# Don't Panic vs Just VO2 Max

The clearest difference is ads: Don't Panic at none against Just VO2 Max's shown. Just VO2 Max's advantage is iOS requirement (17.0 vs 26.2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Don't Panic ships an update weekly, Just VO2 Max every 6 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Don't Panic | Just VO2 Max |
| --- | --- | --- |
| Price | Free | 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 | Weekly | **Every 6 days** |
| Monetization | — | Ad-supported |
| Size | 10 MB | 14 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Helmrich](https://appshunter.io/developer/1891636477) | [Cuprea s.r.o.](https://appshunter.io/developer/6790557326) |

## What reviewers say

### Don't Panic

[App page](https://appshunter.io/ios/app/dont-panic-break-the-circle/id6761820322)

**Features:** macOS Compatibility, 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 Don't Panic free?

Don't Panic is free to download, with no in-app purchases.

### Is Just VO2 Max free?

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

### Do Don't Panic or Just VO2 Max have ads?

Just VO2 Max shows ads; Don't Panic does not.

### Which is updated more often, Don't Panic or Just VO2 Max?

Don't Panic ships an update weekly, and Just VO2 Max every 6 days. Most recently, Don't Panic was updated on October 31, 2026 and Just VO2 Max on October 31, 2026.

---

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