Eustace vs Signal
| Eustace | Signal | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $15/mo | — |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | Yes | Yes |
| Claim detection | Yes | Yes |
| Citation links | Yes | Yes |
| Source types | web | web |
| Fact-check mode | assisted | automatic |
| Supported content | text, URLs, PDFs, Word files | claims, headlines, URLs |
Both are listed in Best AI Fact-Checking Tools. On Inferse, Eustace scores higher on our published basis.