# Seismometer+ vs Mileage Tracker & Calculator

The clearest difference is in-app purchases: Seismometer+ at none against Mileage Tracker & Calculator's 2. Seismometer+ also leads on iOS requirement (15.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Mileage Tracker & Calculator sells 2 one-off in-app purchases. Seismometer+ asks for nothing beyond the download.

## The numbers

| Metric | Seismometer+ | Mileage Tracker & Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (90 ratings)](https://appshunter.io/ios/app/seismometer-plus/id6739265160/reviews)** | — |
| Number of ratings | **90** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Monthly |
| Monetization | Ad-supported | — |
| Size | 3 MB | 48 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UniCom Technology](https://appshunter.io/developer/1270764210) | [DixonAppStudio LLC](https://appshunter.io/developer/1888051935) |

## What reviewers say

### Seismometer+

[App page](https://appshunter.io/ios/app/seismometer-plus/id6739265160)

Transform your device into a powerful seismometer to measure and visualize vibrations in real time. Track tremors, analyze surface stability, and explore the unseen movements around you with intuitive graphical displays. Perfect for science enthusiasts and the curious.

**Highlights:** Real-time X, Y, Z axis acceleration graphs, Cumulative vibration intensity analysis, Adjustable long-term data recording intervals, Dark mode display, Customizable graph update rates and sensitivity

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

**In-app purchases:** none


### Mileage Tracker & Calculator

[App page](https://appshunter.io/ios/app/mileage-tracker-and-calculator/id6761273144)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |
| Mileage Tracker Pro | $4.99 | one-time |


## Frequently asked questions

### Is Seismometer+ free?

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

### Is Mileage Tracker & Calculator free?

Mileage Tracker & Calculator is free to download, with in-app purchases available.

### Do Seismometer+ or Mileage Tracker & Calculator have ads?

Both Seismometer+ and Mileage Tracker & Calculator show ads.

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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.*