# Stretching, Flexibility vs Glute Factory

The clearest difference is update cadence: Stretching, Flexibility at fortnightly against Glute Factory's monthly. Glute Factory's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stretching, Flexibility sells 4 in-app purchases, starting at $9.99 per month and Glute Factory sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Stretching, Flexibility ships an update fortnightly, Glute Factory monthly. The most recent releases landed on September 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Stretching, Flexibility | Glute Factory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/stretching-flexibility-flex/id698583549/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 75.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 46 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [App Ktchn Ltd](https://appshunter.io/developer/870718126) | [PROOF NUTRITION LTD OOD](https://appshunter.io/developer/1737594121) |

## What reviewers say

### Stretching, Flexibility

[App page](https://appshunter.io/ios/app/stretching-flexibility-flex/id698583549)

This app offers video-based flexibility and mobility routines to improve range of motion, reduce stiffness, and enhance posture. It provides guided exercises for specific body areas or full-body workouts, suitable for all fitness levels. Improve athletic performance, aid recovery, and reduce stress with daily routines.

**Highlights:** Video-based flexibility routines, Targeted mobility exercises, Full-body and area-specific workouts, Beginner to advanced progression, Posture correction, Stress reduction stretches, Post-workout recovery aid

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flex All Access | $9.99 | per month |
| Flex All Access | $34.99 | per year |
| Flex All Access | $34.99 | per year |
| Go Pro | $59.99 | one-time |


### Glute Factory

[App page](https://appshunter.io/ios/app/glute-factory/id6479944210)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $19.99 | per month |


## Frequently asked questions

### Is Stretching, Flexibility free?

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

### Is Glute Factory free?

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

### Do Stretching, Flexibility or Glute Factory have ads?

Neither Stretching, Flexibility nor Glute Factory shows ads.

### Which is updated more often, Stretching, Flexibility or Glute Factory?

Stretching, Flexibility ships an update fortnightly, and Glute Factory monthly. Most recently, Stretching, Flexibility was updated on September 7, 2026 and Glute Factory on September 23, 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.*