# Lean Body Academy Hub vs Retro Flex

Lean Body Academy Hub and Retro 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.

Lean Body Academy Hub ships an update monthly, Retro Flex every 6 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | Lean Body Academy Hub | Retro Flex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 52 MB | 40 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Joshua Bell](https://appshunter.io/developer/1709671278) | [Fit Cloud Technology Limited](https://appshunter.io/developer/1079311129) |

## What reviewers say

### Lean Body Academy Hub

[App page](https://appshunter.io/ios/app/lean-body-academy-hub/id1608229891)

**Features:** macOS Compatibility

**In-app purchases:** none


### Retro Flex

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lean Body Academy Hub free?

Lean Body Academy Hub is free to download, with no in-app purchases.

### Is Retro Flex free?

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

### Do Lean Body Academy Hub or Retro Flex have ads?

Neither Lean Body Academy Hub nor Retro Flex shows ads.

### Which is updated more often, Lean Body Academy Hub or Retro Flex?

Lean Body Academy Hub ships an update monthly, and Retro Flex every 6 weeks. Most recently, Lean Body Academy Hub was updated on October 27, 2026 and Retro Flex on October 27, 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.*