pro/id382008584)
- [BeepRunner: Pacer & Beep Test](https://appshunter.io/ios/app/beeprunner-pacer-and-beep-test/id6760191894)
- [RockScan - Rock Scan & ID](https://appshunter.io/ios/app/rockscan-rock-scan-and-id/id6761328525)
- [RoguePunch: Habit Tracker](https://appshunter.io/ios/app/roguepunch-habit-tracker/id6805973050)

All apps by Cristian Serb: https://appshunter.io/developer/294833680

## Related topics

[vo2max training](https://appshunter.io/ios/topics/vo2max-training) · [vo2max hiit workout](https://appshunter.io/ios/topics/vo2max-hiit-workout)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-04.*