purplelink
Purplelink LLC · Marketing
Purplelink is a small software studio whose AI manuscript review tool puts your paper in front of four AI reviewers and checks every reference against CrossRef, from $9 per run.
About purplelink
What Is Purplelink
Purplelink is a one-person software studio in Atlanta, Georgia, founded in 2026 by Benjamin Ampel, an assistant professor of computer and information systems at Georgia State University. The studio builds Mac apps, an iPhone app and free browser tools for academic writing.
The product most people come for is Paper Review, an AI peer review tool that works as a pre-submission paper review. You upload a manuscript PDF, and four AI reviewers read it the way a journal panel would: a Methodology Critic, a Statistical Skeptic, a Data Integrity Officer and an Editor-in-Chief. Each finding quotes the passage it questions, and a checklist tells you what to fix.
The studio bets on privacy as the selling point. Free tools process files in memory and never store them. Paid reviews delete your manuscript 30 minutes after you open the result, or after 24 hours if you never do. The catch is you're buying from one person, so there's no support team, no enterprise plan and no public API for building your own workflow on top.
Getting Started
- Open the Purplelink tools page and pick a check, such as Paper Review or the free reference check.
- Pay through Stripe, or skip payment entirely if you're running the free CrossRef reference scan.
- Upload your PDF, up to 20 MB. The upload link is emailed to you, so you can pay on a phone and upload from a laptop.
- Read the report, usually in 4 to 8 minutes, and pick a field profile if the general one doesn't fit your discipline.
Product Information
A quick look at purplelink's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Academic researchers
- PhD students and early-career authors
- Lab leads and department buyers
Tasks
- Pre-submission manuscript review
- Reference verification
- Double-blind preparation
- Response letter review
Scenarios
- A deadline is close and you want a second opinion before uploading
- You suspect a citation doesn't support the claim
- You're a lab checking several drafts
Key features
Four independent AI reviewers
Paper Review reads your manuscript through four roles: a Methodology Critic for design and confounds, a Statistical Skeptic for power and unsupported claims, a Data Integrity Officer for figures and tables, and an Editor-in-Chief for novelty and fit. Each one reads on its own, so you get four separate angles instead of a single summary. A Deep Review at $15 runs a second round where each reviewer sees the others' findings.
CrossRef reference verification
Every reference in your bibliography is checked against CrossRef, the metadata registry for scholarly publications. The tool reports how many entries verify and flags weak title matches that need a second look. In the sample report, 47 of 52 references verified, with three weak matches to re-check.
Field profiles
You can pick a profile tuned to machine learning, biomedicine, psychology and social science, or chemistry, instead of a general one. Economics, sociology and political science papers run through the social science profile. Matching the profile to your field changes what the reviewers treat as a real flaw.
Figure and citation integrity checks
The first layer renders every page and looks for figure manipulations, figure-versus-text contradictions and presentation problems like broken y-axes or missing error bars. The language stays hedged, flagging concerns to investigate rather than making accusations. A second layer audits whether cited abstracts actually support the claims.
Free browser tools
Purplelink runs more than twenty free tools for academic writing: LaTeX to PDF, BibTeX validation, citation generation and Markdown conversion among them. Files are processed in memory and never stored, and there's no account to make. You pay nothing to use them.
Free reference check and submission checklist
Before you pay anything, you can upload a PDF to see how many references CrossRef can confirm, with up to three findings quoted back. A free submission checklist walks through twelve checks worth doing and can email you a reminder a week before your deadline.
Pros and cons
Pros
- A full four-reviewer read costs $9, against several hundred dollars for a human pre-submission edit.
- Every finding quotes your own text, so you can find the passage without hunting.
- The CrossRef audit catches citations whose abstracts don't match the claim they're attached to.
- Manuscripts are deleted within a day, and Anthropic doesn't train on API inputs.
- Reviews are allowed under the author policies of Elsevier, Springer Nature, Wiley, IEEE, ACM and NeurIPS, according to the studio.
Cons
- The output is advisory only, so you decide what to change and carry the risk of a missed flaw.
- There's no account, no dashboard and no public API, which makes it awkward to track reviews across a team.
- Support comes from one person, so there's no service level to lean on when a deadline is tight.
- Field profiles cover a handful of disciplines, and an unusual field falls back to the general profile.
Frequently asked questions
A standard Paper Review is $9 and includes four AI reviewers, a CrossRef reference check and an anonymity scan. The Journal Pack version, which also checks your paper against one of 25 journals' submission rules, is $11, and a Deep Review with a second round is $15.
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