# Retro Flex vs SPS FitHub

The clearest difference is update cadence: Retro Flex at every 6 weeks against SPS FitHub's every 5 months. On price, ads, 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.

Retro Flex ships an update every 6 weeks, SPS FitHub every 5 months. Both last shipped on October 13, 2026.

## The numbers

| Metric | Retro Flex | SPS FitHub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Size | 40 MB | 56 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Fit Cloud Technology Limited](https://appshunter.io/developer/1079311129) | [TeamUp Sports](https://appshunter.io/developer/1449504626) |

## What reviewers say

### Retro Flex

[App page](https://appshunter.io/ios/app/retro-flex/id6476487882)

**Features:** macOS Compatibility

**In-app purchases:** none


### SPS FitHub

[App page](https://appshunter.io/ios/app/sps-fithub/id6755516506)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Retro Flex free?

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

### Is SPS FitHub free?

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

### Do Retro Flex or SPS FitHub have ads?

Neither Retro Flex nor SPS FitHub shows ads.

### Which is updated more often, Retro Flex or SPS FitHub?

Retro Flex ships an update every 6 weeks, and SPS FitHub every 5 months. Most recently, Retro Flex was updated on October 13, 2026 and SPS FitHub on October 13, 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.*