# Prisma App vs Seismometer+

The clearest difference is ads: Prisma App at none against Seismometer+'s shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Prisma App | Seismometer+ |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Monetization | — | Ad-supported |
| Size | 13 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Solution Tech Srl](https://appshunter.io/developer/1485604429) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### Prisma App

[App page](https://appshunter.io/ios/app/prisma-app/id1606344064)

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Prisma App free?

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

### Is Seismometer+ free?

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

### Do Prisma App or Seismometer+ have ads?

Seismometer+ shows ads; Prisma App 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.*