# Smart Vibration Meter・Detector vs TKZ Air Refresh

The clearest difference is in-app purchases: TKZ Air Refresh at none against Smart Vibration Meter・Detector's 17. TKZ Air Refresh also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). Smart Vibration Meter・Detector's advantage is update cadence (every 8 months vs every 21 months). On price and device support there is nothing between them.

Both are free to download. Smart Vibration Meter・Detector sells 17 in-app purchases, starting at $0.99 per 7 days. TKZ Air Refresh asks for nothing beyond the download.

Smart Vibration Meter・Detector ships an update every 8 months, TKZ Air Refresh every 21 months. Both last shipped on October 3, 2026.

## The numbers

| Metric | Smart Vibration Meter・Detector | TKZ Air Refresh |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (27 ratings)](https://appshunter.io/ios/app/smart-vibration-meterdetector/id1121590218/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 months** | Every 21 months |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 39 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [MedyaPlan](https://appshunter.io/developer/455741121) |

## 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 |


### TKZ Air Refresh

[App page](https://appshunter.io/ios/app/tkz-air-refresh/id1355873266)

**Features:** macOS Compatibility

**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 TKZ Air Refresh free?

TKZ Air Refresh is free to download, with no in-app purchases.

### Do Smart Vibration Meter・Detector or TKZ Air Refresh have ads?

Smart Vibration Meter・Detector shows ads; TKZ Air Refresh does not.

### Which is updated more often, Smart Vibration Meter・Detector or TKZ Air Refresh?

Smart Vibration Meter・Detector ships an update every 8 months, and TKZ Air Refresh every 21 months. Most recently, Smart Vibration Meter・Detector was updated on October 3, 2026 and TKZ Air Refresh on October 3, 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.*