Cited in Springer Nature Systematic Reviews (2026)

Gaptrium™ does for you what no AI is capable of doing:
it's deterministic and auditable.

Find the gap the literature is ignoring — with evidence any peer reviewer can reproduce.

You have documents. Gaptrium™ finds what's missing. Analyse hundreds of files in seconds — entirely in your browser. Zero upload.

Try free → See plans
✔ Zero upload✔ No signup for trial✔ No data retention — by architecture
◉ Your documents never leave your device — by architecture, not policy
Why deterministic beats AI for research →
Every document × every term. Run analysis on hundreds of PDFs in seconds. ▶ autoplay · no sound
Who are you?
🔬
Scope · from £9.99/mo
Researcher
PhD candidate · Master's student · Professor · Independent researcher — mapping literature gaps, systematic reviews, thesis methodology
→
🎓
Education · £4,990/yr per institution
University
One flat price for your entire institution — every student, every staff member, every researcher on your domain
→
🏭
Signal · £3,490/yr · up to 25 users
Enterprise
Pharma · Chemical · Legal · Technology · PR — competitive intelligence, patent gap detection, document corpus analysis at scale
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🏛️
Core · from £14,990/yr
Government
Any agency — intelligence, audit, science, regulation, defence R&D — sovereign analysis that cannot be compromised by architecture
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🎓
Academic Partnership Programme
One university per country — free Education access, perpetually.
No contract · No fees · No renewal
Claim your country →
See it before you decide
🖥
Platform Overview
See the platform in action
Screenshots, all analysis lenses, and how each feature works — before you commit.
See Overview →
⚡
Patent Explorer
Cross-reference your corpus against 8 patent databases
Find what is heavily researched but not yet patented — the pre-competitive intelligence window.
See Patent Explorer →
🔬
Scientific Method
Peer-reviewed methodology behind every result
IEEE, London Metropolitan University. Cited in Springer Nature.
Read the Method →
🗂
All Features
Every analytical lens, one by one
Heat Map, Gap Analysis, Bridge Map, PICO Analysis, Evidence Gap Map, Timeline, Pulse, Search with MeSH/DeCS & PRISMA 2020, Patents, Authors.
Explore Features →
Explore all plans without selecting →
∞Documents — Core plan
100%Local processing
0Files ever uploaded
No limitFile size — bounded only
by your device
0Models trained on your data
CitedSpringer Nature 2026
Trusted for
Academic Research
Systematic Reviews · R&D · PhD
Legal & Compliance
Contract Audit · Regulatory · Discovery
Intelligence & PR
Media Monitoring · Due Diligence · Gov
Published methodology
ECKM · Coventry UK · 2021
The architectural limit problem

AI tools hit a wall. Gaptrium™ doesn't.

Every AI platform has hard limits — 5–20 files per session, 10–25 MB per file. Not a pricing tier. An architectural constraint that cannot be removed regardless of plan.

See the comparison → Full analysis →
Zero retention · No data transfer · Safe for regulated industries

Your clients' data stays
exactly where it should.

Most research tools process your documents on their servers. Gaptrium™ does not — and cannot. The architecture makes it structurally impossible for your files to reach us.

We hold no certifications. We don't need to: we simply don't receive your documents. For consultancies handling pharmaceutical dossiers, HTA submissions, regulatory filings, and legally privileged material — an architecture that eliminates the problem is stronger than a policy that manages it.

