Here are all the kinds of content Storytell presently supports:
Zoom Recording URL and passcode (must have transcript)
YouTube video URL (video must have CC)
Zight (Cloudapp) URL
Audio files in MP3 format
Video files in MP4 format
.txt file attachment
.zip file attachment
Any long or short block of text
Web version PDFs with web address URL
Otter URLs with transcript
Web URLs
As for our product roadmap, we're considering more integrations in future, such as:
MS Teams
Vimeo links
Google Spaces
YouTube video without captions