Fihrist Lab is better when local data, page-level organic verification, complaint research, trademark screening, and one-time pricing lead the decision.
Cloud monitoring and recommendations versus local competitor intelligence
Fihrist Lab vs PublishRank
PublishRank is a subscription dashboard built around daily monitoring, alerts, and prioritized optimization; Fihrist Lab is a one-time browser extension for live research, verification, and local tracking.
Fihrist Lab is the intelligence layer Amazon KDP publishers have been missing—built to expose real demand, decode the competition, and reveal exactly where the next book can win.
Fihrist Lab suits publishers who want affordable hands-on analysis. PublishRank suits authors who want cloud monitoring, emailed alerts, a weekly digest, and guided listing recommendations.
Fihrist Lab$19.99One-time payment
PublishRank$19/month or $197/yearSubscription
Last verifiedAugust 5, 2026Official sources where available
Quick verdict
The useful answer is about fit.
PublishRank may be better when automated daily cloud monitoring, email alerts, listing audits, and a 90-day action plan are worth a subscription.
Fihrist Lab is an instrument the publisher operates; PublishRank is designed as an ongoing hosted monitoring and recommendation service.
Side-by-side
Verified feature comparison
“Not publicly confirmed” means the capability or policy was not clearly documented in the official sources reviewed.
| Factor | Fihrist Lab | PublishRank |
|---|---|---|
| Price | $19.99 | $19/month or $197/year |
| Payment model | One-time license | Subscription |
| Refund policy | See Fihrist Lab refund policy | 7-day money-back guarantee after paid signup |
| Niche research | Niche Ledger + Niche Analyzer | Keyword, category, competitiveness, and ASIN research |
| Search-demand estimation | Modeled monthly range | Keyword opportunity scoring and search-volume estimates |
| Competition analysis | Organic, sponsored, format, category, and market-shaping books | ASIN Analyzer, keyword gap, and competitiveness score |
| Organic keyword verification | Yes — page-one checks excluding sponsored placements | Likely-targeted and gap analysis; exact organic page-one verification not confirmed |
| Amazon autocomplete research | Yes — book-focused long-tail phrases | Keyword research; source method not publicly confirmed |
| Review-gap analysis | Yes — Opportunity Gap | Review threshold and review monitoring; complaint mining not confirmed |
| Category analysis | Yes — category mapping and rank positions | Category Finder and opportunity scoring |
| BSR tracking | Yes — with estimated sales, revenue, price, and category movement | Daily monitoring with alerts and weekly digest |
| Price and promotion detection | Yes — shopper-visible price and promotion awareness | Pricing info in ASIN analysis; promo detection not confirmed |
| Trademark-risk research | Yes — USPTO-based research aid; not legal advice | Not publicly confirmed |
| Local data storage | Yes — research is stored in extension storage | No — hosted account with preserved history |
| CSV export | Yes | Yes — advertised as unlimited |
| Supported marketplaces | Amazon US, UK, Germany, and France | Not publicly confirmed |
| Browser integration | Chrome extension used while browsing Amazon | Web app across phone, tablet, and desktop |
| Intended audience | KDP publishers researching niches, keywords, competitors, and tracked books | KDP authors wanting continuous monitoring and prioritized optimization |
Practical differences
What changes in a real publishing workflow?
Niche intelligence
PublishRank scores keywords, categories, competitors, and listing quality inside a hosted dashboard. Fihrist Lab starts with the live Amazon result page and preserves the evidence trail locally.
Keyword research
PublishRank offers search-volume and opportunity scoring plus keyword gaps. Fihrist Lab's distinct proof step checks page-one organic presence and deliberately removes sponsored placements from the result.
Competition analysis
PublishRank reverse-engineers ASINs and compares a book with leading competitors. Fihrist Lab focuses on which listings are truly meaningful in the niche and what their buyers say is missing.
Search-demand estimation
Both estimate demand from non-public Amazon data. Fihrist Lab uses a range to communicate uncertainty; PublishRank presents scoring and estimated volume within its optimization workflow.
Review and opportunity analysis
PublishRank monitors new reviews and predicts thresholds. Fihrist Lab analyzes low-star review text for recurring product weaknesses through Opportunity Gap.
