iTunes makes it hard for people to get refunds for apps they don’t like – you have to send an email to Apple, and they won’t always provide a refund. Android too – on the Android Market, you can only get a refund within 15 minutes of your download.
That’s not how we think it should work though – if you don’t like our apps for any reason, send us an email at gaia@gaiagps.com, and we’re happy to provide a refund, no questions asked.