# NSK Verify vs NTN PORTABLE VIBROSCOPE

The clearest difference is update cadence: NTN PORTABLE VIBROSCOPE at every 4 months against NSK Verify's every 10 months. NSK Verify's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

NSK Verify ships an update every 10 months, NTN PORTABLE VIBROSCOPE every 4 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | NSK Verify | NTN PORTABLE VIBROSCOPE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ntn-portable-vibroscope/id1484769205/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 36 MB | 4 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NSK](https://appshunter.io/developer/1124263996) | [NTN Corporation](https://appshunter.io/developer/1227637192) |

## What reviewers say

### NSK Verify

[App page](https://appshunter.io/ios/app/nsk-verify/id1364867904)

**Features:** macOS Compatibility

**In-app purchases:** none


### NTN PORTABLE VIBROSCOPE

[App page](https://appshunter.io/ios/app/ntn-portable-vibroscope/id1484769205)

Analyze equipment vibrations wirelessly using acceleration data. Perform OA and FFT analysis to identify bearing damage and assess equipment condition based on ISO 10816 criteria. Manage bearing replacement recommendations and track vibration changes over time.

**Highlights:** Wireless vibration analysis, OA and FFT analysis, Bearing damage identification, ISO 10816 vibration evaluation, Customizable bearing lists, Data storage and history management, Export data to computer

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

**In-app purchases:** none


## Frequently asked questions

### Is NSK Verify free?

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

### Is NTN PORTABLE VIBROSCOPE free?

NTN PORTABLE VIBROSCOPE is free to download, with no in-app purchases.

### Do NSK Verify or NTN PORTABLE VIBROSCOPE have ads?

Neither NSK Verify nor NTN PORTABLE VIBROSCOPE shows ads.

### Which is updated more often, NSK Verify or NTN PORTABLE VIBROSCOPE?

NSK Verify ships an update every 10 months, and NTN PORTABLE VIBROSCOPE every 4 months. Most recently, NSK Verify was updated on September 10, 2026 and NTN PORTABLE VIBROSCOPE on September 9, 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.*