# Ankle Flex vs BounceBack Rehab

The clearest difference is in-app purchases: Ankle Flex at none against BounceBack Rehab's 1. BounceBack Rehab's advantage is update cadence (every 3 weeks vs every 5 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. BounceBack Rehab sells 1 one-off in-app purchase. Ankle Flex asks for nothing beyond the download.

Ankle Flex ships an update every 5 months, BounceBack Rehab every 3 weeks. Both last shipped on November 12, 2026.

## The numbers

| Metric | Ankle Flex | BounceBack Rehab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 10 MB | 160 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Perry Hooker](https://appshunter.io/developer/1827290197) | [Dash Rehabilitation Ventures LLC](https://appshunter.io/developer/1844914988) |

## What reviewers say

### Ankle Flex

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

**Features:** macOS Compatibility

**In-app purchases:** none


### BounceBack Rehab

[App page](https://appshunter.io/ios/app/bounceback-rehab/id6753770498)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personalized Rehab Plan | $19.99 | one-time |


## Frequently asked questions

### Is Ankle Flex free?

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

### Is BounceBack Rehab free?

BounceBack Rehab is free to download, with in-app purchases available.

### Do Ankle Flex or BounceBack Rehab have ads?

Neither Ankle Flex nor BounceBack Rehab shows ads.

### Which is updated more often, Ankle Flex or BounceBack Rehab?

Ankle Flex ships an update every 5 months, and BounceBack Rehab every 3 weeks. Most recently, Ankle Flex was updated on November 12, 2026 and BounceBack Rehab on November 12, 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.*