PEAKVO2 vs VO2Max Hiit Workout: Wrist Training or a Free Phone App?
Run these workouts on your iPhone, or hands-free on Apple Watch. Get PEAKVO2 PEAKVO2 and VO2Max Hiit Workout both run science-based VO2 max protocols like the Norwegian 4x4 and Tabata, and both let you build custom intervals, so they overlap more than most. VO2Max Hiit Workout is a free protocol app for iPhone and iPad. PEAKVO2 runs its protocols on Apple Watch with heart rate zones and VO2 max tracking. Pick VO2Max Hiit Workout for a free phone and iPad app; pick PEAKVO2 for wrist-native training with heart rate zones.
This is a closer match than most comparisons, because both apps are built around the same evidence-based protocols and both let you customize them. VO2Max Hiit Workout is a genuinely good, free, precise app. So the honest question is narrow: do you want the protocols on your phone or iPad for free, or the same protocols guided on your wrist with heart rate zones and a tracked trend?
PEAKVO2 vs VO2Max Hiit Workout at a Glance
| PEAKVO2 | VO2Max Hiit Workout | |
|---|---|---|
| Shared protocols | Norwegian 4x4, Tabata | Norwegian 4x4, Tabata |
| Extra protocols | HIIT 30/30, Billat, Ronnestad, VO2 3x3 and 5x3, Tempo | Wingate, conventional 60/60 |
| Custom intervals | Yes, build your own | Yes, adjust work, rest, rounds, intensity |
| Apple Watch | Runs on the wrist, no phone needed | Not advertised; iPhone and iPad |
| Heart rate zones | Tied to each protocol | Not advertised |
| VO2 max trend | Yes, tracked over time | Not stated |
| Field test | Built-in beep and Cooper tests | Cooper and half Cooper |
| Platform | iPhone and Apple Watch | iPhone, iPad, Mac, Vision |
| Price | 3 workouts free, then $0.99/mo, $9.99/yr, $19.99 lifetime | Free |
What VO2Max Hiit Workout Is
VO2Max Hiit Workout is a free, science-based protocol app built by athletes and modeled on the research. It ships the Norwegian 4x4, Tabata (20/10), Wingate (30/240), and a conventional 60/60, and lets you fully customize any of them, adjusting work, rest, rounds, and intensity. The developer highlights timers precise to the second and low battery use, and the app adds a Cooper test and half Cooper for a VO2 max estimate. It runs on iPhone and iPad. If you want a free, no-nonsense, customizable app for VO2 max protocols, including Wingate, it is a strong choice.
What PEAKVO2 Is
PEAKVO2 is an interval training app for iPhone and Apple Watch, built around VO2 max. It runs eight validated protocols, the Norwegian 4x4, Tabata, HIIT 30/30, Billat 30/30, Ronnestad 30/15, VO2 Max 3x3, VO2 Max 5x3, and Tempo Run, with full-screen color-coded phases, automatic transitions, a haptic tap at each switch, and the heart rate zones each protocol depends on, and it lets you build your own custom intervals too. It runs natively on Apple Watch with no phone needed, tracks your VO2 max trend over time, and includes built-in beep and Cooper field tests. It is a training app, not a testing service. Its focus is running these protocols well on your wrist and showing the number move.
The Core Difference: A Free Phone App vs Wrist-Native Training
Because the protocol libraries overlap and both let you customize, the difference comes down to where and how you run them. VO2Max Hiit Workout runs on iPhone and iPad, is free, and lets you reshape any protocol. That combination is its strength, and if you train from your phone and like tweaking the numbers, it fits well.
PEAKVO2 puts the wrist first. The same core protocols run natively on Apple Watch with haptic cues and heart rate zones, so you can train hands-free with the phone away, and your VO2 max trend is tracked over time. Both apps let you customize and both offer a Cooper-based field test, so neither of those is the deciding line; the deciding line is wrist guidance, heart rate zones, and tracking on one side, and a free iPhone and iPad app on the other.
Who Each One Is For
- Choose VO2Max Hiit Workout if you want a free, customizable protocol app on iPhone or iPad, you like adjusting work and rest yourself, and you want protocols like Wingate.
- Choose PEAKVO2 if you want the core VO2 max protocols run on your Apple Watch, guided by heart rate zones, with your VO2 max trend tracked over time.
- Either works if you just want the Norwegian 4x4 and Tabata done accurately with the option to customize; the tie-breakers are wrist support, heart rate zones, and tracking on one side, and a free iPhone and iPad app on the other.
Build your aerobic engine with PEAKVO2
Guided VO2 max protocols, the Norwegian 4x4, Tabata, REHIT, and more, on iPhone and Apple Watch, with heart rate zones, built-in beep and Cooper tests, and your VO2 max tracked over time. Three workouts free.
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