Bottom line
Refine.ink is the specialist for econ theory and formal proofs. Fukurō is the generalist for experimental and empirical work across disciplines, with figure evaluation, rebuttal analysis, and version comparison on Complete. Theory authors may use both: Refine.ink for logic depth, Fukurō for the full reviewer read.
Feature comparison
| Feature | Fukurō | Refine.ink |
|---|---|---|
| Subscription plans | ✓ | ✓ |
| Full manuscript review | ✓ | ✓ |
| Rebuttal analysis | Complete | — |
| Version comparison | Complete | — |
| Citation verification | ~ | — |
| Figure analysis | Complete | — |
| Journal-fit scoring | — | — |
✓ included · ~ partial · Complete = Complete plan only · — not offered
Comparison methodology: Features were evaluated using publicly available product information at the time of review. “Partial” indicates that the capability is limited, indirect, or available only in part of the workflow. Last reviewed: July 2026. Product information may change.
Refine.ink: strengths
- Exceptional depth on proof logic and internal argument structure
- Credits roll over with no expiration
- Strong for theory-heavy papers where standard AI review is shallow
Refine.ink: gaps
- Reviews are purchased one at a time rather than through an ongoing allowance
- Specialises in logic and proof structure; they state they cover natural and social sciences, engineering, mathematics and statistics
- States it does not handle citation formatting, bibliography management, or fact-checking
- No rebuttal or manuscript version comparison
Key limitation: Reviews take 20–40 minutes. No rebuttal or version comparison workflow.
Frequently Asked
When is Refine.ink the right choice?
For theory-heavy manuscripts where proof logic is the bottleneck, Refine.ink's niche focus is hard to beat. For most empirical papers, Fukurō's Standard plan covers more reviewer dimensions, and shorter manuscripts use fewer credits.
Can I use both tools?
Yes. Many theory authors run Refine.ink for proof-level critique and Fukurō for structure, methodology, clarity, and citation checks across every review dimension.
A second read, before you send
Reviewer-style feedback on what to strengthen, grounded in the criteria journal reviewers actually apply.