# Seismometer+ vs Shiftivo

The clearest difference is in-app purchases: Seismometer+ at none against Shiftivo's 1. Seismometer+ also leads on iOS requirement (15.0 vs 26.2). Shiftivo's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Shiftivo sells 1 one-off in-app purchase. Seismometer+ asks for nothing beyond the download.

## The numbers

| Metric | Seismometer+ | Shiftivo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (82 ratings)](https://appshunter.io/ios/app/seismometer-plus/id6739265160/reviews)** | — |
| Number of ratings | **82** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Monetization | Ad-supported | — |
| Size | 3 MB | 2 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UniCom Technology](https://appshunter.io/developer/1270764210) | [Amro Darwish](https://appshunter.io/developer/1888208504) |

## 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


### Shiftivo

[App page](https://appshunter.io/ios/app/shiftivo/id6761194951)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shiftivo Premium | $3.99 | one-time |


## Frequently asked questions

### Is Seismometer+ free?

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

### Is Shiftivo free?

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

### Do Seismometer+ or Shiftivo have ads?

Seismometer+ shows ads; Shiftivo does not.

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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.*