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About Lambert
This app turns your iPhone into a geological compass, a tool for each geologist. It can be used to measure the direction of dip and the angle of dip of geological strata. The app shows the current device orientation in a realtime stereographic projection. The data can be previewed in projection diagrams (Wulff and Schmidt Net) and transferred to your computer. You can add text to the measurements and plot the measurement localities on a map.
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What's New in the Latest Version 3.1.0
Last updated on May 4, 2026
Old Versions
Measurements can now be presented in a Strike (RHR) / Dip notation, when this is selected in the App Preferences.
Fieldbook text entry now directly possible within the Measure View.
Fieldbook text entry now directly possible within the Measure View.
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Version History
3.1.0
May 4, 2026
Measurements can now be presented in a Strike (RHR) / Dip notation, when this is selected in the App Preferences.
Fieldbook text entry now directly possible within the Measure View.
Fieldbook text entry now directly possible within the Measure View.
Lambert Price
Today:
Free
Lowest:
Free
Highest:
$2.99
Lambert FAQ
Lambert is available in regions other than the following restricted countries:
Fiji
Check the following list to see the minimum requirements of Lambert.
iPhone
iPad
Click here to learn how to download Lambert in restricted country or region.
