Is there a free version or a trial?
Zubtitle does offer a free subscription that includes two videos per month. Each video created will include a Zubtitle watermark on that video as well.
If you decide to upgrade your subscription, the watermark can be removed from the video by using the 'Reset to Draft' link on the download page of that video and then pressing the Download and Render button to re-finalize that video again.
For more information, visit the pricing page: https://app.zubtitle.com/pricing