Stereonet Mobile is designed to help you collect, visualize, and analyze geological orientation data. It is a companion to my Stereonet program for desktop computers. As such I have tried to incorporate the basic functionality of that program, taking into account the inherent limitations of mobile devices. Some of the basic tasks that one can perform with Stereonet Mobile include:

• Provide automatic data entry as a geologist's compass by reading the iOS device orientation and converting it to strike and dip of planes and/or trend and plunge of lines. It is the only geology compass app that can use augmented reality to record the strike and dip of planes using the sighting method and the device camera.

• Provide manual data entry via either tapping and dragging on the stereonet or by typing values into text fields

• Plot lines and planes, which can be tagged using one of as many user defined data types (e.g., bedding, cleavage, slickensides, etc.) as you want

• Carry out basic calculations such as: rotations about any axis, planes from poles or poles from planes, measure angles between lines and between planes, and basic slope stability calculations

• Plot mean vectors, cylindrical best fits, rose diagrams, and contour lines.

• View the plots from any orientation, not just looking straight down into the lower hemisphere

• See the location of a datum in the iOS Maps program

• Show realtime changes to the stereonet projection to help students understand the geometry of the device better

• Provide basic input and output of data using standard iOS conventions

• Works on iPhones or iPads. The program will work on iPods or iPads lacking a cellular data connection but those devices have fewer sensors and thus cannot be used in automatic data collection mode.

What’s New

Version 3.4.1

v. 3.4.1 11 November 2019

This version brings much improved compatibility with iOS 13. Screen formatting has been improved in some screens, the new iOS 13 sharing panel no longer causes the app to freeze and there have been some improvements to maps. Some crashing bugs fixed. There is no new scientific functionality but if you are using a recent iOS device and/or iOS system, you should download this version.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, Richard Allmendinger, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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