PPTMON
5.9#26 in presentation template librariesFree planFree planWeb
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PPTMON suits people creating presentations in Google Slides or PowerPoint who want templates across several subject areas. Its terms allow commercial presentation use, provided users follow the attribution and file-use requirements.
SlideEgg may suit people who want to create presentations from prompts in a web browser, with PPTX export and brand controls. Its free plan offers a way to start with limited downloads and AI credits.