Shortlist by what you need
Start here if you know why you are leaving SciSummary.
Want the closest match?
PaperBrainMost similar to SciSummary in what it does, its category and its price.
Visit (opens PaperBrain in a new tab)Need a free plan?
UndermindHas a free plan, rated 4.4 out of 5.
Visit (opens Undermind in a new tab)Want to pay less than SciSummary?
HumataFrom $1/mo, against from $9/mo for SciSummary.
Visit (opens Humata in a new tab)Want the best rated?
ScholarcyRated 4.3 out of 5 in our review, against 4.1 for SciSummary.
Visit (opens Scholarcy in a new tab)
At a glance
Green means better than SciSummary, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 SciSummaryBaseline | 4.1 | $9/mo | Yes | Chats with a paper's figures and statistics directly, not just its text | |
| PaperBrain | 3.6−0.5 | Free | Yes | Search, read and summarise scientific papers through a single interface. | vs SciSummary |
| Scholarcy | 4.3+0.2 | $5/mo$4 less | Yes | Turns each paper into a structured flashcard-style summary | vs SciSummary |
 Explainpaper | 3.7−0.4 | Free | Yes | Upload a research paper, highlight the part that lost you, and get that specific passage explained. | vs SciSummary |
 SciSpace | 4.2+0.1 | $12/mo$3 more | Yes | Started as a journal-formatting tool, now a broader AI research assistant | vs SciSummary |
| Undermind | 4.4+0.3 | $20/mo$11 more | Yes | Refines a literature search through follow-up questions, built by MIT physics PhDs | vs SciSummary |
 Genei | 3.8−0.3 | $3.99/mo$5.01 less | No | AI research assistant that summarizes PDFs and papers and manages citations for academic and professional writing. | vs SciSummary |
| Humata | 4.3+0.2 | $1/mo$8 less | Yes | Per-page pricing for chatting with large documents beyond academic papers | vs SciSummary |
 Zendy | 4.1Same | Free | Yes | Accessible, mission-driven access to journals, not a document-upload tool | vs SciSummary |
The alternatives in detail
In order of how closely each one matches SciSummary.
PaperBrain
3.6Free
vs SciSummary−0.5
Search, read and summarise scientific papers through a single interface.
- Search across scientific literature from one interface
- Summaries to triage whether a paper deserves a full read
- Content generation from the papers you collect
Compresses the triage step that dominates a literature review
Summaries are a filter, never a substitute for the source
Scholarcy
4.3$5/mo
vs SciSummary$4 less+0.2
Turns each paper into a structured flashcard-style summary.
- Flashcard-style structured summary cards for each paper
- Browser extension generating summaries directly on a paper's page
- Free tier for standard use
Flashcard format suits fast triage of many papers well
Summary-card format is less suited to deep follow-up questions than a chat interface
Explainpaper
3.7Free
vs SciSummary−0.4
Upload a research paper, highlight the part that lost you, and get that specific passage explained.
- Highlight any passage for a targeted explanation
- Works on uploaded PDFs of research papers
- Explanations at adjustable complexity
Highlight-to-explain targets what actually blocks a reader
Explanations can be fluent and subtly wrong
SciSpace
4.2$12/mo
vs SciSummary$3 more+0.1
Started as a journal-formatting tool, now a broader AI research assistant.
- Deep journal-formatting and citation-template capability from its Typeset.io origin
- AI-powered literature review and PDF chat across 280+ million papers
- Free tier for standard use
Combines AI research assistance with genuinely deep formatting capability
Broad feature set adds more surface area to learn than a single-purpose tool
Undermind
4.4$20/mo
vs SciSummary$11 more+0.3
Refines a literature search through follow-up questions, built by MIT physics PhDs.
- Conversational, follow-up-question-driven search refinement
- Full-text search beyond just paper abstracts
- Founded by two MIT-trained quantum-physics PhDs
Follow-up-question refinement addresses vague or broad initial queries well
Significantly higher usage limits require a paid plan
Genei
3.8$3.99/mo
vs SciSummary$5.01 less−0.3
AI research assistant that summarizes PDFs and papers and manages citations for academic and professional writing.
- PDF, webpage, and research-paper summarization
- Multi-document search and question-answering
- Automatic citation and reference generation
Entry price of £3.99/month undercuts most academic research-assistant tools
No permanent free plan, only a 14-day trial
Humata
4.3$1/mo
vs SciSummary$8 less+0.2
Per-page pricing for chatting with large documents beyond academic papers.
- Chat interface for large, long-form documents beyond academic papers
- Per-page pricing model scaling with document volume
- Positioned for contracts, patents, and financial filings
Broader document scope than tools focused narrowly on academic papers
Per-page pricing can cost more than a flat tier for steady, high-volume use
Zendy
4.1Free
vs SciSummarySame
Accessible, mission-driven access to journals, not a document-upload tool.
- Unlimited access to a large licensed library of journals and articles
- Priced around the cost of a single research paper
- ZAIA AI assistant answering questions from within the library
Addresses literature-access cost directly, not just document processing
Expanded access requires a Zendy Plus subscription
FAQ
Questions people ask
Is SciSummary free?
SciSummary has a free plan, and paid plans start from $9/mo.
What is the best free alternative to SciSummary?
Undermind is the highest-rated alternative here with a free plan (4.4 out of 5). Other free options: Scholarcy, Humata, SciSpace.
What is the cheapest alternative to SciSummary?
Among paid plans, Humata has the lowest starting price (from $1/mo). If you need it free, start with Undermind.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.