# FaultKin Mobile vs Jake for stratigraphy

The clearest difference is update cadence: FaultKin Mobile at every 2 months against Jake for stratigraphy's every 22 months. FaultKin Mobile also leads on device support (3 vs 1) and iOS requirement (11.0 vs 26.0). 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.

FaultKin Mobile ships an update every 2 months, Jake for stratigraphy every 22 months. The most recent releases landed on October 22, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | FaultKin Mobile | Jake for stratigraphy |
| --- | --- | --- |
| Price | Free | 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 2 months** | Every 22 months |
| Monetization | Free | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Richard Allmendinger](https://appshunter.io/developer/1194772609) | [Hunt Mountain Software](https://appshunter.io/developer/328710008) |

## 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


### Jake for stratigraphy

[App page](https://appshunter.io/ios/app/jake-for-stratigraphy/id1486090789)

**In-app purchases:** none


## Frequently asked questions

### Is FaultKin Mobile free?

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

### Is Jake for stratigraphy free?

Jake for stratigraphy is free to download, with no in-app purchases.

### Do FaultKin Mobile or Jake for stratigraphy have ads?

Neither FaultKin Mobile nor Jake for stratigraphy shows ads.

### Which is updated more often, FaultKin Mobile or Jake for stratigraphy?

FaultKin Mobile ships an update every 2 months, and Jake for stratigraphy every 22 months. Most recently, FaultKin Mobile was updated on October 22, 2026 and Jake for stratigraphy on October 4, 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.*