# Smart Vibration Meter・Detector vs Boatlink

The clearest difference is rating: Boatlink at 5.0 against Smart Vibration Meter・Detector's 4.1. Boatlink also leads on review sentiment (100% vs 60%) and in-app purchases (none vs 17). Smart Vibration Meter・Detector's advantage is ratings volume (27 vs 1). On price, device support and iOS requirement 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. Boatlink asks for nothing beyond the download.

Boatlink holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Smart Vibration Meter・Detector has 27 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Smart Vibration Meter・Detector's written reviews are positive against 100% of Boatlink's.

Smart Vibration Meter・Detector ships an update every 8 months, Boatlink fortnightly. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Smart Vibration Meter・Detector | Boatlink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (27 ratings)](https://appshunter.io/ios/app/smart-vibration-meterdetector/id1121590218/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/boatlink/id6804300570/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 79 MB | 42 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [Robert wood](https://appshunter.io/developer/6790981775) |

## 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 |


### Boatlink

[App page](https://appshunter.io/ios/app/boatlink/id6804300570)

Facilitates hands-free communication among crew members on a boat, even in noisy environments. It creates a private, local network that requires no internet or phone signal, ensuring secure and reliable communication.

**Highlights:** Hands-free crew communication, No internet or phone signal required, Local network creation, Encrypted communication, Individual volume control, Direct ringing feature

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

**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 Boatlink free?

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

### Which has better reviews, Smart Vibration Meter・Detector or Boatlink?

Boatlink is rated higher. Smart Vibration Meter・Detector averages 4.1 out of 5 from 27 ratings, while Boatlink averages 5.0 from 1 ratings.

### Do Smart Vibration Meter・Detector or Boatlink have ads?

Smart Vibration Meter・Detector shows ads; Boatlink does not.

### Which is updated more often, Smart Vibration Meter・Detector or Boatlink?

Smart Vibration Meter・Detector ships an update every 8 months, and Boatlink fortnightly. Most recently, Smart Vibration Meter・Detector was updated on October 3, 2026 and Boatlink on October 15, 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.*