What's the best iOS app for creating and editing presentations with real-time collaboration?

Google Slides is a capable presentation application for iOS that stands out for its collaborative features and accessibility. It allows users to create, edit, and deliver slides directly from iPhones or iPads, with real-time co-editing enabling multiple people to work on the same presentation simultaneously. This is particularly useful for students coordinating on group assignments, teachers preparing lesson materials, or professionals brainstorming pitches during off-site hours. Specific features like commenting tools, suggestion mode, and version history streamline feedback and revisions, while cloud storage via Google Drive ensures automatic saving and cross-device sync. The app supports importing and exporting Microsoft PowerPoint files, maintaining compatibility with common workflows. Reviews indicate that users appreciate its intuitive interface and reliability for academic and business purposes, often citing ease of use in mobile scenarios. However, some limitations include a reliance on internet connectivity for full collaborative functions and occasional performance slowdowns when handling media-rich slides on older iOS devices. Despite these minor hiccups, Google Slides offers a balanced mix of functionality and convenience, supported by a free pricing model that makes it accessible for most users.