01PeerReviewAI
$49 per manuscript
16-section review of the manuscript you are submitting. Every reference checked against PubMed and Crossref; status per reference; retraction screening on every DOI. Journal formatting applied to your .docx as Word tracked changes, included. Zero Data Retention (Anthropic); never stored or used for training.
02Reviewer3
$11 one-time or $19/month
Flags fatal flaws, hallucinated references, unsupported claims, and inconsistencies, then returns one brief report ordered by what matters most. One-Time Review $11; Researcher plan $19/month with unlimited full reviews; Teams: contact sales; a free one-time review for inviting a friend. Best for the cheapest fast check, and unlimited re-checks of drafts on a monthly plan.
03Review-it
$6.99 per document
"the trusted ai peer reviewer workspace for researchers, students, and editors to run comprehensive peer reviews and pre-submission checks" (sic), with section-by-section scores and a journal matchmaker. Quick Review $6.99 per document; Trio Review $13.99 per 3; Unlimited Review $59 per month; Paper Fix $13.99 per document; Trio Fix $24.99 per 3; Unlimited Fix $99 per month; the FAQ states there is no free trial. Best for a cheap per-document score with a journal-fit suggestion, or unlimited reviews on a monthly plan.
04ManuscriptMind
$1 per review credit
Examines methodology, statistics, and research design, classifies issues by severity, and verifies citations. 5 free credits; 5 credits $5; 15 credits $12; 40 credits $28 (one credit per full review). Best for very cheap, very fast severity-graded feedback with a hallucinated-citation flag.
05SciScore
10 free reports/year (ORCID); 4 more for $19
Analyzes methods sections for rigor and transparency: whether antibodies, cell lines, plasmids, organisms and software are described with vendor names, catalog numbers and RRIDs. Scientist Author: 10 credits per year free for ORCID users; additional reports 4 for $19. Journal editors: 25 credits $99; 100 credits $399. Best for bench scientists who need a resource-identification and methods-rigor score before submission.
06Enago AI Peer Review Lite
$99
A hybrid review: Enago's proprietary AI generates a report based on standard structured peer review questions, then subject-matter experts validate findings and add commentary. $99 (shown as reduced from $149), 4-day delivery. Best for authors who want a human expert to sign off on an AI-generated report.
07Stanford Agentic Reviewer
Free
A free research tool that reviews PDFs (first 15 pages) with an optional target venue such as ICLR, NeurIPS, ICML or CVPR. "free!"; PDFs up to 10 MB; first 15 pages analyzed. Best for machine-learning papers headed to a conference, at no cost.
08Refine (refine.ink)
$49.99 per review
Analyzes academic papers for errors in statistical methods, mathematical reasoning and internal consistency, as a pre-submission quality check. 1 Full Review $49.99; 3 for $119.99; 10 for $299.99; first document free; institutional subscriptions separate. Best for papers whose risk is in the mathematics or the statistical derivation itself.
09thesify
€14.95 per review
Evaluates thesis strength, evidence, clarity, and alignment with assignment goals for papers and theses up to 100 pages. Reviewer: €14.95 single; €39.95 for 3; €99.95 for 10. Coauthor writing workspace €7.50/month billed yearly or €14.95/month. Best for students and thesis writers who want argument-level feedback at the lowest price per review.
10q.e.d Science
Free for researchers
Breaks papers into core claims, surfaces gaps in logic, methodology and internal consistency, and separates novel contributions from established knowledge. "free for researchers", no credit card; enterprise: contact sales. Best for a free logic-and-claims stress test before you spend money on anything else.
11Junia AI Peer Review Generator
Free
Generates "a journal-style peer review with clear sections: summary, strengths, concerns, and prioritized major and minor revisions" from pasted text. "You can generate a complete peer review for free"; some advanced modes are marked premium. Best for drafting review-style prose from pasted text at no cost; it is a text generator, not a manuscript checker.
12Taskade AI Peer Review Generator
Free
"Paste a manuscript, an essay, or a classmate's draft and get back a peer review you can actually send". "included on the Taskade free plan — no credit card, no watermark, no per-document charge"; 6,000 AI credits to start; paid plans from $10/month billed annually. Best for students and teams drafting feedback documents; a generic generator rather than a manuscript verification tool.
13Paperpal
$25/month or $144/year (Prime)
An AI academic writing assistant whose pre-submission checks cover language and grammar, reference quality, structure and word count, figures and tables, and key metadata and disclosures. Prime $25/month or $144/year; Pro $59/month or $348/year (Paperpal help center). Best for day-to-day academic writing help on a subscription, with a readiness check before you submit.
14Jenni AI
Free (3 reviews) · $12/month · $29/month
An AI academic writer whose Peer Review feature "scores your draft against standard peer-review criteria and leaves actionable comments directly in your document". Free $0 with 3 reviews; Plus $12/month with 10 reviews a month; Pro $29/month with unlimited reviews (USD, pricing page). Best for authors already writing in Jenni who want reviewer-style scores inside the editor.
15Liner
60 credits per review on Liner plans
A research AI whose Peer Review agent "organizes the most critical feedback into actionable suggestions" across novelty, rigor, clarity, impact and limitation. Peer Review agent: 60 credits per request. Plans: Free $0; Pro $17.99/month ($14.99 billed annually); Max $35.99/month ($29.99 annually); Team $26.99 per seat; Enterprise custom. Best for researchers already on a Liner plan who want a criteria-based critique; the page claims "Useful comments about 70% aligned with official ICLR 2024 peer reviews", Liner's own figure.