Unriddle

Freemium

A tool for learning, simplifying topics, and summarize content.

Unriddle (Anara) is an AI workspace built for scientists, students, and research teams to manage academic workflows. The platform enables users to search academic databases, extract passages, and organize research into a searchable library with automatic citations. Key features include flashcard generation from textbooks and a unified environment for reading and writing scholarly content. (verified: 2026-01-31)

Jan 31, 2026
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Pricing: Freemium
Last verified: Jan 31, 2026
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Key facts

Pricing

Freemium

Use cases

Academic researchers searching databases like PubMed, arXiv, and JSTOR to extract key passages and generate scholarly answers for their projects., Students uploading lecture slides and textbooks to automatically generate tailored flashcards and multiple-choice practice quizzes for exam preparation., Research teams building a centralized searchable library to organize files, collaborate on folders, and manage citations with automatic referencing.

Strengths

Integrates directly with major academic databases including PubMed, arXiv, and JSTOR to provide evidence-based answers and citations., Supports large-scale document analysis with the ability to import files up to 10,000 pages or 300MB for Pro tier users., Provides native connectors for reference management software like Zotero and Mendeley to streamline the academic writing and citation process.

Limitations

The Free plan restricts users to 1,000 AI words per day and a maximum of 5 file uploads (verified: 2026-01-31)., Advanced AI models such as Gemini 3 Pro and Claude Opus 4.5 are gated behind the Max and Enterprise tiers (verified: 2026-01-31).

Last verified

Jan 31, 2026

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Strengths

  • Integrates directly with major academic databases including PubMed, arXiv, and JSTOR to provide evidence-based answers and citations.
  • Supports large-scale document analysis with the ability to import files up to 10,000 pages or 300MB for Pro tier users.
  • Provides native connectors for reference management software like Zotero and Mendeley to streamline the academic writing and citation process.

Limitations

  • The Free plan restricts users to 1,000 AI words per day and a maximum of 5 file uploads (verified: 2026-01-31).
  • Advanced AI models such as Gemini 3 Pro and Claude Opus 4.5 are gated behind the Max and Enterprise tiers (verified: 2026-01-31).

FAQ

What are the specific daily usage limits for users on the Free tier?

Users on the Free plan are limited to 1,000 AI words per day and 5 file uploads. Each imported file is restricted to a maximum size of 20 MB or 120 pages. These limits are reset daily to allow for ongoing basic research tasks (verified: 2026-01-31).

Which academic databases does the platform search to provide scholarly responses?

The platform searches major academic databases including PubMed, arXiv, and JSTOR. This allows the tool to deliver comprehensive, scholarly answers to questions while ensuring that the information provided is backed by peer-reviewed research and proper academic citations (verified: 2026-01-31).

How does the platform support collaboration between different researchers or team members?

The platform provides organized workspaces where teams can collaborate on projects. The Plus plan allows for 5 collaborators per folder, while the Pro plan supports up to 50 collaborators. Enterprise users can also sync files live with Notion, OneDrive, and SharePoint (verified: 2026-01-31).