# iTemblor Earthquake Simulator vs Big O Notation

The clearest difference is device support: Big O Notation at 3 against iTemblor Earthquake Simulator's 1. Big O Notation also leads on iOS requirement (15.1 vs 17.6). On price, ads and in-app purchases 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 | iTemblor Earthquake Simulator | Big O Notation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/itemblor-earthquake-simulator/id297751959/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Monetization | Free | — |
| Size | 1 MB | 38 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jess Taylor](https://appshunter.io/developer/417821730) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### iTemblor Earthquake Simulator

[App page](https://appshunter.io/ios/app/itemblor-earthquake-simulator/id297751959)

Explore earthquake shaking intensity by relating the acceleration you impart on your phone to the Modified Mercalli Intensity (MMI) scale. Visualize shaking in 2D or 3D seismograms, with options to filter data for realistic earthquake simulations. Primarily for educational and entertainment purposes.

**Highlights:** MMI scale simulation, Seismoscope view (2D), Time Series view (3D seismogram), Gravity removal, Low-pass filtering, Educational and entertainment focus

**In-app purchases:** none


### Big O Notation

[App page](https://appshunter.io/ios/app/big-o-notation/id6771656290)

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

**In-app purchases:** none


## Frequently asked questions

### Is iTemblor Earthquake Simulator free?

iTemblor Earthquake Simulator is free to download, with no in-app purchases.

### Is Big O Notation free?

Big O Notation is free to download, with no in-app purchases.

### Do iTemblor Earthquake Simulator or Big O Notation have ads?

Neither iTemblor Earthquake Simulator nor Big O Notation shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*