# VO2 Max Trainer vs Plank Trainer

The clearest difference is review sentiment: Plank Trainer at 100% against VO2 Max Trainer's 0%. Plank Trainer also leads on in-app purchases (none vs 7). VO2 Max Trainer's advantage is price (Free vs $0.99) and device support (3 vs 1). On update cadence, ads and iOS requirement there is nothing between them.

VO2 Max Trainer is free to download; Plank Trainer costs $0.99 up front. VO2 Max Trainer sells 7 in-app purchases, starting at $1.99 per 7 days. Plank Trainer asks for nothing beyond the download.

VO2 Max Trainer ships an update weekly, Plank Trainer every 6 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | VO2 Max Trainer | Plank Trainer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/vo2-max-trainer-hiit-zone-2/id6736629740/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 286 MB | 33 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Floch](https://appshunter.io/developer/1772752224) | [Christopher Stephan](https://appshunter.io/developer/1186986591) |

## What reviewers say

### VO2 Max Trainer

[App page](https://appshunter.io/ios/app/vo2-max-trainer-hiit-zone-2/id6736629740)

Measure, track, and improve your VO2 Max with a variety of fitness tests and personalized training plans. Features include HIIT and Zone 2 workouts, progress tracking, and integration with Apple Watch and HealthKit.

**Highlights:** Measure VO2 Max with 5 fitness tests, HIIT and Zone 2 training, Track progress and compare to leaderboards, Apple Watch integration, HealthKit integration, Training readiness scoring, Fitness age calculation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VO2_Weekly | $1.99 | per 7 days |
| VO2_Monthly | $1.99 | per month |
| VO2_Annually | $14.99 | per year |
| VO2_Lifetime_Upgrade | $9.99 | one-time |
| VO2_Lifetime_Upgrade2 | $14.99 | one-time |
| VO2_Lifetime | $19.99 | one-time |
| VO2_Lifetime2 | $29.99 | one-time |


### Plank Trainer

[App page](https://appshunter.io/ios/app/plank-trainer/id6756194595)

This app helps you build core strength through guided plank exercises. It automatically adjusts difficulty to keep you challenged and motivated, tracking your progress with detailed statistics and social features to train with friends.

**Highlights:** Smart automatic progression, Distraction-free design, Daily streaks and statistics, Train with friends in Squads, Share achievements, One-time purchase

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VO2 Max Trainer free?

VO2 Max Trainer is free to download, with in-app purchases available.

### Is Plank Trainer free?

Plank Trainer costs $0.99, with no in-app purchases.

### Do VO2 Max Trainer or Plank Trainer have ads?

Neither VO2 Max Trainer nor Plank Trainer shows ads.

### Which is updated more often, VO2 Max Trainer or Plank Trainer?

VO2 Max Trainer ships an update weekly, and Plank Trainer every 6 days. Most recently, VO2 Max Trainer was updated on October 15, 2026 and Plank Trainer on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*