I'm playing with Flightrecorder24 at the moment - not specifically for that purpose, but it seems to do that quite well (I'm interested in it as a cheap flight data recorder - on which the jury is still out at the moment). Various gliding / paragliding / etc. competitions seems to be using it for tracking purposes.
It costs a bit over £2 on Android, and may be what you're after.
https://play.google.com/store/apps/d...recorder&hl=en
https://plus.google.com/communities/...71607184334239
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