# Stretch AI vs Form Factor

The clearest difference is in-app purchases: Form Factor at none against Stretch AI's 3. Form Factor also leads on update cadence (fortnightly vs every 3 months). Stretch AI's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Stretch AI sells 3 in-app purchases, starting at $9.99 per month. Form Factor asks for nothing beyond the download.

Stretch AI ships an update every 3 months, Form Factor fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Stretch AI | Form Factor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (14 ratings)](https://appshunter.io/ios/app/stretch-ai-flex-and-mobility/id6749923076/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Subscription | — |
| Size | 21 MB | 8 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ISO Labs LLC](https://appshunter.io/developer/1783885318) | [Ariel Tyson](https://appshunter.io/developer/1769841120) |

## What reviewers say

### Stretch AI

[App page](https://appshunter.io/ios/app/stretch-ai-flex-and-mobility/id6749923076)

This app creates personalized stretching routines to improve posture, flexibility, and overall body wellness. Answer a few questions about your daily routine and focus areas to receive an instant, customized plan. It guides you through stretches without guesswork, adapting to your specific needs.

**Highlights:** Personalized stretching routines, Posture improvement, Increased flexibility, Customized daily plans, Guided stretch instructions, Adaptive routines

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $29.99 | per year |
| Yearly | $29.99 | per year |


### Form Factor

[App page](https://appshunter.io/ios/app/form-factor/id6759933985)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stretch AI free?

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

### Is Form Factor free?

Form Factor is free to download, with no in-app purchases.

### Do Stretch AI or Form Factor have ads?

Neither Stretch AI nor Form Factor shows ads.

### Which is updated more often, Stretch AI or Form Factor?

Stretch AI ships an update every 3 months, and Form Factor fortnightly. Most recently, Stretch AI was updated on October 24, 2026 and Form Factor on October 25, 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.*