# Attenuator vs Vibration Meter, seismograph

The clearest difference is review sentiment: Attenuator at 100% against Vibration Meter, seismograph's 42%. Attenuator also leads on rating (5.0 vs 4.7). Vibration Meter, seismograph's advantage is ratings volume (717 vs 8) and device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Attenuator sells 1 one-off in-app purchase and Vibration Meter, seismograph sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Attenuator holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Vibration Meter, seismograph has 717 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 100% of Attenuator's written reviews are positive against 42% of Vibration Meter, seismograph's.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Attenuator | Vibration Meter, seismograph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/attenuator/id367216554/reviews)** | [4.7 (717 ratings)](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201/reviews) |
| Number of ratings | 8 | **717** |
| Positive reviews | **100.0% of reviews** | 41.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1 MB | 18 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tim E. Burrow](https://appshunter.io/developer/367216557) | [ExaMobile S.A.](https://appshunter.io/developer/506014841) |

## What reviewers say

### Attenuator

[App page](https://appshunter.io/ios/app/attenuator/id367216554)

Calculate output voltage, power, and attenuation based on input values and dB of attenuation. Features NMR-specific calculations for pulses and measures local magnetic fields and barometric pressure.

**Highlights:** Calculate output voltage and power, Specify input voltage (Vpp or Vrms), Calculate attenuation in dB, NMR pulse calculations, Measure local magnetic field, Display barometric pressure

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all ads | $1.99 | one-time |


### Vibration Meter, seismograph

[App page](https://appshunter.io/ios/app/vibration-meter-seismograph/id1137580201)

This application uses your phone's accelerometer to measure and record vibrations from various sources, including earthquakes and everyday objects. It displays ground motion on a graph and uses an instrumental intensity scale for analysis. You can also monitor and share your measurement results.

**Highlights:** Measures vibration strength, Detects seismic waves, Uses accelerometer for analysis, Displays ground motion graph, Utilizes instrumental intensity scale, Monitors and shares results

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Attenuator free?

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

### Is Vibration Meter, seismograph free?

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

### Which has better reviews, Attenuator or Vibration Meter, seismograph?

Attenuator is rated higher. Attenuator averages 5.0 out of 5 from 8 ratings, while Vibration Meter, seismograph averages 4.7 from 717 ratings.

### Do Attenuator or Vibration Meter, seismograph have ads?

Neither Attenuator nor Vibration Meter, seismograph shows ads.

### Which is updated more often, Attenuator or Vibration Meter, seismograph?

Attenuator ships an update every 7 months, and Vibration Meter, seismograph every 7 months. Most recently, Attenuator was updated on October 1, 2026 and Vibration Meter, seismograph on October 18, 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.*