List your tool

Head to head · 2026

Afforai vs ChatDOC

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Afforai

Rebranded to Logically, with three distinct search modes in one box

4.3$7/mo

Visit Afforai (opens Afforai in a new tab)

ChatDOC

Chat with PDFs where every answer cites the passage it came from, backed by its own…

3.9Free

Visit ChatDOC (opens ChatDOC in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: ChatDOC does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Afforai

    4.3 against 3.9

  • Same job?

    Yes

    Both are Research tools

Side by side

Compared onAfforaiChatDOC
Our rating4.3Better3.9
Starts at$7/moFree
Free planYesYes
CategoryResearchResearch
PlansFrom $7/moFree
Key features
  • Three separate search modes: own documents, Semantic Scholar, and open web
  • Access to 200+ million peer-reviewed papers via Semantic Scholar
  • Inline citations tied to specific source passages
  • Rebranded from Afforai to Logically in 2025
  • Used by researchers at Yale, Duke, and other universities
  • Answers cite the source passage in the document
  • Standalone PDF parser available as an API
  • ChatPaper for academic reading
  • Chrome and Edge extensions
  • Unlimited pages, files and folders on paid tiers
Pros
  • Mode separation keeps private, academic, and web sources clearly distinct
  • Broad peer-reviewed coverage through Semantic Scholar integration
  • Free tier available for standard use
  • Visible citations make answers checkable rather than merely plausible
  • Separate parser API signals effort went into the hard foundation
  • Handles document collections, not one file at a time
Cons
  • Recent rebrand and domain change may cause confusion for existing bookmarks or links
  • More features require a paid plan
  • Three-mode structure adds a decision step compared to a single search box
  • A citation proves provenance, not correct interpretation
  • Complex tables and scans remain hard for any parser
  • Unlimited usage sits behind the paid tiers
CompanyAfforai, founded 2023ChatDOC

Prices come from each vendor's pricing page, last checked 20260901. Check the vendor before you buy.

FAQ

Questions people ask

Is Afforai better than ChatDOC?

In our reviews Afforai scores 4.3 and ChatDOC scores 3.9. The better pick depends on the job. Afforai: Rebranded to Logically, with three distinct search modes in one box. ChatDOC: Chat with PDFs where every answer cites the passage it came from, backed by its own document parser and API.

Which is cheaper, Afforai or ChatDOC?

Afforai: from $7/mo. ChatDOC: free.

Do Afforai and ChatDOC have free plans?

Yes, both have a free plan.

More comparisons