# NTN PORTABLE VIBROSCOPE vs ウォッチロガー

The clearest difference is device support: NTN PORTABLE VIBROSCOPE at 3 against ウォッチロガー's 1. 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.

NTN PORTABLE VIBROSCOPE ships an update every 4 months, ウォッチロガー every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | NTN PORTABLE VIBROSCOPE | ウォッチロガー |
| --- | --- | --- |
| 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 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 4 MB | 7 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NTN Corporation](https://appshunter.io/developer/1227637192) | [FUJITA ELECTRIC WORKS, LTD.](https://appshunter.io/developer/1615518386) |

## What reviewers say

### 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


### ウォッチロガー

[App page](https://appshunter.io/ios/app/id6463776017)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NTN PORTABLE VIBROSCOPE free?

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

### Is ウォッチロガー free?

ウォッチロガー is free to download, with no in-app purchases.

### Do NTN PORTABLE VIBROSCOPE or ウォッチロガー have ads?

Neither NTN PORTABLE VIBROSCOPE nor ウォッチロガー shows ads.

### Which is updated more often, NTN PORTABLE VIBROSCOPE or ウォッチロガー?

NTN PORTABLE VIBROSCOPE ships an update every 4 months, and ウォッチロガー every 2 months. Most recently, NTN PORTABLE VIBROSCOPE was updated on November 3, 2026 and ウォッチロガー on October 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.*