Kindle Fire owners with a background in Android may be surprised to discover that all sales are final at the Amazon Appstore. Unlike the Android Market which gives you a 15-minute window to request a refund for any app, the Amazon store does not accept returns. This is also different from the rest of Amazon which, in general, has a very consumer-friendly return policy.
The policy is spelled out in section 2.5 of the Terms of Use for the Amazon Appstore for Android:
2.5 All Sales Final. All purchases of Apps and Amazon-Sold In-App Products are final. We do not accept returns of Apps or Amazon-Sold In-App Products. Once you have purchased an App or Amazon-Sold In-App Product, we encourage you to download (if applicable) and access it promptly to be sure you have received it. If you are unable to complete a download or access an App or Amazon-Sold In-App Product, please contact Amazon customer service for assistance. Once you purchase an App or Amazon-Sold In-App Product and we make it available to you, you bear responsibility for completing the download (if applicable) and for all risk of loss after downloading or accessing the App or Amazon-Sold In-App Product, including any loss due to a mobile device malfunction.
Amazon does point out its Appstore includes free trials so customers can try out an app before buying. But once you hit that “Buy” button, though, there’s no turning back.
[Via Amazon Appstore Terms of Use]

