Currently used applications :

• Pages,
• Slides,
• Keynotes,
• Genial.ly,
• Framasoft,
• Microsoft Powerpoint

Recommandation :
* As long as the presentations are exported in a universal format, keeping duplicate tools is not a major problem.
* If a presentation is created collectively, Google Slides should be your first choice since it is also completely integrated with Drive, YouTube and Google Photo.

web documentation
Next CRIBOOT workshop can tackle the challenge of deciding on a united communication application.