Presen Vid - Makes it easy to create presentation videos
VoiceThread - Transforming media into collaborative spaces with video, voice, and text commenting.
Excalideck - An app for authoring slide decks that look hand-drawn.
mmhmm - Bring yourself and your personality into your video chats
Hexcord - Create presentations that you can livestream to YouTube
Showcase Workshop - Showcase Workshop turns your iOS, Android, or Windows device into a powerful sales, presentation, and training toolkit.