Zoho Show is a great option for those who want to be able to access their presentation online on any device or who are creating a presentation as part of a group collaboration. Much like the Google Drive suite of apps, Zoho offers a variety of productivity tools that can be used via the cloud, including Zoho Show, Zoho Writer and Zoho Sheets. Slides created in Zoho Show can be exported in either the OpenDocument Presentation format or any of several PowerPoint format, which makes it compatible with several types of software. Best of all, it is available as part of the free Zoho subscription.
The video below highlights some of the features offered by Zoho Show. You can also check out a demo presentation.