Outcrop vs sSLOPE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Outcrop
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.
- 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)
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This application is designed for the geologist to use during field studies. It lets the user take pictures of the outcrop, interpret the high resolution image and export this information in 3D to construct a 3D geological model. On the image, the user can interpret facies intervals, sedimentary structures and boundaries. The user can add annotations anywhere, measure width/height of sediment bodies (channels, lobes, etc.), and compute bodies statistics. Using an iphone or ipad, the user can measure dip and azimuth and locate this measure on the picture or use its GPS location to export dip markers to the 3D model. Once the user defines the image scale, all interpreted boundaries and intervals can be exported in 3D in GOCAD format (image, interpretations boundaries, dip/azimuth and facies intervals).
sSLOPE
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.
- 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
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sSLOPE is designed to perform a quick slope stability analysis on your phone device. sSLOPE is very simple and easy to use. sSLOPE uses the simplified Bishop method (method of slices) to discretize the soil/rock mass and determine the Factor of Safety (FOS). sSLOPE has the following features: • The stability of horizontally layered soil slope (up to maximum 7 layers) can be analyzed using the latest version (i.e. sSLOPE v3.0). • Water Table can be used for calculating pore pressure. The Water Table can also be used to define ponded water above the slope surface. • Vertical external loading (compression distributed pressure) can be easily applied to the upper slope of a model. • Pseudo-static seismic loads can be added to model by defining the seismic load coefficients in the horizontal and/or vertical directions. • The End Anchored and Soil Nail support can be used to model slope reinforcement. • Failure surface search limits can be modified to narrow down the search area to achieve better accuracy. • Both Mohr-Coulomb and Generalized Hoek-Brown strength criterion can be used to assess stability of soil and rock slopes. • The Settings Tab can be used to configure the main analysis parameters for the model, such as Units of Measurement, Project Title and etc. • The brief summary of analysis results and input data will be displayed in the Report Page. The report button, allows user to save the current model’s input and output information into PDF file. The generated report file can be sent out via email.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Outcrop | sSLOPE |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 1.7 (3 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 weeks — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 21 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Next-Shot | Roozbeh Geraili Mikola |
Customer experience
Outcrop
sSLOPE
In-app purchases
Outcrop
No in-app purchases
sSLOPE
No in-app purchases