✔
Compatible with classified and legally privileged material
Trade secrets, pharmaceutical trial data, undisclosed IP — none of it leaves your device.
✔
No DPA negotiation required
No personal data is processed by our servers. There is nothing to transfer, nothing to protect in transit.
✔
Auditable by design — reproducible results for regulatory submissions
Same corpus, same parameters, same result. Always. Citable, defensible under peer review and agency scrutiny.
✔
Hosted in Switzerland · Infomaniak SA
Account data — email and subscription status only — stored under Swiss data protection law. No document content, no analysis results.
What happens when you analyse a document
1
You open your files locally
PDF · DOCX · TXT — loaded in your browser's memory. Your operating system. Your device.
↓
2
Analysis runs in your browser's JavaScript engine
Heat Map, Gap Analysis, PICO, EGM — all computed locally. No API call. No server involved.
↓
3
Results stay on your device
Saved to browser localStorage or your own WebDAV storage. We receive only an anonymous analysis count — date, country, plan tier. No content.
The only data that reaches Lacuna Labs
✔ Your email address and subscription status
✔ A usage count: date + country + plan tier
✕ Your documents — never
✕ Your search terms — never
✕ Your analysis results — never
Privacy Policy → · DPA →
🔬
Systematic Literature Review & R&D
Identify what the literature systematically ignores before writing your thesis, grant application, or publishing. Find the gap no one is covering — with evidence any peer reviewer can reproduce.
🏛️
Media Monitoring & Narrative Intelligence
Track which topics are gaining traction across thousands of articles — and identify what mainstream coverage is systematically ignoring. Turn media silence into strategic intelligence, weeks before it becomes a headline.
💼
Competitive Due Diligence & Market Intelligence
Cross-reference competitor filings, earnings reports, and industry research. Find what rivals are deliberately not mentioning — the omissions in their annual reports that reveal emerging risks and unexploited niches.
🏭
Regulatory Compliance & Safety Audit
Audit hundreds of technical manuals, compliance reports, and safety filings to guarantee no norm was omitted. Every finding is mathematically traceable — defensible against any regulator, court, or inspector.
🔍
Legal Discovery & Contract Audit
Process thousands of pages of contracts, filings, or disclosed documents to surface inconsistencies, omissions, and concealed facts. Every finding traces back to the exact clause in the exact document.
🏛️
Government & Intelligence Analysis
Analyse classified documents, policy briefs, and intelligence reports entirely within the browser — no file ever leaves the device. Compliant with the most stringent data sovereignty requirements by architecture.
Reviews

One technology.
Every review methodology, covered.

Any domain that produces documents has gaps in those documents. Gaptrium™ finds them — deterministically, reproducibly, and without sending your data anywhere.

Review type Category Description Main fields Gaptrium™ features
Systematic review
Gold standard
 Quantitative Exhaustive search with explicit inclusion/exclusion criteria, critical appraisal and narrative or quantitative synthesis. Highest methodological rigour. Clinical medicine, pharmacy, public health, psychology, nursing Heat Map PRISMA 2020 MeSH/DeCS Evidence Gap Map Merge & Dedup PICO Analysis
Meta-analysis
Statistical pooling
 Quantitative Statistical technique that pools quantitative results from multiple studies. Usually embedded within a systematic review. Requires study homogeneity. Clinical medicine, epidemiology, HEOR, psychology, education Gap Analysis Co-occurrence Timeline PRISMA 2020 Corpus comparison
Scoping review
Arksey & O'Malley
 Scoping Maps the extent and nature of evidence without formal quality appraisal. Identifies gaps to inform future research. No synthesis of effect sizes. Public health, nursing, social sciences, health policy, education Evidence Gap Map Heat Map Gap Analysis Freq×Coverage Word Cloud
Integrative review
Whittemore & Knafl
 Mixed Synthesises empirical and theoretical literature simultaneously, including qualitative and quantitative studies. Suited to mature topics with diverse evidence. Nursing, education, social work, health services research Gap Analysis Consensus Polarity Heat Map Co-occurrence
Meta-synthesis
Meta-ethnography
 Qualitative Integrates qualitative studies through thematic analysis or meta-ethnography. Seeks new overarching concepts rather than effect size pooling. Nursing, social sciences, education, anthropology, mental health Polarity Consensus Gap Analysis Co-occurrence AI Advisor
Umbrella review
Review of reviews
 Quantitative Synthesises evidence from multiple existing systematic reviews on the same topic. Provides highest-level overview. Used to inform clinical guidelines. Clinical medicine, public health, pharmacology, HTA agencies Compare Corpus Bridge Map Gap Analysis Evidence Gap Map Merge & Dedup
Rapid review
Time-constrained
 Quantitative Streamlined systematic review with simplified steps to meet policy timelines. Trades methodological completeness for speed. Used by HTA and government agencies. Health policy, HTA, government agencies, emergency public health Merge & Dedup Heat Map Search Log PRISMA 2020 Gap Analysis
Mapping review
Evidence map
 Mapping Categorises and visualises the volume and distribution of evidence across a field. Identifies clusters and deserts of evidence without appraising quality. Environmental science, international development, education, public health Evidence Gap Map Geo Gaps Freq×Coverage Timeline Heat Map
Realist review
Pawson et al.
 Mixed Theory-driven synthesis asking "what works, for whom, in what circumstances?" Analyses causal mechanisms. Suited to complex interventions. Health services research, social policy, criminal justice, education Consensus Polarity PICO Analysis Gap Analysis Co-occurrence
Living systematic review
Continuously updated
 Quantitative A systematic review updated in near real-time as new evidence emerges. Requires continuous search, appraisal and synthesis. Prominent during COVID-19. Clinical medicine, infectious disease, drug regulation, public health emergencies Pulse Research Trend Discovery Timeline EGM Monitor Merge & Dedup
Meta-narrative review
Greenhalgh et al.
 Mixed Traces how different research traditions studied the same phenomenon, explaining conflicting findings. Maps paradigms, not just studies. Health services research, management science, information systems, sociology Co-occurrence Timeline Consensus Compare Corpus Bridge Map
Critical review
Analytical
 Qualitative Goes beyond description to analyse and evaluate the conceptual contribution of the literature. Resolves existing contradictions and identifies conceptual innovation. Management, education, philosophy, social theory, political science Gap Analysis Consensus Polarity AI Advisor Co-occurrence
State-of-the-art review
Frontier mapping
 Scoping Addresses the most current developments in a field. Focuses on recent literature to identify emerging topics and research frontiers. Computer science, engineering, biomedicine, AI/ML research Trend Discovery Pulse Research Timeline Patent Explorer Co-occurrence (Emerging)
Feature — primary fit Feature — secondary fit
Plans & pricing · all prices in GBP

