The YubNub Command Line Android application does not collect or store any information. Of course, any command you send off to the YubNub web application will be send to and processed by the YubNub web app at yubnub.org. And even before you start a search, a request is send to the web service to request the manual text for the command you have typed in. The YubNub web app is not controlled by the developer of the YubNub Command Line Android application. Any use of information by the web app is outside of my controll and you should refer any question to the creator of the YubNub web service.