Comparison

Root cause analysis software compared (2026)

Root cause analysis software turns a defect or complaint into a traced chain from symptom to verified cause and action. Which tool fits depends on where the problem sits: in quality, safety, maintenance or IT. This page compares seven options for quality problems in manufacturing.

Last checked: 23 October 2026. Written by Galileon, the company that makes SolveR. Every fact about another product comes from that vendor's own website, linked under the table. We check every cell again each quarter.

The comparison

8D report software compared (2026)

The comparison

The comparison
	EasyRCA	Fabrico	MasterControl	Octave Reliance (formerly ETQ Reliance)	Sologic Causelink	SolveROur product	TapRooT
Vendor and country	Reliability Center, Inc., USA	Fabrico SaaS LTD; country not stated, R&D team in Bulgaria	MasterControl Solutions, Inc., USA	Octave Intelligence plc, Ireland; ETQ is part of Octave	Sologic, LLC, USA	Galileon, Slovenia	System Improvements, Inc., USA
What it is	RCA software for reliability, operations, quality and safety teams	MES and OEE software with built-⁠in CMMS; in the vendor's words not a dedicated RCA application	Quality management suite (eQMS) with CAPA in quality event management	Configurable cloud QMS: documents, CAPA, audits, training, suppliers, EHS	Cloud-⁠based root cause analysis software	AI 8D and root cause analysis software for manufacturing	RCA process, software and training for incidents, human error and equipment failure
Made for	Reliability, operations, maintenance, EHS and quality	Operators, maintenance, plant managers and continuous improvement	Life sciences: pharma, medical devices, biologics, food	Quality, EHS, life sciences and manufacturing	Quality, safety, reliability and IT	Quality, production and R&D engineers in manufacturing	Safety, process safety, quality, environment and equipment reliability
Methods	PROACT logic tree, 5 Why, fishbone, 300+ templates; 8D not stated	Loss Pareto, Kaizen, PDCA; vendor blog: no formal cause tree, does not run the 8D	Electronic 8D process; 5 Why and Ishikawa not stated	5 Why, fishbone, Pareto; 8D not stated	5 Whys+, fishbone, timeline, cause and effect diagram; FMEA in Enterprise; 8D not stated	8D (D0 to D8), 4-⁠Step, PDCA, A3, Just-Do-It, your own method; 5 Why, Ishikawa, Is / Is-⁠Not	SnapCharT, Root Cause Tree, Corrective Action Helper, Equifactor; 8D not stated
AI	Easy Assistant (beta released June 2026, Auto Mode October 2026) reads reports, maintenance logs, spreadsheets and photos, suggests tree nodes and corrective actions and reviews the RCA	Cameras suggest stop causes; an AI assistant answers from manuals and repair history	AI summaries of CAPAs and deviations (April 2026); no third-⁠party LLMs, not trained on customer data; AI for root causes not stated	Smart recommendations for root cause analysis; not described further	Suggests causes and solutions and drafts summary reports; the vendor states the AI does not learn from your input	Reads the complaint, reports and data, structures the problem and suggests causes and actions from the plant's closed cases	None stated; the vendor's page on AI (August 2025) promotes Actual Intelligence instead
Reuse of solved cases	Search across all RCAs; similar past RCAs shown while a new one is created	AI assistant shows what solved a stop before; repair history per machine	Linked events and search; suggestions from past CAPAs not stated	Not stated	Search across completed investigations; compare similar events	Every closed case feeds a knowledge base used on the next similar case	Trends across investigations
Evidence and audit trail	Document, photo and video uploads on the RCA and single nodes; review status; revision history; audit log not stated	Video clip for every stop; audit log	Time-⁠stamped audit trail, e-signatures (21 CFR Part 11, EU Annex 11)	Audit trail, e-signatures (21 CFR Part 11, EU Annex 11)	Evidence files; audit log in Enterprise; closed investigations can be locked	Every step linked, dated and sourced	Images and documents stored with the investigation; audit log not stated
Hosting stated	AWS and Heroku; processing in the USA; AI through OpenAI (USA)	AWS in the EU (security page); Germany or USA (pricing page)	AWS; processing location global	AWS; region not stated	AWS; region not stated; privacy policy: data may be stored worldwide	AWS, EU (Ireland); data never used to train models	Microsoft Azure; region not stated
Deployment	Cloud (SaaS)	Cloud, web and mobile	Cloud (SaaS)	Cloud (SaaS)	Cloud (SaaS); the overview page description also names on-⁠premise	Cloud; on-⁠premise option in Enterprise	Cloud, hosted or on-⁠premise
Public price / free trial	Yes, USD 14,975 per plant per year, unlimited users (FAQ: from USD 9,995) / free 7-⁠day pilot after a call	No, quoted per plant / not stated	No / not stated	No / not stated	Yes, Individual USD 799 per year (1 user), Team USD 6,250 per year, Enterprise on request / yes, 14 days (Team 30)	No, on request / no, paid pilot	Personal licence $2,495 per 12 months for TapRooT-⁠trained users; company licences on request / yes, free trial
Interface languages	9 incl. German; no Slovenian or Croatian	Not stated	Not stated	Not listed	9 incl. German; no Slovenian or Croatian	Slovenian, English, Croatian, German (more on request)	English; Spanish, French and Portuguese for two modules (page from 2018)
Sources	E1 to E8	F1 to F10	M1 to M10	O1 to O4	C1 to C11	S1	T1 to T9

