# Stillness Watch vs Just VO2 Max

The clearest difference is price: Just VO2 Max at Free against Stillness Watch's $0.99. Just VO2 Max also leads on update cadence (every 6 days vs every 6 months). Stillness Watch's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Just VO2 Max is free to download; Stillness Watch costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stillness Watch ships an update every 6 months, Just VO2 Max every 6 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stillness Watch | Just VO2 Max |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/just-vo2-max/id6790672784/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 6 days** |
| Monetization | — | Ad-supported |
| Size | 4 MB | 14 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Tocapp Games S.L.](https://appshunter.io/developer/1382683382) | [Cuprea s.r.o.](https://appshunter.io/developer/6790557326) |

## What reviewers say

### Stillness Watch

[App page](https://appshunter.io/ios/app/stillness-watch-focus-timer/id6670392801)

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

**In-app purchases:** none


### Just VO2 Max

[App page](https://appshunter.io/ios/app/just-vo2-max/id6790672784)

Displays your most recent VO2 Max reading from Apple Health directly on your Apple Watch face. It refreshes automatically when new data is available after your workout, keeping your health information private and on your device.

**Highlights:** VO2 Max display, Apple Health integration, Automatic refresh, On-device data storage, Read-only data access

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Stillness Watch free?

Stillness Watch costs $0.99, with no in-app purchases.

### Is Just VO2 Max free?

Just VO2 Max is free to download, with no in-app purchases.

### Do Stillness Watch or Just VO2 Max have ads?

Just VO2 Max shows ads; Stillness Watch does not.

### Which is updated more often, Stillness Watch or Just VO2 Max?

Stillness Watch ships an update every 6 months, and Just VO2 Max every 6 days. Most recently, Stillness Watch was updated on November 8, 2026 and Just VO2 Max on October 31, 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.*