# Pro vs Seismometer+

The clearest difference is rating: Seismometer+ at 4.5 against Pro's 1.8. Seismometer+ also leads on ratings volume (82 vs 4). Pro's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.

Seismometer+ holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: Seismometer+ has 82 ratings behind it against 4, so its average is the more settled of the two.

## The numbers

| Metric | Pro | Seismometer+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (4 ratings)](https://appshunter.io/ios/app/pro-3000/id1313689660/reviews) | **[4.5 (82 ratings)](https://appshunter.io/ios/app/seismometer-plus/id6739265160/reviews)** |
| Number of ratings | 4 | **82** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | — |
| Monetization | **Free** | Ad-supported |
| Size | 17 MB | 3 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TECOM CO., LTD.](https://appshunter.io/developer/490537952) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### Pro

[App page](https://appshunter.io/ios/app/pro-3000/id1313689660)

This portable diagnostic instrument integrates vibration measurement, analysis, and diagnosis for mechanical and electrical equipment. It offers plug-and-play convenience with IoT and sensor technology, reducing maintenance time and effort for factories.

**Highlights:** Mobile operation and maintenance, IoT and sensor technology integration, Plug and Play convenience, Simultaneous connection of 4 vibration gauges, Integrated vibration measurement, analysis, and diagnosis, Reduced maintenance time

**Features:** macOS Compatibility

**In-app purchases:** none


### Seismometer+

[App page](https://appshunter.io/ios/app/seismometer-plus/id6739265160)

Transform your device into a powerful seismometer to measure and visualize vibrations in real time. Track tremors, analyze surface stability, and explore the unseen movements around you with intuitive graphical displays. Perfect for science enthusiasts and the curious.

**Highlights:** Real-time X, Y, Z axis acceleration graphs, Cumulative vibration intensity analysis, Adjustable long-term data recording intervals, Dark mode display, Customizable graph update rates and sensitivity

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

**In-app purchases:** none


## Frequently asked questions

### Is Pro free?

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

### Is Seismometer+ free?

Seismometer+ is free to download, with no in-app purchases.

### Which has better reviews, Pro or Seismometer+?

Seismometer+ is rated higher. Pro averages 1.8 out of 5 from 4 ratings, while Seismometer+ averages 4.5 from 82 ratings.

### Do Pro or Seismometer+ have ads?

Seismometer+ shows ads; Pro does not.

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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.*