One platform. Five ways to access it.

Document and term limits depend on your plan. Zero capture applies on every plan — no document ever reaches our servers.

Trial
£0
No time limit
No credit card · No signup required
Click Try free in the menu
Limits
20 documents · 50 terms
Compare 2 corpora
Analysis
Heat Map
Gap Analysis
Bridge Map
Freq×Coverage · Bubbles
Word Cloud · Groups
Export
CSV
Support
FAQ + Community
Gaptrium™ Scope
£9.99
per user / month
Details →
Limits
100 documents · 200 terms
Compare 3 corpora
Core Analysis
Heat Map
Gap Analysis
Bridge Map
Freq×Coverage · Bubbles
Word Cloud · Groups
Advanced Analysis
Timeline · PICO Analysis
Evidence Gap Map
Co-occurrence
Geo Gaps · Polarity
Domain Stopwords
AI Advisor
Intelligence
Pulse Editorial
Pulse Research
Export
CSV · HTML · PNG
Support
FAQ + Community
★ Most popular
Gaptrium™ Signal
£3,490/yr
per org / month · 25 users
Details →
Limits
500 documents · 500 terms
Compare 5 corpora · no file size limit
Core Analysis
Heat Map
Gap Analysis
Bridge Map
Freq×Coverage · Bubbles
Word Cloud · Groups
Advanced Analysis
Timeline · PICO Analysis
Evidence Gap Map
Co-occurrence
Geo Gaps · Polarity
Domain Stopwords
AI Advisor
Intelligence
Trend Discovery
Pulse Editorial · Pulse Research
Pulse Patents · News Intelligence
Author Intelligence
Patent Explorer (8 databases)
Export
CSV · HTML · PNG · PDF
Team
Group management · invites · slots
Support
Email · admin only · 2 days
Gaptrium™ Education
£4,990/yr
per institution / month
Every student · every staff member · anyone with an institutional email address — unlimited users, one flat price.
Details →
Limits
300 docs / user · 200 terms
Compare 3 corpora
Core Analysis
Heat Map
Gap Analysis
Bridge Map
Freq×Coverage · Bubbles
Word Cloud · Groups
Advanced Analysis
Timeline · PICO Analysis
Evidence Gap Map
Co-occurrence
Geo Gaps · Polarity
Domain Stopwords
AI Advisor
Intelligence
Pulse Editorial · Pulse Research
Export
CSV · HTML · PNG · PDF
Access
Auto-access via institutional email
No user management required
Support
Email · admin only · 2 days
Gaptrium™ Core
from £14,990/yr
per month · contact us
Details →
Limits
Unlimited documents · terms
Compare 10 corpora · no file size limit
Everything in Signal, plus
JSON export
Zero-server credential architecture
SSO — Google Workspace
SSO — AD · SAML em breve
On-premise acordo específico
Support
Priority email · admin · 1 day
Zero capture on every plan — by architecture, not policy
Your documents never reach our servers. Structurally compatible with GDPR, UK GDPR, and LGPD obligations — because no document data is processed or transferred by us.
How it works →
The platform · See it in action

