# Neural Shield vs NSYS Diagnostics

The clearest difference is device support: NSYS Diagnostics at 4 against Neural Shield's 2. On price, update cadence, 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.

Neural Shield ships an update every 3 weeks, NSYS Diagnostics monthly. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Neural Shield | NSYS Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 64 MB | 24 MB |
| Requires iOS | 13.0 | **12** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Prestige Alliance Co., Ltd](https://appshunter.io/developer/1810848811) | [Grigoriy Glazman](https://appshunter.io/developer/1448501053) |

## What reviewers say

### Neural Shield

[App page](https://appshunter.io/ios/app/neural-shield/id6746807004)

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

**In-app purchases:** none


### NSYS Diagnostics

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

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Neural Shield free?

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

### Is NSYS Diagnostics free?

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

### Do Neural Shield or NSYS Diagnostics have ads?

Neither Neural Shield nor NSYS Diagnostics shows ads.

### Which is updated more often, Neural Shield or NSYS Diagnostics?

Neural Shield ships an update every 3 weeks, and NSYS Diagnostics monthly. Most recently, Neural Shield was updated on September 9, 2026 and NSYS Diagnostics on September 22, 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.*