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From Green Turtle Apps:
gtGpsRecorder is an App for recording tracks by continuously recording the GPS-Positions.The following functions are included:+ Recording of GPS-Positions The App is able to record an infinite number of trackpositions (only limited by the filespace availabe on your device)+ Countinuous display while recording + position, speed and distance is displayed in different units (km, NM, Miles) + Compassdisplay Direction of movement Orientation of the device + Track-View in a Map As small preview in Main-ViewAs Fullscreen-View + Defining the display of the track, run so far, center to actual position or to the entire track.+ Sampling of multiple tracks of the same day to a single trackfile+ Display of single or sampled tracks in a Map-View+ Display of additional information of recorded tracks + Start- and Endtime + Distance + Filesizes and count of positions or placemarks+ Converting of the internally used recordingformat + Recording as NMEA RMC-Sentences + Convert NMEA to KML Format and content are selectable Line, Placemarks with speed and heading in selectable time interval, Count of the positions is thinnable to create smaller filesizes of the generated KML-Files + Convert NMEA to GPX Content is selectable, with or without timestamp+ Social Media + Posting of Track-Screenshots on Facebook + Posting of Track-Screenshots on Twitter+ PDF + Send PDF via eMail + Preview with integrated PDF-Viewer + Printing via AirPrint+ Access to all generated files via iTunes+ Battery use Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.