# SKF Authenticate vs NTN PORTABLE VIBROSCOPE

The clearest difference is rating: NTN PORTABLE VIBROSCOPE at 5.0 against SKF Authenticate's 4.6. SKF Authenticate's advantage is iOS requirement (13.4 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

NTN PORTABLE VIBROSCOPE holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

SKF Authenticate ships an update every 6 months, NTN PORTABLE VIBROSCOPE every 4 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | SKF Authenticate | NTN PORTABLE VIBROSCOPE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (8 ratings)](https://appshunter.io/ios/app/skf-authenticate/id987442973/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ntn-portable-vibroscope/id1484769205/reviews)** |
| Number of ratings | **8** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 33 MB | 4 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SKF](https://appshunter.io/developer/472922971) | [NTN Corporation](https://appshunter.io/developer/1227637192) |

## What reviewers say

### SKF Authenticate

[App page](https://appshunter.io/ios/app/skf-authenticate/id987442973)

This app helps users verify the authenticity of SKF products. It provides clear instructions for photographing products for expert review or allows scanning codes for instant feedback on validity.

**Highlights:** Product authenticity verification, Photo submission for expert review, Code scanning for instant feedback, Counterfeit detection guidance, Step-by-step instructions

**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 SKF Authenticate free?

SKF Authenticate 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.

### Which has better reviews, SKF Authenticate or NTN PORTABLE VIBROSCOPE?

NTN PORTABLE VIBROSCOPE is rated higher. SKF Authenticate averages 4.6 out of 5 from 8 ratings, while NTN PORTABLE VIBROSCOPE averages 5.0 from 3 ratings.

### Do SKF Authenticate or NTN PORTABLE VIBROSCOPE have ads?

Neither SKF Authenticate nor NTN PORTABLE VIBROSCOPE shows ads.

### Which is updated more often, SKF Authenticate or NTN PORTABLE VIBROSCOPE?

SKF Authenticate ships an update every 6 months, and NTN PORTABLE VIBROSCOPE every 4 months. Most recently, SKF Authenticate was updated on September 17, 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.*