# MPD Simulator vs FaultKin Mobile

The clearest difference is price: FaultKin Mobile at Free against MPD Simulator's $49.99. FaultKin Mobile also leads on update cadence (every 2 months vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FaultKin Mobile is free to download; MPD Simulator costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MPD Simulator ships an update every 4 months, FaultKin Mobile every 2 months. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | MPD Simulator | FaultKin Mobile |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/faultkin-mobile/id1234264776/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 29 MB | 28 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Richard Allmendinger](https://appshunter.io/developer/1194772609) |

## What reviewers say

### MPD Simulator

[App page](https://appshunter.io/ios/app/mpd-simulator/id1109781805)

**Features:** Vision Pro support

**In-app purchases:** none


### FaultKin Mobile

[App page](https://appshunter.io/ios/app/faultkin-mobile/id1234264776)

This app allows geologists to collect, visualize, and analyze fault slip data directly from their mobile device. It offers both automatic data entry using device orientation and manual input options, with features for grouping data and performing basic calculations.

**Highlights:** Automatic data entry via device orientation, Manual data entry via stereonet or text fields, Group faults with custom tags, Perform basic calculations (rotations, unfolding), Plot P and T axes, moment tensor axes, View plots from any orientation, Stamp entries with time, date, and location

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MPD Simulator free?

MPD Simulator costs $49.99, with no in-app purchases.

### Is FaultKin Mobile free?

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

### Do MPD Simulator or FaultKin Mobile have ads?

Neither MPD Simulator nor FaultKin Mobile shows ads.

### Which is updated more often, MPD Simulator or FaultKin Mobile?

MPD Simulator ships an update every 4 months, and FaultKin Mobile every 2 months. Most recently, MPD Simulator was updated on October 2, 2026 and FaultKin Mobile on October 5, 2026.

---

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