# 4k Weeks vs Flexius

The clearest difference is price: Flexius at Free against 4k Weeks's $1.99. Flexius also leads on iOS requirement (15.1 vs 18.4). 4k Weeks's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Flexius is free to download; 4k Weeks costs $1.99 up front. Flexius sells 2 in-app purchases, starting at $4.99 per month. 4k Weeks asks for nothing beyond the download.

## The numbers

| Metric | 4k Weeks | Flexius |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flexius/id6762490113/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 9 MB | 46 MB |
| Requires iOS | 18.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ALBERT DONAIRE ESCRIGAS](https://appshunter.io/developer/1805379390) | [George Levy](https://appshunter.io/developer/1893370819) |

## What reviewers say

### 4k Weeks

[App page](https://appshunter.io/ios/app/4k-weeks/id6744328745)

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

**In-app purchases:** none


### Flexius

[App page](https://appshunter.io/ios/app/flexius/id6762490113)

This guided stretching and mobility app helps users build consistent habits to improve flexibility and reduce stiffness. It offers timed routines with clear instructions, allowing users to easily follow along at home or the gym without needing to plan their sessions.

**Highlights:** Guided stretching routines, Timed stretches with instructions, Hold-to-start daily sessions, Routine setup based on goals, Weekly streak and progress tracking, Stretch catalog and custom builder

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Yearly subscription | $34.99 | per year |


## Frequently asked questions

### Is 4k Weeks free?

4k Weeks costs $1.99, with no in-app purchases.

### Is Flexius free?

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

### Do 4k Weeks or Flexius have ads?

Neither 4k Weeks nor Flexius shows ads.

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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.*