# Test & Check for iPhone vs NSYS

The clearest difference is review sentiment: Test & Check for iPhone at 75% against NSYS's 0%. Test & Check for iPhone also leads on rating (3.9 vs 2.7) and ratings volume (36 vs 7). NSYS's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Test & Check for iPhone sells 1 one-off in-app purchase. NSYS asks for nothing beyond the download.

Test & Check for iPhone holds the better App Store score, 3.9 against 2.7. That said, the two scores are not equally well evidenced: Test & Check for iPhone has 36 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 75% of Test & Check for iPhone's written reviews are positive against 0% of NSYS's.

Test & Check for iPhone ships an update every 3 months, NSYS every 2 months. The most recent releases landed on September 3, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Test & Check for iPhone | NSYS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (36 ratings)](https://appshunter.io/ios/app/test-and-check-for-iphone/id1022281157/reviews)** | [2.7 (7 ratings)](https://appshunter.io/ios/app/nsys-test/id1448501054/reviews) |
| Number of ratings | **36** | 7 |
| Positive reviews | **74.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 29 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Prasomsak Khunmuen](https://appshunter.io/developer/636412127) | [Grigoriy Glazman](https://appshunter.io/developer/1448501053) |

## What reviewers say

### Test & Check for iPhone

[App page](https://appshunter.io/ios/app/test-and-check-for-iphone/id1022281157)

Verify the functionality of your iPhone or iPad with comprehensive hardware tests. Check screen, sensors, multimedia, and connectivity to ensure optimal performance. Also provides detailed device specifications and system status monitoring.

**Highlights:** Comprehensive hardware testing, Screen functionality checks, Sensor verification, Multimedia component tests, Connectivity status, Device information and system monitoring

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### NSYS

[App page](https://appshunter.io/ios/app/nsys-test/id1448501054)

This utility app tests your knowledge of device functions. It simulates actions like making calls, connecting to Wi-Fi, and using sensors, cameras, and audio. It's designed to verify your understanding of how these features work.

**Highlights:** Simulates call functionality, Tests Wi-Fi connection, Verifies button interactions, Assesses sensor usage, Checks camera functionality, Evaluates audio recording/listening

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Test & Check for iPhone free?

Test & Check for iPhone is free to download, with in-app purchases available.

### Is NSYS free?

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

### Which has better reviews, Test & Check for iPhone or NSYS?

Test & Check for iPhone is rated higher. Test & Check for iPhone averages 3.9 out of 5 from 36 ratings, while NSYS averages 2.7 from 7 ratings.

### Do Test & Check for iPhone or NSYS have ads?

Test & Check for iPhone shows ads; NSYS does not.

### Which is updated more often, Test & Check for iPhone or NSYS?

Test & Check for iPhone ships an update every 3 months, and NSYS every 2 months. Most recently, Test & Check for iPhone was updated on September 3, 2026 and NSYS on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*