Comparison

Outcrop vs sSLOPE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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).

About

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.

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
Read full description

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

Outcrop2 screens
sSLOPE4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Outcrop versus sSLOPE: the parameters behind the verdict, then further details
ParameterOutcropsSLOPE
PriceFree — better$3.99
Rating1.7 (3 ratings)4.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 5 weeks — betterEvery 27 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size21 MB4 MB
Age rating4+4+
DeveloperNext-ShotRoozbeh Geraili Mikola

Customer experience

Outcrop

All ratings3 ratings
Positive0.0%
Neutral33.3%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

sSLOPE

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Outcrop

No in-app purchases

None

sSLOPE

No in-app purchases

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.

Other comparisons