# Optical Power Meter vs Vibration analysis

The clearest difference is review sentiment: Vibration analysis at 57% against Optical Power Meter's 0%. Vibration analysis also leads on rating (4.0 vs 2.6) and update cadence (every 3 months vs every 12 months). Optical Power Meter's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Vibration analysis sells 2 one-off in-app purchases. Optical Power Meter asks for nothing beyond the download.

Vibration analysis holds the better App Store score, 4.0 against 2.6. That said, the two scores are not equally well evidenced: Vibration analysis has 43 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of Optical Power Meter's written reviews are positive against 57% of Vibration analysis's.

Optical Power Meter ships an update every 12 months, Vibration analysis every 3 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Optical Power Meter | Vibration analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/optical-power-meter/id665941154/reviews) | **[4.0 (43 ratings)](https://appshunter.io/ios/app/vibration-analysis/id817385888/reviews)** |
| Number of ratings | 5 | **43** |
| Positive reviews | 0.0% of reviews | **57.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 5 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thorlabs GmbH](https://appshunter.io/developer/662121683) | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) |

## What reviewers say

### Optical Power Meter

[App page](https://appshunter.io/ios/app/optical-power-meter/id665941154)

Control handheld optical power meters remotely via Bluetooth. View power readings on a large gauge and a 5-digit display, with min/max tracking. Adjust basic settings like wavelength and zeroing from your mobile device.

**Highlights:** Remote control via Bluetooth, Large needle gauge display, 5-digit power reading, Minimum and maximum readings, Wavelength correction, Zeroing function

**Features:** macOS Compatibility

**In-app purchases:** none


### Vibration analysis

[App page](https://appshunter.io/ios/app/vibration-analysis/id817385888)

This app analyzes phone accelerometer data to create a vibration spectrum. It helps evaluate vibration strength, frequency, and the rotation speed of various mechanisms like fans and motors. Useful for quality checks, malfunction detection, and balancing homemade rotating parts.

**Highlights:** Vibration spectrum analysis, Rotation speed evaluation, Mechanism quality assessment, Malfunction monitoring, Customizable FFT size, Multiple units of measurement, Peak frequency detection

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Settings | $2.99 | one-time |
| External accelerometer | $2.99 | one-time |


## Frequently asked questions

### Is Optical Power Meter free?

Optical Power Meter is free to download, with no in-app purchases.

### Is Vibration analysis free?

Vibration analysis is free to download, with in-app purchases available.

### Which has better reviews, Optical Power Meter or Vibration analysis?

Vibration analysis is rated higher. Optical Power Meter averages 2.6 out of 5 from 5 ratings, while Vibration analysis averages 4.0 from 43 ratings.

### Do Optical Power Meter or Vibration analysis have ads?

Neither Optical Power Meter nor Vibration analysis shows ads.

### Which is updated more often, Optical Power Meter or Vibration analysis?

Optical Power Meter ships an update every 12 months, and Vibration analysis every 3 months. Most recently, Optical Power Meter was updated on September 17, 2026 and Vibration analysis on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*