If you need a desktop application without paying for a subscription, these open-source and free alternatives are compatible with .pptx files: Microsoft PowerPoint - App Store - Apple
Downloading "cracked" or pirated versions of Microsoft PowerPoint is highly discouraged due to several serious risks: Download Microsoft Powerpoint Cracked Version
: The PowerPoint app is free to download and use on mobile devices and tablets with screen sizes under 10.1 inches. If you need a desktop application without paying
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