# Clear Vision Test vs Posturly

The clearest difference is ads: Clear Vision Test at none against Posturly's shown. Clear Vision Test also leads on update cadence (daily vs every 2 months) and iOS requirement (12.0 vs 26.0). On price, 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.

Clear Vision Test ships an update daily, Posturly every 2 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Clear Vision Test | Posturly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/posturly-sit-straight/id6758168460/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 2 months |
| Monetization | — | Free |
| Size | 35 MB | 8 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Alaattin Bedir](https://appshunter.io/developer/924813905) | [LimeLime Labs LLC](https://appshunter.io/developer/1002915290) |

## What reviewers say

### Clear Vision Test

[App page](https://appshunter.io/ios/app/clear-vision-test/id6746760296)

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

**In-app purchases:** none


### Posturly

[App page](https://appshunter.io/ios/app/posturly-sit-straight/id6758168460)

This app uses your AirPods to provide real-time feedback on your posture. It gently alerts you when you start to slouch during activities like working, studying, or gaming, helping you build better habits.

**Highlights:** Real-time posture tracking with AirPods, Gentle slouching alerts, Quick upright calibration, Background session operation, Posture score and session summary, Live Activity and widget support

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

**In-app purchases:** none


## Frequently asked questions

### Is Clear Vision Test free?

Clear Vision Test is free to download, with no in-app purchases.

### Is Posturly free?

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

### Do Clear Vision Test or Posturly have ads?

Posturly shows ads; Clear Vision Test does not.

### Which is updated more often, Clear Vision Test or Posturly?

Clear Vision Test ships an update daily, and Posturly every 2 months. Most recently, Clear Vision Test was updated on October 17, 2026 and Posturly on October 18, 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.*