# Flex vs Go Athletic Club

The clearest difference is in-app purchases: Go Athletic Club at none against Flex's 2. Flex's advantage is update cadence (every 3 months vs every 6 months) and iOS requirement (13.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Flex sells 2 in-app purchases, starting at $13.99 per month. Go Athletic Club asks for nothing beyond the download.

Flex ships an update every 3 months, Go Athletic Club every 6 months. The most recent releases landed on October 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Flex | Go Athletic Club |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Size | 70 MB | 31 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CAPNKLUTCH](https://appshunter.io/developer/1772032590) | [Go Performance Lab LLC](https://appshunter.io/developer/1784431194) |

## What reviewers say

### Flex

[App page](https://appshunter.io/ios/app/flex-stretch/id6736611703)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $13.99 | per month |
| Premium Annual | $39.99 | per year |


### Go Athletic Club

[App page](https://appshunter.io/ios/app/go-athletic-club/id6739246393)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flex free?

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

### Is Go Athletic Club free?

Go Athletic Club is free to download, with no in-app purchases.

### Do Flex or Go Athletic Club have ads?

Neither Flex nor Go Athletic Club shows ads.

### Which is updated more often, Flex or Go Athletic Club?

Flex ships an update every 3 months, and Go Athletic Club every 6 months. Most recently, Flex was updated on October 30, 2026 and Go Athletic Club on October 9, 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.*