Privacy Policy Stacker

Contact® GmbH
CTO: Dipl.-Ing. Christian Steinmann
Klausenerstr. 47
39112 Magdeburg

VAT-Registration-Number: DE295495001
Commercial Register: HRB 28860
Local Court Stendal GmbH
Klausenerstr. 47
39114 Magdeburg/Germany

(Please use the contact form preferably.)

+49 (0) 391 63 60 66 46
+49 (0) 391 63 60 66 45



We are delighted that you have shown interest in Stacker App. Data protection is of a high priority for GmbH.

Stacker – Projector Stacking

The use of the Stacker App, provided by GmbH, is possible without giving any personal data. We do not collect any personal data through Stacker App. Furthermore, Stacker App does not contain any advertisements, so no third parties are involved who could collect data.

Stacker requires access to the device camera while it is running to capture test-patterns shown on your projector for calibration. Stacker App is using a photogrammetrical measurement procedure to align and calibrate a projection. Therefore, the application needs to take photographs of the displayed patterns. These photographs are not stored on the user’s device.


Personal data

Personal data means any information relating to an identified or identifiable natural person (“data subject”). An identifiable natural person is one who can be identified, directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, an online identifier or to one or more factors specific to the physical, physiological, genetic, mental, economic, cultural or social identity of that natural person.

Third party

Third party is a natural or legal person, public authority, agency or body other than the data subject, controller, processor and persons who, under the direct authority of the controller or processor, are authorised to process personal data.