| Price from | Free | $10/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 1 | 3 |
| Spec score · Retrospective Software | 7.6 (#20) | 8.0 (#9) |
| Headquarters | France | Copenhagen, Denmark |
| Purpose | Paraboll is an online retrospective tool for agile teams to run collaborative sprint retrospectives. | Reetro is a retrospective tool for Agile teams to gather feedback, collaborate, and track action items. |
| Support | The maker lists [email protected] for questions and security issue reports. | Reetro lists self-service help, email, live chat, and phone support channels, and says a human usually replies to email within one business day. |