Google AdMob

Google AdMob is used to serve advertisements in most of my apps.

To better protect your privacy, Google AdMob has been configured to never send your location to Google within my apps. This means my apps do not take part in "location-based" advertising.

You may opt out of "targeted advertising" for all Google Advertising software by going to this official Google link: Opt out of seeing personalized ads, choosing "If you're signed out of your Google Account", and following the instructions for "Opt out of Ads Personalization Across the Web".

If you do not opt out of this "targeted advertising" Google may use your device ID to generate interest and demographic categories about you (i.e. "sports enthusiast" or "inferred age: 18-34"). These interest and demographic categories will be used to serve targeted ads to you.

Google Fabric

Google Fabric reports crashes and collects anonymous usage statistics from most of my apps. These automated crash reports are combined with user bug reports to enhance the quality of my apps. Google Fabric runs "hidden" in the background, but is very lightweight. The anonymous usage statistics include:

Apple In-App Purchases

The only In-App Purchase I occasionally offer is a fee to remove ads from a particular app. Apple handles all aspects of the payment for the In-App Purchase. Your payment information is not stored on my private servers.


David Gross Apps servers do not not collect your email address, any URLs you came from, or payment information. They do not set HTTP cookies or "web beacons" in any way on visitors' computers.


Most of my apps use HTTPS right now, but it is not needed since no personally identifiable information is ever transmitted. All Google AdMob requests, Google Fabric requests, Dropbox requests, and Apple In-App Purchase requests are done over HTTPS.


Access logs are kept with IP address and User Agent. These logs are used to identify and alleviate hacking attempts and to determine if the services are under a heavier load.


Private server backups are done daily. There is no personally identifiable information in these backups.


There is no email subscription list for my apps.