With the Free subscription, you can’t. We are proud to empower anyone to create compelling, high-quality, and fun simpleshow videos for free. Accepting our branding logo is the only thing we ask for in return 🙂
With the Business subscription, you can hide the simpleshow video maker watermark in the Finalize stage.
You are able to upload your own watermark in the Pro subscription. Take a look at this article: How do I use the Finalize stage?