| Price from | Free | €499/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 7 | 5 |
| Spec score · Audience Response Systems | 9.4 (#4) | 8.7 (#20) |
| Anonymous responses | Yes | Yes |
| Audience limit | 200 | 50 |
| Free plan | Yes | Yes |
| Headquarters | London, UK | Plovdiv, Bulgaria |
| Live polling | Yes | Yes |
| Live Q&A | Yes | Yes |
| Quiz mode | Yes | Yes |
| Support | GetApp lists chat, 24/7 live representative support, FAQs/forums and email help desk support. | The pricing page lists email support for Pro, priority support for Business, and dedicated support plus an SLA for Enterprise; the contact section says replies arrive within 24 hours. |
| What it does | Hypersay Slides turns uploaded presentations into live interactive sessions with audience participation. | VotaFlow is an online voting, polling, and survey platform for HOA meetings, events, and company polls. |
