# Acc.elerometer vs Seismoviewer

The clearest difference is update cadence: Seismoviewer at every 2 days against Acc.elerometer's every 20 months. Seismoviewer also leads on iOS requirement (17.6 vs 26.0). On price, ads, 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.

Acc.elerometer ships an update every 20 months, Seismoviewer every 2 days. The most recent releases landed on September 16, 2026 and July 9, 2026 respectively.

## The numbers

| Metric | Acc.elerometer | Seismoviewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/seismoviewer/id6758437882/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 10 MB | 2 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pantiukhin Andrei](https://appshunter.io/developer/1585711909) | [HyeongRae Jo](https://appshunter.io/developer/1872940735) |

## What reviewers say

### Acc.elerometer

[App page](https://appshunter.io/ios/app/accelerometer/id1631020465)

**Features:** macOS Compatibility

**In-app purchases:** none


### Seismoviewer

[App page](https://appshunter.io/ios/app/seismoviewer/id6758437882)

This tool helps you monitor and analyze everyday vibrations from various sources like appliances, footsteps, or industrial equipment. It displays vibration magnitude, trends, and characteristics using your smartphone's accelerometer. All data processing is done locally on your device.

**Highlights:** Identify and analyze everyday vibrations, Monitor vibration magnitude, trends, and characteristics, Utilizes smartphone accelerometer, Local data processing on device, Suitable for household, industrial, and lab environments

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Acc.elerometer free?

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

### Is Seismoviewer free?

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

### Do Acc.elerometer or Seismoviewer have ads?

Neither Acc.elerometer nor Seismoviewer shows ads.

### Which is updated more often, Acc.elerometer or Seismoviewer?

Acc.elerometer ships an update every 20 months, and Seismoviewer every 2 days. Most recently, Acc.elerometer was updated on September 16, 2026 and Seismoviewer on July 9, 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.*