Nine analytical lenses.
One deterministic engine.

Every tool runs on the same engine — same corpus, same parameters, same result. Always.

Coverage Engineering

What is there

Gaptrium™ analyses massive volumes of files and cross-references the information to find the pattern of coverage. It shows how themes, data, and arguments interconnect systematically — revealing hidden connections that would escape human reading.

Gap Intelligence

What isn't there

Gaptrium™ isolates what the documentation omitted. The software scans the data corpus and pinpoints blind spots, intentional silences in reports, and information voids that require investigation.

Heat Map — corpus analysis
Heat Map
Every document × every term. Central vs peripheral presence at a glance.
Gap Analysis — gap detection
Gap Analysis
Terms ranked by coverage. The least covered are your gaps — and your opportunities.
Bridge Map — concept connections
Bridge Map
Concepts that connect across documents — and the missing links between them.
Timeline — term evolution
Timeline
How terms peaked, declined or emerged across the years in your literature.
Clusters — document network
Clusters
Documents grouped by thematic similarity. Outliers flag the most novel angles.
Pulse Editorial — news momentum
Pulse Editorial
Is the press covering your topic? Media momentum week by week — 65 global feeds.
Patent Explorer — IP gap analysis
Patent Explorer
Which concepts are researched but unprotected? Cross-reference papers against 8 patent databases — automatically.
See all 9 lenses →
Why Gaptrium™

Not a competitor to AI.
A solution to a problem AI cannot solve.

AI is an extraordinary tool for many tasks. But when the problem requires deterministic results, reproducible findings, and zero data exposure — AI is structurally incapable of delivering. Not because of limitations that can be fixed with a better model or a higher-tier plan. Because probabilistic inference and deterministic analysis are fundamentally different things.

Gaptrium™ fills the gap AI leaves behind — the problems that require a finding to be reproducible by any reviewer, traceable to the source, and produced without your documents ever leaving your device.

See it in action · real sessions, no narration
Analysis — Heat Map · Gap Analysis · Bridge Map ▶ autoplay · no sound · loop
Every document × every term. Run analysis on hundreds of PDFs in seconds — entirely in your browser. Try it free →
01
Drop your files
Import hundreds of PDFs, reports, BibTeX, or RSS feeds. No size limit. No upload. The files never leave your device.
02
Local processing
The Gaptrium™ engine runs entirely inside your browser. Your confidential data never touches our infrastructure — by architecture, not policy.
03
Explore patterns & gaps
Export mathematical reports ready to support high-stakes decisions. Every finding is reproducible by any reviewer with the same documents.

Why AI cannot solve this problem —
regardless of model, plan, or provider.

These are not weaknesses that will be fixed in the next version. They are properties of how probabilistic models work — and why a different class of tool is needed for deterministic analysis. Bibliometric tools (citation and network analysis software) are a third category worth knowing about — useful, but built for a different job.

