| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 7 | 1 |
| Spec score · Audience Response Systems | 9.4 (#4) | 7.5 (#88) |
| Spec score · Interactive Presentation Software | 9.3 (#2) | 7.6 (#28) |
| Free plan | Yes | No |
| Live Q&A | Yes | Yes |
| Support | GetApp lists chat, 24/7 live representative support, FAQs/forums and email help desk support. | The site directs users to [email protected] for feedback and suggestions, and the terms list [email protected] for support inquiries. |
| What it does | Hypersay Slides turns uploaded presentations into live interactive sessions with audience participation. | Opinexa is a platform for creating and managing interactive presentations with real-time audience engagement features. |