All facts read on 23 October 2026 from each vendor's own website. Links and page dates under "Sources" at the bottom of this page.

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How we compared

We looked at the products that AI assistants and search engines name most often when a quality engineer asks for root cause analysis software for manufacturing: two dedicated RCA tools, an incident investigation system, two quality management suites with CAPA and a production and maintenance platform. IT incident tools and general whiteboards are left out, because they answer a different question. For each product we read the vendor's own pages and noted what they state about methods, AI, reuse of solved cases, audit trail, hosting, public prices and interface languages. "Not stated" means the vendor's pages do not mention it; the feature may still exist. Columns are in alphabetical order.

Which tool fits which team

EasyRCA: An asset-⁠heavy plant where reliability and maintenance teams run PROACT logic-⁠tree RCAs and want unlimited users per plant at a published price.
Fabrico: A plant whose main need is automatic downtime capture, OEE and maintenance work orders, with stop causes backed by video rather than a written investigation.
MasterControl: A life sciences manufacturer that needs a validated cloud quality system with Part 11 and Annex 11 controls, in which CAPA and 8D are one part.
Octave Reliance: An enterprise that wants one configurable cloud QMS for many sites, with CAPA, audits, documents, training, suppliers and EHS together.
Sologic Causelink: Teams that investigate many kinds of events, including IT, safety and quality, or one investigator who wants a low-⁠cost single-⁠user licence.
SolveR by Galileon: Quality, production and R&D engineers in manufacturing who solve customer complaints with 8D and other methods, want AI help on each step and want every closed case reused on the next similar one, with data hosted in the EU.
TapRooT: Investigations of safety, process safety or environmental incidents where human performance matters, run by TapRooT-⁠trained investigators.

Three questions to ask any root cause analysis software vendor

Is it made for quality problems in production, or for IT incidents and maintenance stops?
Does the AI guide the analysis, or does it only fill in fields?
Does it bring back what solved cases taught, inside the next investigation?

Frequently asked questions

What is root cause analysis software?

Software that takes a problem from the first symptom to a verified cause and an action, with the evidence on record. Most tools offer methods such as 5 Why, Ishikawa or a cause tree, assign actions to owners and keep an audit trail.

Is a 5 Why or Ishikawa template enough?

For a few cases a year it often is. A template does not check the logic of the analysis, and finding a similar old case means searching through files. When problems repeat or several engineers investigate, guided steps and a searchable history save that time.

How is root cause analysis for manufacturing quality different from IT root cause tools?

IT tools look for the cause of a software outage in logs and metrics. Quality root cause analysis in production starts from a defect or a customer complaint, works with parts, processes and people, and ends in corrective actions and a report the customer or auditor accepts, often an 8D.

Which root cause analysis tools use AI?

In this comparison, EasyRCA (beta) reads reports, maintenance logs and photos and suggests tree nodes and corrective actions, Sologic Causelink suggests causes and solutions and drafts summary reports, Octave Reliance names smart recommendations for root cause analysis, Fabrico suggests stop causes from camera footage, MasterControl summarises CAPAs and deviations, and SolveR suggests causes and actions from the plant's own closed cases. TapRooT's page on AI from August 2025 names no AI in the software.

Where is my data stored?

Check this before any trial. SolveR states AWS in the EU (Ireland). Fabrico states AWS in the EU on its security page and Germany or the USA on its pricing page. EasyRCA processes data in the USA and uses OpenAI for its AI. MasterControl states a global processing location, and Sologic Causelink says data may be stored worldwide. Octave Reliance (AWS) and TapRooT (Microsoft Azure) do not name a region on their pages.

Bring one open case to a 30-⁠minute call. We put it into SolveR in front of you, and you decide if a pilot makes sense.

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Sources

Every source was read on 23 October 2026. The date is the date shown on the page.