AngleCam is a scientific camera application combined with GPS information (including latitude, longitude, altitude and accuracy), pitch angles and azimuth angles. In addition, AngleCam can leave a message, and put all information together into a photograph.
For more information, please refer to the following document.
http://anglecam.derekr.com/download/Introduction_EN_20171101.pdf
■ The difference between "AngleCam Lite" and "AngleCam Pro."
(1) AngleCam Lite is a free App. AngleCam Pro is paid App.
(2) AngleCam Lite has a "Powered by AngleCam" text (watermark) in photographs' bottom right corner.
(3) AngleCam Pro can use the text watermark or the graphic watermark.
(4) Both are ad-free.
Attention: If you cannot install this application, it means your mobile device doesn't have an accelerometer sensor or a magnetometer sensor. You may be interested in another application which is called "NoteCam." However, NoteCam doesn't include pitch angle information, azimuth angle information, and a horizontal line.