| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 4 | 3 |
| Spec score · Survey Panel Software | 7.6 (#4) | 7.3 (#7) |
| Spec score · Marketing Research Software | 7.7 (#18) | 7.3 (#28) |
| Headquarters | London, UK | Salisbury, Wiltshire, United Kingdom |
| Integrations | Studies can connect to most survey, annotation, and user research tools through a URL, or use Prolific’s API. | Qualzy users can export research data, including transcripts, key points, and participant submissions, directly to CoLoop for further analysis. |
| Support | The pay-as-you-go platform lists email support, while managed services include a dedicated project team and shared Slack channels. | Qualzy says its human support team covers UK, US, and Australian time zones, with no ticket queues or bots. |
| Who it is for | Prolific describes its pay-as-you-go platform as suited to teams with research expertise that want rapid, self-directed access to participants. | Qualzy describes its customers as agencies, in-house insight teams, and independent researchers. |
