ClassPoint - ClassPoint is an all-in-one, interactive teaching tool designed to improve presenting efficiency and teaching with PowerPoint.
Pingo - Optimize images for the web quickly 🖼️⚡
Embold.io - Peer Code Review
Presentii - Imagine a tool that lets you capture audience interest in your presentation content as you present.
Graphue - Bring Your Presentations to Life With Professional Engaging Templates. Discover the best PowerPoint, Google Slides, and Keynote Presentation Templates
SlideLizard - Powerpoint plug-in for live audience interaction