AnswerThis vs SciSpace
We give AnswerThis and SciSpace the same GPA: 3.2 out of 4.0. They get the same grade on all five counts.
Price, platforms and features side by side. The table says where each price was read and when.
AnswerThis
AI literature review assistant with a library and writer
SciSpace
AI research platform for literature review and reading papers
How we grade them
| 3.2GPAAnswerThisVery good | 3.2GPASciSpaceVery good | |
|---|---|---|
| Value for money | BPro is $14 a month billed yearly, so $168 up front, and that's about what these tools usually cost. It buys unlimited basic queries, 10 Max queries and 2 systematic reviews a month. Monthly billing is $35, which is steep, and unlimited systematic reviews start on Research at $30. | BPremium is $12 a month billed annually, or $20 monthly, which is typical here. It comes with 1,200 credits a month and up to 4 tasks at once. Need more and it's a big step: Advanced is $70 for 10,000 credits. These prices are from an archived copy of the pricing page, captured on September 30, 2026. |
| Free plan and trial | BNo card needed. You get cited answers and summaries across 250M+ papers, 5 saved projects and export to Zotero, Mendeley and EndNote. The listing can't say how many questions that covers, though, and 5 projects won't stretch far across a thesis. | BA free tier is reported, but SciSpace's site turned automated readers away, so its limits couldn't be confirmed on a SciSpace page. We'd sign up and look before planning a project around it. |
| Features | AFilters for database, journal quality, date and study type, answers whose citations jump to the passage, a library with highlights and full-text search, and an AI Writer with over 2,000 citation styles. There's a systematic review pipeline too, with screening, data extraction and PRISMA reporting. | ALiterature Review answers from more than 270 million papers with references, Chat with PDF explains a single paper, and Extract Data pulls the findings out of several PDFs so you can compare them. Add agents, an AI writer, a paraphraser and a citation generator with more than 2,300 styles. |
| Ease of use | BNo App Store rating to go on, so B is as high as we go. Search, library and writing sit in one tab, which is tidy. Less tidy: the marketing pricing page and the in-app one disagree on plan names and limits. | BNo App Store rating on record, so B is as high as we go. Ask in plain language, or highlight a bit of maths or a table and have it explained. The part to learn is credits, since the agents draw on a monthly allowance. |
| Platforms and integrations | BWeb only: the site mentions no mobile or desktop apps. It does sync with Zotero and Mendeley, exports to EndNote, and works with PubMed, Embase and Cochrane. | BWeb, an iPhone and iPad app, and a Chrome extension that explains highlighted text on any page and replies in 13 languages. No Android app was found on Google Play in the US when checked, and the listing shows no integrations with other tools. |
| Best for | literature reviews from search to draft | search, reading and writing in one place |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: AnswerThis and SciSpace. How we grade
Where they differ
- AnswerThis starts at $14 per month, billed yearly ($35 billed monthly). SciSpace starts at $12 per month, billed annually ($20 billed monthly).
- Only SciSpace lists an iOS app.
- Only SciSpace lists a browser extension.
- AnswerThis also covers long-form writing.
- SciSpace also covers chat assistant.
At a glance
| AnswerThis | SciSpace | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $14 per month, billed yearly ($35 billed monthly) | $12 per month, billed annually ($20 billed monthly) |
| Free plan | Search across 250M+ papers with cited answers and summaries, 5 saved projects and export to Zotero, Mendeley and EndNote. No card required. | Third-party listings report a free tier, but its current limits could not be read: SciSpace's site turned automated readers away, and the archived pricing data covers paid plans only. |
| Free trial | None listed | None listed |
| Web | ||
| iOS | ||
| Browser extension | ||
| Made by | AnswerThis | PubGenius Inc. |
| Price read from | app.answerthis.io | web.archive.org (not the vendor's own page) |
| Checked | Oct 9, 2026 | Oct 5, 2026 |
Who each one suits
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
SciSpace
- Students and researchers who want search, reading and writing tools in one place
- Getting plain-language explanations of dense papers, equations and tables
- Research teams of 2 to 300 people billed per user
Worth knowing
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.
SciSpace
- SciSpace's site blocked automated reading, so prices come from an Internet Archive copy of its pricing page captured on September 30, 2026.
- The limits of the free tier could not be confirmed on a SciSpace page.
- Paid plans meter usage in monthly credits: 1,200 on Premium, 10,000 on Advanced and 40,000 or more on Max.
- The mobile app is listed for iPhone and iPad; no Android app was found on Google Play (US) when checked.
Key features
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.
SciSpace
- Literature Review
- Ask a research question in plain language and get answers drawn from a repository of more than 270 million papers, each with references to its sources.
- Chat with PDF
- Ask questions about a paper or PDF and get answers backed by citations that point to where in the source they came from.
- SciSpace Agent and Biomedical Agent
- Agents take on research tasks and draw on the plan's monthly credits. Each plan also caps how many tasks run at once: 4 on Premium, 8 on Advanced and 16 on Max.
- Writing and citation tools
- AI Writer, Paraphraser and AI Detector sit beside a Citation Generator that formats references in APA, MLA and more than 2,300 other styles.
- Extract Data
- Pulls the summary, conclusions and findings out of several PDFs at once so papers can be compared side by side.
- Chrome extension
- Explains highlighted text, math and tables on any web page or PDF, answers follow-up questions with citations and replies in 13 languages.
Plans
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.
SciSpace
Premium$12
per month, billed annually ($144); $20 billed monthly
1,200 credits a month and up to 4 concurrent tasks.
Teams (Premium)$15
per user / month, billed annually ($180); $25 billed monthly
For 2 to 300 users, each with 1,200 credits a month and up to 4 concurrent tasks.
Advanced$70
per month, billed annually ($840); $90 billed monthly
10,000 credits a month and up to 8 concurrent tasks.
Teams (Advanced)$75
per user / month, billed annually ($900); $100 billed monthly
For 2 to 300 users, each with 10,000 credits a month and up to 8 concurrent tasks.
MaxFrom $160
per month, billed annually ($1,920); from $200 billed monthly
Priced by credit tier, from 40,000 credits a month up to 300,000, with up to 16 concurrent tasks.
Teams (Max)$175
per user / month, billed annually ($2,100); $220 billed monthly
For 2 to 300 users, each with 40,000 credits a month and up to 16 concurrent tasks.
Ways to pay less
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.
SciSpace
- Annual discount
Save 20% to 40% with annual billing
Annual billing brings Premium from $20 to $12 a month (40% off), Advanced from $90 to $70 (22% off) and the entry Max tier from $200 to $160 (20% off).
