AnswerThis vs Paperguide

AnswerThis

• Graduate students writing a literature review for a thesis
• Clinical and medical teams running systematic reviews
• Researchers who keep their references in Zotero or Mendeley
• Writers who want search, library and drafting in one tab

Paperguide

• Teams running systematic reviews that need documented screening decisions
• Researchers who want search, references and writing in one workspace
• Students and academics, who get 30% off with a university email
• Pulling the same data points out of many papers into one table

AnswerThis

• Pro includes 10 Max queries and 2 systematic reviews a month; unlimited systematic reviews start on Research.
• The marketing pricing page and the in-app pricing page disagree on tier names and limits; the plans here follow the in-app page.
• The marketing page also lists separate Industry plans at higher prices, starting at $90 per seat a month billed monthly.
• Only a web app is listed; the site mentions no mobile or desktop apps.

Paperguide

• The Free plan has no systematic reviews or shared workspaces and is limited to 20 AI searches and 2,000 AI credits a month.
• AI features draw on a monthly credit pool: 12,500 on Plus, 50,000 on Pro and 150,000 on Evidence.
• Dual-reviewer screening for systematic reviews needs the Evidence plan, at $89 per seat / month billed annually.
• Image and table extraction is marked as coming soon on the pricing page.

AnswerThis

Cited search and chat

Ask a question or paste a protocol, then filter by database, journal quality, date and study type. Each answer carries clickable citations that jump to the passage they rely on.

Library

Collections, tags, highlights and full-text search across the papers you save or upload, with sync to Zotero and Mendeley.

AI Writer

Import a draft or start a new one, cite from the library in one click, check for AI-written or plagiarized text and switch between more than 2,000 citation styles.

Systematic review pipeline

Screening, data extraction, meta-analysis and evidence grading run in one workflow with each change logged. The site describes it as PRISMA and Cochrane compliant.

Shared workspaces

Co-authors can be invited into a shared workspace to suggest changes, with roles and permissions set by the owner.

Research gaps and citation maps

Separate tools look for research gaps, map citations, run bibliometric analysis and draw diagrams from the literature.

Paperguide

AI Search

Ask a research question in plain language and get a synthesized answer drawn from more than 200 million papers, with each claim linked to its source.

Systematic reviews

Screens papers against a predefined protocol with cited evidence for each criterion, then produces verified extraction tables, a report and a PRISMA diagram. Dual-reviewer screening is on the Evidence plan.

Reference manager

Imports from Zotero or Mendeley, or by DOI, URL, PDF, BibTeX or RIS, fetches metadata and open-access PDFs, and formats citations in more than 1,000 styles.

Extract Data

You define the columns and the AI fills them across the selected papers, with every value linked to the statement it came from. Tables export to CSV or Excel.

Research Agent

Investigates a topic across the paper database and your library, answers questions about one or several PDFs, and can generate a literature review of up to 50 papers.

AI Writer

Drafts and edits documents with citations from your library and the paper database, and exports them as Word, PDF or LaTeX files.

AnswerThis

• Free$0

  Search across 250M+ papers with cited answers and summaries, 5 saved projects and export to Zotero, Mendeley and EndNote.

• Pro$14

  per month, billed yearly ($168); $35 billed monthly

  Unlimited basic queries, 10 Max queries and 2 systematic reviews a month, unlimited library storage and the AI Writer on standard models.

• Research$30

  per month, billed yearly ($360)

  Unlimited systematic reviews, 50 Max queries a month on advanced research models, full-text AI screening and an onboarding call.

• Max$100

  per month, billed yearly ($1,200)

  300 Max queries a month on frontier models, unlimited systematic reviews and library, and priority support.

Paperguide

• Free$0

  2,000 AI credits and 20 AI searches a month, 500 MB of reference storage, and extraction tables of up to 10 papers and 5 columns.

• Plus$12

  per seat / month, billed annually ($144); $19 billed monthly

  12,500 AI credits a month, systematic reviews of up to 1,000 papers, unlimited AI searches and reference storage, and shared workspaces.

• Pro$29

  per seat / month, billed annually ($348); $49 billed monthly

  50,000 AI credits a month, systematic reviews of up to 5,000 papers and 500 Search API requests a month.

• Evidence$89

  per seat / month, billed annually ($1,068); $149 billed monthly

  150,000 AI credits a month, PRISMA-grade dual-reviewer screening, a dedicated support channel and 1,500 Search API requests a month.

• EnterpriseCustom

  Custom AI credits, systematic reviews of up to 20,000 papers, dual-reviewer screening and a dedicated support channel.

AnswerThis

• Annual discount

  Save 60% with annual billing

  The in-app pricing page labels annual billing as saving 60%. Pro is $14 a month billed yearly ($168 up front) against $35 a month billed monthly.

Paperguide

• Annual discount

  Save up to 41% with yearly billing

  Billed yearly, Plus is $12 a seat per month against $19 billed monthly, Pro is $29 against $49 and Evidence is $89 against $149. The pricing page labels the saving as 41%.

• Education

  30% academic discount with a university email

  Verifying a university email takes 30% off: Plus becomes $8, Pro $20 and Evidence $62 per seat / month billed yearly, or $13, $34 and $104 billed monthly.