Shortlist by what you need
Start here if you know why you are leaving Paperpal.
Want the closest match?
TrinkaMost similar to Paperpal in what it does, its category and its price.
Visit (opens Trinka in a new tab)Need a free plan?
ResearchRabbitHas a free plan, rated 4.6 out of 5.
Visit (opens ResearchRabbit in a new tab)Want to pay less than Paperpal?
HumataFrom $1/mo, against from $25/mo for Paperpal.
Visit (opens Humata in a new tab)Want the best rated?
SciSpaceRated 4.2 out of 5 in our review, against 4.4 for Paperpal.
Visit (opens SciSpace in a new tab)
At a glance
Green means better than Paperpal, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 PaperpalBaseline | 4.4 | $25/mo | Yes | Academic English-language checking from an established scholarly-editing company | |
| Trinka | 4.3−0.1 | $6/mo$19 less | Yes | A privacy-first academic writing checker with an institutional integrity product | vs Paperpal |
| SciSpace | 4.2−0.2 | $12/mo$13 less | Yes | Started as a journal-formatting tool, now a broader AI research assistant | vs Paperpal |
 Enago Read | 4.2−0.2 | $12/mo$13 less | Yes | A literature-review assistant backed by a full academic-services company | vs Paperpal |
| Humata | 4.3−0.1 | $1/mo$24 less | Yes | Per-page pricing for chatting with large documents beyond academic papers | vs Paperpal |
 PaperBrain | 3.6−0.8 | Free | Yes | Search, read and summarise scientific papers through a single interface. | vs Paperpal |
 Zendy | 4.1−0.3 | Free | Yes | Accessible, mission-driven access to journals, not a document-upload tool | vs Paperpal |
| ResearchRabbit | 4.6+0.2 | Free | Yes | A free, continuously updating visual map of papers as your collection grows | vs Paperpal |
 ScholarAI | 4.2−0.2 | $12/mo$13 less | Yes | Grew out of one of the first academic-search plugins for ChatGPT | vs Paperpal |
The alternatives in detail
In order of how closely each one matches Paperpal.
Trinka
4.3$6/mo
vs Paperpal$19 less−0.1
A privacy-first academic writing checker with an institutional integrity product.
- Privacy-first policy: no data storage, no AI training on user content
- DocuMark academic-integrity solution built for universities
- Bundled plagiarism scanning and AI-content detection
Strong, explicit privacy and no-training data policy
Advanced features like plagiarism checks require a paid plan
SciSpace
4.2$12/mo
vs Paperpal$13 less−0.2
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
Enago Read
4.2$12/mo
vs Paperpal$13 less−0.2
A literature-review assistant backed by a full academic-services company.
- Copilot for real-time research question answering
- Automatic paper summaries and key-insight extraction
- Discovery across 200+ million papers
Backed by an established academic-services company with an 18-plus-year history
Core research features overlap closely with several standalone competitors
Humata
4.3$1/mo
vs Paperpal$24 less−0.1
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
PaperBrain
3.6Free
vs Paperpal−0.8
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
Zendy
4.1Free
vs Paperpal−0.3
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
ResearchRabbit
4.6Free
vs Paperpal+0.2
A free, continuously updating visual map of papers as your collection grows.
- Continuously updating recommendations based on a growing paper collection
- Visual network of authors and citation connections
- Completely free with no paid tier
Completely free with no paid tier at all
No paid tier means no path to additional enterprise features
ScholarAI
4.2$12/mo
vs Paperpal$13 less−0.2
Grew out of one of the first academic-search plugins for ChatGPT.
- Originated as one of the first ChatGPT plugins for academic search
- Scholarly citation retrieval inside conversational AI workflows
- Free tier for standard use
Conversational integration suits researchers already working inside AI chat tools
More searches and features require a paid plan
FAQ
Questions people ask
Is Paperpal free?
Paperpal has a free plan, and paid plans start from $25/mo.
What is the best free alternative to Paperpal?
ResearchRabbit is the highest-rated alternative here with a free plan (4.6 out of 5). Other free options: Trinka, Humata, SciSpace.
What is the cheapest alternative to Paperpal?
Among paid plans, Humata has the lowest starting price (from $1/mo). If you need it free, start with ResearchRabbit.
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.