# Vibration meter vs smart plugs  app

The clearest difference is in-app purchases: smart plugs  app at none against Vibration meter's 2. smart plugs  app also leads on ads (none vs shown) and iOS requirement (8.0 vs 16.0). Vibration meter's advantage is update cadence (monthly vs every 2 months) and ratings volume (14 vs 2). On price, rating and device support there is nothing between them.

Both are free to download. Vibration meter sells 2 in-app purchases, starting at $0.99 per month. smart plugs  app asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Vibration meter against 4.5 for smart plugs  app. That said, the two scores are not equally well evidenced: Vibration meter has 14 ratings behind it against 2, so its average is the more settled of the two.

Vibration meter ships an update monthly, smart plugs  app every 2 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Vibration meter | smart plugs  app |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (14 ratings)](https://appshunter.io/ios/app/vibration-meter-seismometer/id1373632255/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/smart-plugs-app/id1518561273/reviews)** |
| Number of ratings | **14** | 2 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 51 MB | 12 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MYSTIC MOBILE APPS LLC](https://appshunter.io/developer/1481942662) | [伟才 邓](https://appshunter.io/developer/893608406) |

## What reviewers say

### Vibration meter

[App page](https://appshunter.io/ios/app/vibration-meter-seismometer/id1373632255)

Measure the strength of vibrations, tremors, and earthquakes using your phone's built-in seismograph. Visualize seismic movements on graphs, receive real-time Mercalli scale readings, and get instant alerts for seismic shocks. Data can be saved and shared for analysis.

**Highlights:** High-accuracy seismometer, Seismic wave detection, Detailed graphical analysis, Real-time Mercalli scale readings, Instant alerts for seismic shocks, Effortless data autosave, Apple Watch compatibility

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Vibration meter+ | $0.99 | per month |
| Annual Vibration meter+ | $5.99 | per year |


### smart plugs  app

[App page](https://appshunter.io/ios/app/smart-plugs-app/id1518561273)

Monitor the real-time current, voltage, and power consumption of your smart sockets directly from your mobile device. This utility app provides essential data for managing your connected appliances efficiently.

**Highlights:** Monitor current, Monitor voltage, Monitor power, Device data upload, Real-time tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vibration meter free?

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

### Is smart plugs  app free?

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

### Which has better reviews, Vibration meter or smart plugs  app?

smart plugs  app is rated higher. Vibration meter averages 4.4 out of 5 from 14 ratings, while smart plugs  app averages 4.5 from 2 ratings.

### Do Vibration meter or smart plugs  app have ads?

Vibration meter shows ads; smart plugs  app does not.

### Which is updated more often, Vibration meter or smart plugs  app?

Vibration meter ships an update monthly, and smart plugs  app every 2 months. Most recently, Vibration meter was updated on October 24, 2026 and smart plugs  app on October 29, 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.*