Tracking and monitoring
PublishRank's daily cloud scans, instant email alerts, and weekly digest are a core strength. Fihrist Lab provides on-device history with a daily background refresh and in-extension notifications.
Pricing
PublishRank costs $197 per year on its annual plan; Fihrist Lab costs $19.99 once. The recurring cost funds cloud monitoring and proactive email delivery.
Workflow and ease of use
PublishRank tells the author what to fix through audits and plans. Fihrist Lab gives the publisher the raw and interpreted market evidence for making the decision directly.
Privacy and local data
Fihrist Lab's research results remain in browser storage. PublishRank stores monitoring and analysis data in its account service and preserves it for 30 days after cancellation.
Best use cases
PublishRank fits an already-published catalog needing alerts and optimization. Fihrist Lab fits idea validation, competitor diagnosis, organic checks, and local ongoing research.
Inside Fihrist Lab
A connected evidence system—not ten disconnected numbers.
Niche Ledger
X-rays a niche to identify meaningful competitors, sponsored listings, format distribution, categories, and market-shaping books.
Niche Analyzer
Models credible monthly Amazon search demand as a range, making uncertainty visible instead of presenting a misleading exact number.
Keyword Lab + Keyword Spy
Discovers book-focused long-tail phrases through Amazon autocomplete, then verifies organic page-one rankings while excluding sponsored placements.
Opportunity Gap
Finds meaningful recurring complaints in competing books and turns those weaknesses into practical opportunities for a better book.
Category Analyzer
Maps categories and ranking positions associated with books and niches, preserving the context needed to judge category fit.
The Tracker
Monitors chronological BSR, estimated sales, shopper-visible price, estimated revenue, and category movement over time.
Promo-Aware Pricing
Detects the price shoppers can currently see so temporary promotions do not silently distort estimates.
The Vault
Saves research locally for later comparison and CSV export without sending the research history to a Fihrist server.
Trademark™ Check
Screens title phrases with USPTO results and publishing-risk signals. It is a research aid only—not legal advice, legal clearance, or a substitute for an attorney.
Cost of access
Pricing without distorted savings math
One payment. No subscription.
- One year
- $19.99
- Three years
- $19.99
Subscription
- One year
- $197 annually
- Three years
- $591 annually for three years
All 12 tools are advertised in one plan with a 14-day trial and a 7-day money-back guarantee after paid signup.
Decision guide
Who should choose each tool?
Choose Fihrist Lab if…
- You want one-time pricing
- You prefer local data storage
- You need review complaint analysis or trademark screening
- You want to work inside Amazon
Choose PublishRank if…
- You want daily cloud monitoring and email alerts
- A prioritized listing audit is valuable
- You want a weekly portfolio digest
- You need a hosted dashboard on mobile and desktop
Questions publishers ask
Fihrist Lab vs PublishRank FAQ
01Is Fihrist Lab a good PublishRank alternative?
It can be, especially for publishers who want research inside Amazon, local research storage, and a $19.99 one-time license. PublishRank may still be the better fit when its specialist workflow matches the job more closely.
02Which tool is better for KDP niche research?
Fihrist Lab is built for live, listing-level niche inspection: it separates sponsored from organic evidence, models demand as a range, and connects competitors, categories, reviews, and tracking. PublishRank should be considered on the strength of its verified specialty described on this page.
03Does Fihrist Lab require a subscription?
No. Fihrist Lab costs $19.99 as a one-time payment for lifetime access to the current extension license, subject to its Terms of Service.
04Can Fihrist Lab estimate Amazon search demand?
Yes. Niche Analyzer produces a modeled monthly range from observable Amazon signals. It is an estimate from Fihrist Lab's model, not Amazon-reported search volume.
05Does Fihrist Lab verify organic keyword rankings?
Yes. Keyword Spy checks whether a competing book appears organically on page one for a phrase and excludes sponsored placements from that verification.
06Can Fihrist Lab and PublishRank be used together?
Yes. They do not need to be mutually exclusive. A publisher can use PublishRank for its strongest specialist workflow and Fihrist Lab for browser-based market inspection, review gaps, organic verification, and local tracking.
07Does PublishRank offer a free trial?
Its official site advertises a 14-day free trial with no credit card required.
Evidence before effort