# Eye DPI Test vs Check My Device

The clearest difference is rating: Check My Device at 4.5 against Eye DPI Test's 4.0. Check My Device also leads on update cadence (every 3 months vs every 25 months) and ratings volume (94 vs 2). Eye DPI Test's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Check My Device sells 3 in-app purchases, starting at $0.99 per 7 days. Eye DPI Test asks for nothing beyond the download.

Check My Device holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Check My Device has 94 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 67% of Eye DPI Test's written reviews are positive against 47% of Check My Device's, so the app with the better star average is not the one people write more warmly about.

Eye DPI Test ships an update every 25 months, Check My Device every 3 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Eye DPI Test | Check My Device |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/eye-dpi-test/id926046519/reviews) | **[4.5 (94 ratings)](https://appshunter.io/ios/app/check-my-device-40-plus-tests/id1296632315/reviews)** |
| Number of ratings | 2 | **94** |
| Positive reviews | **66.7% of reviews** | 47.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 35 MB |
| Requires iOS | **9.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandr Varaksa](https://appshunter.io/developer/478681813) | [Dropouts Technologies LLP](https://appshunter.io/developer/575481782) |

## What reviewers say

### Eye DPI Test

[App page](https://appshunter.io/ios/app/eye-dpi-test/id926046519)

This utility app helps you understand screen resolution and its impact on your vision. It explores concepts like 326 DPI and the perceived limits of screen or eye vision.

**Highlights:** Screen resolution analysis, Eye vision limit exploration, DPI concept explanation, Device compatibility check

**Features:** macOS Compatibility

**In-app purchases:** none


### Check My Device

[App page](https://appshunter.io/ios/app/check-my-device-40-plus-tests/id1296632315)

Thoroughly test your iPhone or iPad's display, sensors, connectivity, and other components. Ideal for verifying device functionality before buying, selling, or for long-term use.

**Highlights:** Screen and display tests, Multimedia component tests, Sensor diagnostics, Device parts testing, Connectivity checks, Warranty and damage checks

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Lifetime Discounted Unlock | $3.99 | one-time |
| Lifetime Unlock | $7.99 | one-time |


## Frequently asked questions

### Is Eye DPI Test free?

Eye DPI Test is free to download, with no in-app purchases.

### Is Check My Device free?

Check My Device is free to download, with in-app purchases available.

### Which has better reviews, Eye DPI Test or Check My Device?

Check My Device is rated higher. Eye DPI Test averages 4.0 out of 5 from 2 ratings, while Check My Device averages 4.5 from 94 ratings.

### Do Eye DPI Test or Check My Device have ads?

Check My Device shows ads; Eye DPI Test does not.

### Which is updated more often, Eye DPI Test or Check My Device?

Eye DPI Test ships an update every 25 months, and Check My Device every 3 months. Most recently, Eye DPI Test was updated on October 7, 2026 and Check My Device on October 24, 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.*