Third party services (described under play and advertisements) used to improve the user experience may collect and store user data. Outside of these third party services no user data, personally identifiable or otherwise, is collected or stored by us.

Play:

We use the third party tool Google Play Services to implement a leaderboard for our users. This service requires users to be logged in on their Google account. This service is used to store and display usernames and game scores. Additional user information might be collected by this service, for more information see https://policies.google.com/privacy .

Advertisements:

We use the third-party tool Google Admob to serve advertisements to our users. Admob collects data and uses a unique identifier (Google Advertisement ID on android and Apple IDFA on iOS) on your device to serve personalized advertisements. For more information about Google Admob, the information they collect and how to turn off personalized advertisements see https://policies.google.com/technologies/ads and https://policies.google.com/technologies/partner-sites .

Children:

The above third party services do not address children under 13 . We do not knowingly collect data or information from children under the age of 13. If you are a parent or guardian and are aware that your child has provided us with personal information through the above third party services, the earlier provided links can be consulted in order to immediately remove any stored data. For additional information on Google accounts for children see https://support.google.com/families .

Contact:

Do not hesitate to contact us if you have any further questions via an e-mail to the following address: sigmasums@googlegroups.com .