# Easy Eye vs K

The clearest difference is rating: K at 5.0 against Easy Eye's 4.5. K also leads on in-app purchases (none vs 1) and iOS requirement (8.0 vs 17.0). Easy Eye's advantage is update cadence (monthly vs every 14 months) and ratings volume (4 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Easy Eye sells 1 one-off in-app purchase. K asks for nothing beyond the download.

K holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Easy Eye ships an update monthly, K every 14 months. The most recent releases landed on September 22, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Easy Eye | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/easy-eye/id394384745/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k-d-test-pro-reading/id1068456746/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 14 months |
| Monetization | Free | Free |
| Size | 1.1 GB | 57 MB |
| Requires iOS | 17.0 | **8.0** |
| Devices | iPad | iPad |
| Age rating | 12+ | 12+ |
| Developer | [IKONION](https://appshunter.io/developer/315330021) | [King-Devick Test, LLC](https://appshunter.io/developer/424793545) |

## What reviewers say

### Easy Eye

[App page](https://appshunter.io/ios/app/easy-eye/id394384745)

This app serves as a patient education tool for eye care professionals. It features a 3D eye model for interactive demonstrations, a vision simulator to illustrate corrections and disturbances, and tools to visualize visual field defects and light effects like halos and glare.

**Highlights:** Interactive 3D eye model, Vision simulator for corrections, Halo & glare simulation, Visual field defect simulator, 3D animations for explanations, Drawing comments on 3D model

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Easy Eye Premium | $99.99 | one-time |


### K

[App page](https://appshunter.io/ios/app/k-d-test-pro-reading/id1068456746)

This application facilitates the administration of a rapid eye movement test for reading assessment. It compares performance against age-related norms for individuals aged 6-14+, helping to identify potential candidates for reading intervention programs.

**Highlights:** Reads numbers from test cards, Measures speed and accuracy, Compares results to age norms, Identifies candidates for intervention, Administered in under two minutes, Validated by peer-reviewed studies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Easy Eye free?

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

### Is K free?

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

### Which has better reviews, Easy Eye or K?

K is rated higher. Easy Eye averages 4.5 out of 5 from 4 ratings, while K averages 5.0 from 1 ratings.

### Do Easy Eye or K have ads?

Neither Easy Eye nor K shows ads.

### Which is updated more often, Easy Eye or K?

Easy Eye ships an update monthly, and K every 14 months. Most recently, Easy Eye was updated on September 22, 2026 and K on September 30, 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.*