Yes, it's free to download the SDK and use it to build test applications for your evaluation purpose. The free trial version will add a watermark in every recorded video. If you of the SDK, you will get a license key for unlocking the full SDK, and then you can use the SDK to build your applications for production, no more watermark will be added.
No, it won't. If you have bought a license of the SDK and activated it in your applications, the watermark won't appear in your recorded videos any more.
It's one-time cost for a royalty-free lifetime license. No monthly / yearly cost.
Instantly, when your payment is complete, our registration system will automatically send you an email with your license key in it. Occasionally the email might go to your SPAM folder mistakenly. So, please also check your SPAM folder if your license key is not arrived in a timely manner. Or you may . Or for help.
Please be aware that your license key only works with the binary and library files of the SDK edition you have purchased. Say, if you have purchased a license of the SDK Std Edition, you will fail to validate your license key if your application is built with the binary and library files of the SDK Pro Edition or Max Edition. You should copy the binary and library files of the correct SDK edition to your project folder in order to get your license key to work.
No, you won't. Online download is the most efficient way to deliver software to users today. Our SDK is small and actively updated, the SDK burned to a DVD / CD will be outdated very soon. So we provide online downloads only. If you need a backup copy, you may burn the SDK to a DVD / CD yourself.
Yes, you can use the licensed SDK in multiple projects of yours or your company's. You cannot use it in the projects you don't own. And you are not allowed to authorize any 3rd-parties to use your license key to activate the SDK in their projects.
No, you can't. The SDK license is not transferable due to the nature of the product.
No, the SDK doesn't work with a Mac. It's currently for Windows platforms only. Maybe we will implement a Mac version in the future.