All observations, location information and other data that you record in the MushroomLog App is stored solely on your phone. None of this data is collected anywhere else. No personal information is collected by MushroomLog. MushroomLog does have the capability for you to send observations or even an entire foray to another MushroomLog user via AirDrop, iMessage, or eMail, but you must manually initiate this transfer. It also provides a way for you to upload individual observations to MushroomObserver.org, but again, you must initiate each transfer manually.