Capability ✗ Generative AI Bibliometric tools ✔ Gaptrium™
Document volume & file size ✗ 5–20 files per session · 10–25 MB per file · loses context across documents · architectural constraint — cannot be fixed regardless of plan Not applicable — no file processing; works from citation databases ✔ No file size limit · Trial: 20 docs · Scope: 100 · Signal: 500 · Core: unlimited · bounded only by your device's processing power
Hallucinations & reliability ✗ Invents facts, citations, clauses, and statistics that do not exist in the source documents. No way to detect or prevent — it is a property of probabilistic models Not applicable — citation data only, no content generation ✔ Zero hallucination — every output is a direct count from a specific document. Nothing is inferred, generated, or invented
Reproducibility ✗ Probabilistic output changes on every run. Same question, different answer. No reviewer can reproduce or verify the finding High — but dataset-dependent and bound by database coverage ✔ Byte-identical results every time. Same corpus + same parameters = same result — tomorrow, next year, or in peer review. Peer-reviewed methodology
Gap detection ✗ Can summarise what is present but cannot map what is missing or systematically omitted Partial / indirect — only visible as citation gaps, not content gaps ✔ Specialised in auditing and isolating what was not written — the absence is the finding
Data privacy & compliance ✗ Documents uploaded to cloud servers. Data retained for model training. Compliance requires contractual guarantees that vary by provider and jurisdiction Depends on hosting model — local, cloud, or hybrid by tool ✔ Zero upload — documents never leave your device. No document data is processed or transferred by Lacuna Labs. Structurally compatible with GDPR, UK GDPR, LGPD, and Swiss nFADP obligations. Safe for classified, legally privileged, and trade secret material.
Pattern mapping ✗ Loses global context in long readings. Cannot process the full corpus as a unified structure Network and co-citation patterns only — not content patterns ✔ Processes hundreds of files simultaneously as a single integrated corpus — full context, no memory loss
Auditability ✗ Black box — opaque scoring, no traceability. Unusable for court submissions, regulatory filings, or audit sign-off Partial — traces to citation record, not document content ✔ Every score traces back to a specific count in a specific document. Defensible in court, regulatory review, and peer-reviewed publication
Peer-reviewed methodology ✗ Proprietary, undisclosed, or general-purpose — not built for systematic review Varies by tool ✔ ECKM 2021 · IEEE 2023 · Cited in Springer Nature 2026

AI and bibliometric tool figures based on publicly documented category characteristics as of 2026. Gaptrium™ is not positioned as a replacement for AI — it addresses a class of analytical problems that probabilistic models are structurally unable to solve. Lacuna Labs does not name or endorse any specific competitor.

Positioning

A different category
of research infrastructure.

Unlike generative AI systems optimised for language generation and conversational assistance, Gaptrium™ is designed for structured scientific evidence processing, reproducible analytical pipelines, reduction of interpretative ambiguity in literature reviews, and deterministic workflow execution.

This positions Gaptrium™ within the category of deterministic research infrastructure for evidence-based science — adjacent to, but functionally distinct from, both generative AI assistants and traditional bibliometric tools.

⚠ Methodological notice

References to academic literature relate to the scientific methodologies underlying the system and/or publications where related approaches are discussed in peer-reviewed research. This does not imply endorsement, certification, or validation by any academic publisher, journal, or institution.

Peer-reviewed methodology

Not proprietary opinion.
Peer-reviewed science.

Gaptrium™ is inspired by the MTTR methodology — published by the Intelligent Systems Research Centre, London Metropolitan University — and peer-reviewed and published in three institutional contexts: ITNG / Springer (2020), IEEE Transactions on Services Computing, and ECKM · Coventry UK (2021). It is also cited, among hundreds of other tools, in Systematic Reviews (Springer Nature, 2026). Gaptrium™ shares no code, screen or implementation with MTTR.

See the full methodology, genealogy & institutional citations →
Springer Nature
Cited in Systematic Reviews · 2026
IEEE
Transactions on Services Computing
ITNG · Springer
Coventry University UK · 2020
[ Gaptrium™ v2 — Deterministic Gap Intelligence ]

Map what's covered.
Reveal what isn't.

Not an AI platform — a Deterministic Intelligence Platform. Same corpus, same parameters, same result. Always. Reproducible. Auditable. Zero retention.

For: Academic Research · Media Intelligence · PR & Narrative Analysis · Commercial Due Diligence · Government & Audit

✔ Deterministic· ✔ Reproducible· ✔ Auditable· ✔ Zero retention· ✔ Local control
Why deterministic?
●
Zero capture on every plan — including Trial

Documents are processed entirely in your browser on every plan. No file reaches our servers. Compatible with classified information, legally privileged material, and trade secrets.