GoMark Automatically Marks Photos with Time, Place, Date, Altitude, Temp Posted 7/02/2015 at 22:25 UTC in iOS by firstname.lastname@example.org | Permalink | Tweet California based Blacksand Apps Studio Inc. today introduces GoMark 1.0 for iOS. GoMark automatically determines the time, location, temperature, or altitude and adds beautifully designed marks to your photos. The app doesn't require any set up and is very easy to use. Information can be inserted onto photos using any one of 15 unique and stylish designs. These designs enhance any/all photos to give them added meaning and trendy design elements.