# Clear Vision Test vs Clench

The clearest difference is price: Clear Vision Test at Free against Clench's $0.99. Clear Vision Test also leads on update cadence (daily vs every 4 days) and iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Clear Vision Test is free to download; Clench costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Clear Vision Test ships an update daily, Clench every 4 days. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Clear Vision Test | Clench |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 days |
| Size | 35 MB | 41 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Alaattin Bedir](https://appshunter.io/developer/924813905) | [BanjoSoft](https://appshunter.io/developer/498841687) |

## What reviewers say

### Clear Vision Test

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Clench

[App page](https://appshunter.io/ios/app/clench/id6752355553)

**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 Clench free?

Clench costs $0.99, with no in-app purchases.

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

Neither Clear Vision Test nor Clench shows ads.

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

Clear Vision Test ships an update daily, and Clench every 4 days. Most recently, Clear Vision Test was updated on October 17, 2026 and Clench on October 15, 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.*