AnswerThis vs Sysrev
AnswerThis uniquely has 12 features · Sysrev uniquely has 8 features.
| AnswerThis | Sysrev | |
|---|---|---|
| Company | ||
| Founded | — | 2017 |
| HQ | — | Baltimore, USA |
| AI model | Claude Opus 4.5 (Max plan); proprietary ensemble for other tiers | Proprietary |
| User base | 200,000+ | — |
| Platforms | Web | Web |
| Languages | English primarily; multilingual search via 300M+ paper database | English only |
| Pricing | ||
| Pricing model | Freemium | Freemium |
| Free plan | Yes | Yes |
| Free trial | No — free tier available indefinitely | No |
| Starting price | $35/mo | $0/mo |
| Enterprise | Custom | Contact Us |
| All plans | Free$0/moPro$35/moResearch$75/moMax$250/moEnterpriseCustom | BasicFreePremium$50/mo per memberEnterpriseContact Us |
| Positioning | ||
| Best for | Academics, researchers, medical professionals, students, and pharma/biotech teams needing citation-backed literature reviews | Researchers, academic institutions, and organizations conducting systematic literature reviews and document data extraction |
| Differentiator | Combines a 300M+ paper database with PRISMA-compliant systematic review pipelines, full-text AI screening, and risk-of-bias assessments purpose-built for pharma, biotech, and academic researchers. | Combines AI-powered auto-labeling with human review workflows for flexible, scalable document data extraction across PDFs, title-abstract pairs, plain text, and structured JSON. |
| Competitors | Elicit, Consensus, SciSpace, Semantic Scholar, Research Rabbit, Iris.ai | Rayyan, Covidence, DistillerSR, Abstrackr, Iris.ai |
| Features | ||
| AI Writer with Citations | ✓ | — |
| Basic Queries | ✓ | — |
| Extended Thinking AI | ✓ | — |
| Group Labels | — | ✓ |
| Library Storage | ✓ | — |
| Sysrev Analytics | — | ✓ |
| Sysrev Auto Labeler | — | ✓ |
| Systematic Reviews | ✓ | — |
| Unlimited Private Projects | — | ✓ |
| Unlimited Project Reviewers | — | ✓ |
| Unlimited Public Projects | — | ✓ |
| Zotero & Mendeley Sync | ✓ | — |
| Academic Search | ✓ | ✕ |
| AI Summarization | ✓ | ✓ |
| API Access | — | ✓ |
| Browser Extension | ✕ | ✕ |
| Citation Generation | ✓ | — |
| Data Privacy | ✓ | ✓ |
| Document Upload | ✓ | ✓ |
| Export Formats | PDF, export papers/citations; submission-ready evidence tables | Yes — data export (CSV/JSON implied); user owns and can export data at any time |
| Fact Checking | ✓ | ✕ |
| Follow Up Questions | ✓ | ✕ |
| Mobile App | ✕ | ✕ |
| Multi Source Synthesis | ✓ | ✓ |
| Team Collaboration | ✓ | ✓ |
| Web Search | ✓ | ✕ |
| Integrations | ||
| API Access | — | ✓ |
| Browser Extension | ✕ | ✕ |
| Google Docs Export | — | ✕ |
| Key Integrations | Zotero, Mendeley, SSO/SAML (Enterprise), institutional systems (Enterprise) | API access, JSON data import/export, structured data portability |
| Notion Integration | — | ✕ |
| Zotero Integration | ✓ | — |