# FaultKin Mobile vs Skeletal System Flashcards

The clearest difference is price: FaultKin Mobile at Free against Skeletal System Flashcards's $2.99. FaultKin Mobile also leads on update cadence (every 2 months vs every 16 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FaultKin Mobile is free to download; Skeletal System Flashcards costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FaultKin Mobile ships an update every 2 months, Skeletal System Flashcards every 16 months. The most recent releases landed on October 22, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | FaultKin Mobile | Skeletal System Flashcards |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| 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 2 months** | Every 16 months |
| Monetization | Free | — |
| Size | 28 MB | 19 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Richard Allmendinger](https://appshunter.io/developer/1194772609) | [Hasan Cakir](https://appshunter.io/developer/814343093) |

## What reviewers say

### 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


### Skeletal System Flashcards

[App page](https://appshunter.io/ios/app/skeletal-system-flashcards/id1473822986)

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

**In-app purchases:** none


## Frequently asked questions

### Is FaultKin Mobile free?

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

### Is Skeletal System Flashcards free?

Skeletal System Flashcards costs $2.99, with no in-app purchases.

### Do FaultKin Mobile or Skeletal System Flashcards have ads?

Neither FaultKin Mobile nor Skeletal System Flashcards shows ads.

### Which is updated more often, FaultKin Mobile or Skeletal System Flashcards?

FaultKin Mobile ships an update every 2 months, and Skeletal System Flashcards every 16 months. Most recently, FaultKin Mobile was updated on October 22, 2026 and Skeletal System Flashcards on October 26, 2026.

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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.*