MacSlope is an app designed for Mac OSX 10.8+ to calculate the factor of safety of earth slopes, using commonly used methods of limit equilibrium slope stability analysis.
MacSlope is a fully-featured application, with the capability to:

• Model tension cracks.
• Model partially and fully submerged slopes.
• Model complex pore pressure conditions for each region, through the use of piezometric surfaces, and ru or B-bar coefficients.
• Model complex geometries with an unlimited number of regions and materials.
• Model vertical and inclined surcharge loads.
• Model seismic loading, input as a horizontal acceleration for pseudo-static analysis.
• Calculate the factor of safety using the Ordinary, Bishop's Simplified, Janbu's Simplified, Spencer's and General Limit Equilibrium methods.
• Analyze circular, compound, and user-defined slip shapes.
• Search for the minimum factor safety using a search grid, specified surface, or auto search.
• Plot contours of factor of safety for search grids, or display a "heat map" of colors.
• Animate the slip surfaces and slices being analyzed as calculations happen.
• Inspect the calculated slice forces and create custom plots of force and stress over the slip segment.
• Import DXF files for quick creation of slope geometry.
• Create reports (HTML/PDF) using analysis results and custom plot content.