# Ankle Flex vs SmartGrip

The clearest difference is in-app purchases: Ankle Flex at none against SmartGrip's 2. SmartGrip's advantage is update cadence (every 4 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SmartGrip sells 2 in-app purchases, starting at $3.99 per 7 days. Ankle Flex asks for nothing beyond the download.

Ankle Flex ships an update every 5 months, SmartGrip every 4 weeks. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Ankle Flex | SmartGrip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smartgrip-grip-tracker/id6754554560/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 44 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Perry Hooker](https://appshunter.io/developer/1827290197) | [Georges Ryan Abi Sleiman](https://appshunter.io/developer/1848832163) |

## What reviewers say

### Ankle Flex

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartGrip

[App page](https://appshunter.io/ios/app/smartgrip-grip-tracker/id6754554560)

Develop superior grip strength with personalized, progressive exercises. Track your progress against clear benchmarks and build a stronger body through consistent training.

**Highlights:** Personalized 4-week programs, Progressive challenges, Dead Hang exercise, Farmer Carry exercise, Clear benchmarks, Repeatable sessions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium Yearly | $34.99 | per year |


## Frequently asked questions

### Is Ankle Flex free?

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

### Is SmartGrip free?

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

### Do Ankle Flex or SmartGrip have ads?

Neither Ankle Flex nor SmartGrip shows ads.

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

Ankle Flex ships an update every 5 months, and SmartGrip every 4 weeks. Most recently, Ankle Flex was updated on October 12, 2026 and SmartGrip on October 5, 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.*