# PhysiaX vs Ankle Flex

PhysiaX and Ankle Flex are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

PhysiaX ships an update every 6 months, Ankle Flex every 5 months. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PhysiaX | Ankle Flex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Size | 46 MB | 10 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [PhysiaClinic](https://appshunter.io/developer/1794096608) | [Perry Hooker](https://appshunter.io/developer/1827290197) |

## What reviewers say

### PhysiaX

[App page](https://appshunter.io/ios/app/physiax/id6741421965)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Ankle Flex

[App page](https://appshunter.io/ios/app/ankle-flex/id6748759970)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PhysiaX free?

PhysiaX is free to download, with no in-app purchases.

### Is Ankle Flex free?

Ankle Flex is free to download, with no in-app purchases.

### Do PhysiaX or Ankle Flex have ads?

Neither PhysiaX nor Ankle Flex shows ads.

### Which is updated more often, PhysiaX or Ankle Flex?

PhysiaX ships an update every 6 months, and Ankle Flex every 5 months. Most recently, PhysiaX was updated on October 14, 2026 and Ankle Flex on October 28, 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.*