# Smart Vibration Meter・Detector vs Pross Methan

The clearest difference is price: Smart Vibration Meter・Detector at Free against Pross Methan's $27.99. Smart Vibration Meter・Detector also leads on ratings volume (27 vs 1). Pross Methan's advantage is rating (5.0 vs 4.1) and in-app purchases (none vs 17). On device support there is nothing between them.

Smart Vibration Meter・Detector is free to download; Pross Methan costs $27.99 up front. Smart Vibration Meter・Detector sells 17 in-app purchases, starting at $0.99 per 7 days. Pross Methan asks for nothing beyond the download.

Pross Methan holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Smart Vibration Meter・Detector has 27 ratings behind it against 1, so its average is the more settled of the two.

Smart Vibration Meter・Detector ships an update every 8 months, Pross Methan every 6 weeks. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Smart Vibration Meter・Detector | Pross Methan |
| --- | --- | --- |
| Price | **Free** | $27.99 |
| Rating | [4.1 (27 ratings)](https://appshunter.io/ios/app/smart-vibration-meterdetector/id1121590218/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pross-methan/id1538259903/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 6 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 79 MB | 51 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [DONG HAE IM](https://appshunter.io/developer/1498155940) |

## What reviewers say

### Smart Vibration Meter・Detector

[App page](https://appshunter.io/ios/app/smart-vibration-meterdetector/id1121590218)

This utility app transforms your phone into a seismograph to measure vibrations and detect earthquakes. It displays readings on both the Richter and Mercalli scales, offering insights into seismic activity.

**Highlights:** Measures vibration using phone sensors, Displays readings on Richter scale, Displays readings on Mercalli intensity scale, Acts as a seismic detector, Calibration feature for accuracy, Classifies seismic activity effects

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $0.99 | per 7 days |
| Unlimited access | $1.99 | per 7 days |
| Unlimited access | $2.99 | per 7 days |
| Unlimited access | $3.99 | per 7 days |
| Unlock premuium features | $4.99 | per 7 days |
| Unlock premuium features | $5.99 | per 7 days |
| Unlock premuium features | $6.99 | per 7 days |
| Unlock premuium features | $7.99 | per 7 days |
| Unlock premuium features | $8.99 | per 7 days |
| Unlock premuium features | $9.99 | per year |
| Unlimited access | $19.99 | per year |
| Unlock premuium features | $19.99 | per month |
| Unlimited access | $29.99 | per year |
| Unlock premuium features | $29.99 | per month |
| Unlimited access | $39.99 | per year |
| Unlimited access | $49.99 | per year |
| Ads-Free | $0.99 | one-time |


### Pross Methan

[App page](https://appshunter.io/ios/app/pross-methan/id1538259903)

This program operates a Pross Methanols device for vehicles using Bluetooth communication. It allows users to control and manage their vehicle's methanol system directly from their mobile device.

**Highlights:** Bluetooth communication, Vehicle device operation, Methanol system control, Mobile app interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Vibration Meter・Detector free?

Smart Vibration Meter・Detector is free to download, with in-app purchases available.

### Is Pross Methan free?

Pross Methan costs $27.99, with no in-app purchases.

### Which has better reviews, Smart Vibration Meter・Detector or Pross Methan?

Pross Methan is rated higher. Smart Vibration Meter・Detector averages 4.1 out of 5 from 27 ratings, while Pross Methan averages 5.0 from 1 ratings.

### Do Smart Vibration Meter・Detector or Pross Methan have ads?

Smart Vibration Meter・Detector shows ads; Pross Methan does not.

### Which is updated more often, Smart Vibration Meter・Detector or Pross Methan?

Smart Vibration Meter・Detector ships an update every 8 months, and Pross Methan every 6 weeks. Most recently, Smart Vibration Meter・Detector was updated on October 20, 2026 and Pross Methan on October 10, 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.*