# NSYS Diagnostics vs ServiceTests

The clearest difference is update cadence: ServiceTests at daily against NSYS Diagnostics's every 3 weeks. NSYS Diagnostics's advantage is device support (4 vs 2) and iOS requirement (13 vs 15.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NSYS Diagnostics ships an update every 3 weeks, ServiceTests daily. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | NSYS Diagnostics | ServiceTests |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 15 MB | 12 MB |
| Requires iOS | **13** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grigoriy Glazman](https://appshunter.io/developer/1448501053) | [Thanh Nguyen](https://appshunter.io/developer/6777103907) |

## What reviewers say

### NSYS Diagnostics

[App page](https://appshunter.io/ios/app/nsys-diagnostics/id6764545220)

**Features:** Apple Watch app

**In-app purchases:** none


### ServiceTests

[App page](https://appshunter.io/ios/app/servicetests/id6790297735)

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

**In-app purchases:** none


## Frequently asked questions

### Is NSYS Diagnostics free?

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

### Is ServiceTests free?

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

### Do NSYS Diagnostics or ServiceTests have ads?

Neither NSYS Diagnostics nor ServiceTests shows ads.

### Which is updated more often, NSYS Diagnostics or ServiceTests?

NSYS Diagnostics ships an update every 3 weeks, and ServiceTests daily. Most recently, NSYS Diagnostics was updated on October 11, 2026 and ServiceTests 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.*