# Outcrop vs sSLOPE

The clearest difference is price: Outcrop at Free against sSLOPE's $3.99. Outcrop also leads on update cadence (every 5 weeks vs every 27 months) and ratings volume (3 vs 1). sSLOPE's advantage is rating (4.0 vs 1.7). On ads, in-app purchases and device support there is nothing between them.

Outcrop is free to download; sSLOPE costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

sSLOPE holds the better App Store score, 4.0 against 1.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Outcrop ships an update every 5 weeks, sSLOPE every 27 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Outcrop | sSLOPE |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [1.7 (3 ratings)](https://appshunter.io/ios/app/outcrop/id1056810833/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sslope/id1403201500/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 27 months |
| Monetization | **Free** | Paid |
| Size | 21 MB | 4 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Next-Shot](https://appshunter.io/developer/1056810832) | [Roozbeh Geraili Mikola](https://appshunter.io/developer/1403201499) |

## What reviewers say

### Outcrop

[App page](https://appshunter.io/ios/app/outcrop/id1056810833)

This app aids geologists in field studies by allowing them to capture high-resolution images of outcrops. Users can interpret geological features, add annotations, take measurements, and export data to construct 3D geological models.

**Highlights:** High-resolution outcrop imaging, Interpretation of facies, structures, and boundaries, Annotation and measurement tools, Dip and azimuth measurement, GPS location integration, 3D geological model export (GOCAD format)

**Features:** macOS Compatibility

**In-app purchases:** none


### sSLOPE

[App page](https://appshunter.io/ios/app/sslope/id1403201500)

Perform quick slope stability analyses on your mobile device. This app uses the simplified Bishop method to calculate the Factor of Safety for soil and rock slopes, supporting various conditions like water tables, external loads, and seismic forces.

**Highlights:** Analyze horizontally layered soil slopes (up to 7 layers), Incorporate water table effects and ponded water, Apply vertical external loading, Model pseudo-static seismic loads, Simulate End Anchored and Soil Nail support, Adjust failure surface search limits, Utilize Mohr-Coulomb and Hoek-Brown strength criteria, Generate and email PDF reports

**In-app purchases:** none


## Frequently asked questions

### Is Outcrop free?

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

### Is sSLOPE free?

sSLOPE costs $3.99, with no in-app purchases.

### Which has better reviews, Outcrop or sSLOPE?

sSLOPE is rated higher. Outcrop averages 1.7 out of 5 from 3 ratings, while sSLOPE averages 4.0 from 1 ratings.

### Do Outcrop or sSLOPE have ads?

Neither Outcrop nor sSLOPE shows ads.

### Which is updated more often, Outcrop or sSLOPE?

Outcrop ships an update every 5 weeks, and sSLOPE every 27 months. Most recently, Outcrop was updated on October 2, 2026 and sSLOPE on September 29, 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.*