Contact / Imprint

compendii UG (haftungsbeschränkt)

c/o /gebrüderheitz GmbH & Co. KG
Erbprinzenstr. 18
79098 Freiburg

Phone: +49 761 88794014

Executives (Vertretungsberechtigte Geschäftsführer): Claudius Heitz
Read more about the team on the About page.

Registergericht: Amtsgericht Freiburg
Registernummer: HRB 707944


Responsible for content according to § 55 Abs. 2 RStV

Claudius Heitz (address as above)

Apple, the Apple logo, iPad, iPhone, iPod, iTunes are trademarks of Apple Inc. App Store is a service mark of Apple Inc. The app icons, screenshots and descriptions displayed at App Meister are provided courtesy of iTunes. The terms and conditions of the affiliate program of Apple apply.


Background and Funding

compendii comes from latin and stands for shortcut or advantage. The team has dedicated itself to decision support in fields with big diversity like products or services. App Meister is their first project in this area. It is funded by the German Federal Government Department for Economy with a so called EXIST Gründerstipendium and supported by the University of Freiburg and Campus Technologies Oberrhein (CTO).

Gefördert durch Europäischer Sozialfonds für Deutschland, BMWi, EXIST, Europäische Union



Liabiliy for contents

The content of these pages has been created with great diligence. For accuracy, completeness and actuality of the content we cannot assume any liability. According to § 7 of the German Telemedia Act (TMG), we as service provider are responsible for own content on these pages according to the general laws. According to § 8 to § 10 we, as a service provider, are not obliged to monitor third party information transmitted or stored or to investigate circumstances indicating unlawful activity. Via filters and controls we seek to prevent or recognize and subsequently change or delete third party content that is contrary to public policy. Obligations for the removal or blocking of usage of information under general laws remain unaffected. Any liability in this respect is however only possible from the moment of actual notice of a specific infringement. Upon cognition of legal infringements we will remove these contents immediately.

Liability for links

Our offer includes links to external web sites of third parties on whose content we do not have any influence. Therefore we cannot assume any liability for these external contents. The content of the linked pages is at every time responsibility of the respective provider or operator. The linked sites have been checked for possible infringements at the time of linkage. There has been no indication of unlawful contents at the time of linkage. A permanent control of the contents of the linked sites without concrete evidence of a infringements, however, is not doable. Upon cognition of infringements we will remove such links immediately.


Contents and works created by the operator are subject to German copyright law. Reproduction, editions, transmissions and any type of usage beyond the scope of copyright laws require the written permission of the respective author or creator. Downloads and copies of this page are only allowed for private, non-commercial usage. Insofar as the contents provided on this site have not been created by the operator the copyrights of third parties are observed. Contents of third parites are identified as such. Should you nevertheless become aware of any copyright infringements we kindly ask for your notification. We will immediatly remove such contents upon cognition of infringements.

Data protection

The usage of our web site is usually possible without the provision of personal data. Insofar our site asks for personal data (e.g. name, address, email adress) this is, as far as possible, voluntarily. These data will not be forwarded to third parties without your explicit permission.

We point out that the transfer of data over the internet (e.g. during communication via email) can exhibit gaps of security. A complete protection of data against access by third parties is not possible.

We explicitly prohibit the usage of contact data published due to imprint obligations by third parties for the purpose of any advertisments or information materials we have not explicitly demanded. The operators of this site explicitly reserve the right to pursue legal steps in case of unsolicited advertisments materials, e.g. spam mails.

Data protection policy for the usage of plug-ins of Facebook (Like button)

Our site integrates plug-ins of the social network Facebook, 1601 South California Avenue, Palo Alto, CA 94304, USA. You recognize the Facebook plug-ins by the Facebook logo or the Like button on our site. An overview of the Facebook plug-ins is available on: When you visit our site the plug-in establishes a direct connection between your browser and the Facebook server. Facebook thereby receives knowledge via your IP adress that you have visited our site. When you click the Facebook like button while being logged in in your Facebook account you can link the content of our site with your Facebook profile. Thus Facebook can assign the visit of our site to your user account. We point out that we, as providers of the site, have no knowledge of the content as well as the usage of the transferred data through Facebook. Further information on this you find in the data protection policy of Facebook at

If you do not wish that Facebook can assign the visit of our site to your Facebook account, please log out of your Facebook user account.

Data protection policy for the usage of plug-ins of Google Analytics

This website uses Google Analytics, a web analytics service provided by Google, Inc. Google Analytics uses “cookies”, which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of the website will be transmitted to and stored by Google on servers in the United States.

In case IP-anonymisation is activated on this website, your IP address will be truncated within the area of Member States of the European Union or other parties to the Agreement on the European Economic Area. Only in exceptional cases the whole IP address will be first transfered to a Google server in the USA and truncated there. The IP-anonymisation is active on this website.

Google will use this information on behalf of the operator of this website for the purpose of evaluating your use of the website, compiling reports on website activity for website operators and providing them other services relating to website activity and internet usage.

The IP-address, that your Browser conveys within the scope of Google Analytics, will not be associated with any other data held by Google. You may refuse the use of cookies by selecting the appropriate settings on your browser, however please note that if you do this you may not be able to use the full functionality of this website. You can also opt-out from being tracked by Google Analytics with effect for the future by downloading and installing Google Analytics Opt-out Browser Addon for your current web browser:

Data protection policy for the usage of plug-ins of Google+
Collection and transmission of data:

With the Google+ button you can publish information worldwide. Via the Google+ button you and other users receive personalized contents by Google and its partners. Google saves the content that you have marked via the Google+ button as well as contents about the site you have watched when clicking the Google+ button. These contents can be shown - together with your profile name and your picture - in Google services, like in search results or in your Google profile, or in other places on web sites and advertisments on the internet. Google records information concerning your Google+ activities to improve the Google services for you and others. To use the Google+ button you have to have a worldwide visible, public Google profile that has at least to contain the for the profile chosen name. This name will be used in all Google services. In some cases this name can replace another name that you have used to share information via your Google account. The identity of your Google profile can be displayed to users knowing your email adress or other identifying information about you.

Usage of the collected information

Besides the above explained purpose of use, the information provided by you will be used according to the effective Google data protection policies. Google possibly publishes aggregated statistics about the Google+ activities of users and forwards them to users and partners like publisher, advertisers or related web sites respectively.

Data protection policy for the usage of plug-ins of Twitter

On our site functions of the Twitter service are embedded. These functions are offered by Twitter Inc., 795 Folsom St., Suite 600, San Francisco, CA 94107, USA. The usage of Twitter and the function "Re-Tweet" connect your visit of App Meister with your Twitter account and are disclosed to other users. Thereby data will be transferred to Twitter.

We point out that we, as providers of the site, have no knowledge of the content as well as the usage of the transferred data through Twitter. Further information concerning the matter can be found in the data protection policy of Twitter at

Your data protection settings at Twitter can be changed at