Lab Quality Control Software: Types, Core Features, and How to Choose

Updated November 2, 2026 · Published by myLabCompliance.io

Short answer: lab quality control software records control results, applies statistical process control (SPC) such as Levey-Jennings charts, Westgard multirules, SD, CV, and Sigma metrics, flags runs that break the lab's rules, and documents what happened next. Products fall into four groups: standalone QC data management systems (often from control manufacturers, with peer comparison), QC inside a LIMS or LIS, cloud QC dashboards, and compliance management platforms such as myLabCompliance.io that tie QC to personnel, competency, proficiency testing (PT), equipment, and documents. Clinical CLIA labs, pharma and R&D labs, and industrial labs weigh these groups differently because their regulations differ.

Disclosure: myLabCompliance.io publishes this page and is one of the products discussed. Other vendors are described only from their own public pages, linked where they are named. This is not a ranking or an endorsement. Features change, so confirm details with each vendor. For a CLIA-focused purchase checklist, see our lab QC and compliance software buyer's guide.

Types of lab QC software
Clinical laboratory quality control software options by category
Which type fits clinical, pharma/R&D, and industrial labs
Core features, explained
Standalone QC vs. LIMS vs. compliance platform: decision table
What myLabCompliance.io does
FAQs
Sources

1. Types of lab quality control software

"QC software" covers several kinds of product. Sort candidates by the job they were built for before you compare feature lists.

Standalone QC data management systems

These products exist to analyze control data. They take daily QC results (typed in or sent from instruments, middleware, or the LIS), compute statistics, chart them, apply rules, and usually compare your results with other labs running the same control lot through an interlaboratory peer program. Control manufacturers often make them, and peer data is usually tied to the manufacturer's own controls. Their strength is analytical performance monitoring. Personnel, competency, PT, equipment, and document records normally live in other systems.

For a deeper look at this category, see standalone QC management software for clinical labs.

LIMS- or LIS-integrated QC modules

A laboratory information management system (LIMS) or clinical laboratory information system (LIS) may include QC as one module next to orders, samples, results, and instrument interfaces. The advantage is that QC data is already where the results are. The trade-off is that QC depth varies by product and configuration, and a LIMS is often a large implementation project.

For the trade-offs, see QC in a LIMS or LIS versus a dedicated QC and compliance system.

Cloud and real-time QC dashboards

Many QC tools are now browser-based: nothing to install on the bench, access from several devices and sites, real-time statistics, and audit trails of who reviewed what. "Cloud" describes how a product is delivered, not a separate category of function. Standalone QC systems, LIS QC modules, and compliance platforms can all be cloud products.

For cloud-specific questions, see cloud QC software for CLIA labs.

Compliance management platforms

A clinical lab's QC record is one part of a larger set of evidence. A surveyor who looks at a QC failure will also ask about the corrective action, the calibration and reagent lot involved, the competency of the person who ran the test, and the procedure version they followed. Compliance management platforms hold QC workflows (charts, rules, investigations) together with those other records. myLabCompliance.io is in this group. These platforms usually don't run interlaboratory peer programs, so labs that want peer data keep a manufacturer program alongside them.

2. Clinical laboratory quality control software options by category

Clinical laboratory quality control software automates analytical performance tracking, statistical rules such as Levey-Jennings and Westgard, peer group benchmarking, and support for audits and surveys. The products below are grouped by category. Each description uses only what the vendor states on its own pages.

Standalone QC and peer comparison

Bio-Rad Unity Real Time. Bio-Rad says it facilitates compliance under CLIA and ISO 15189, supports real-time bench and supervisor QC review, implements QC rules with the optional Westgard Advisor module, and includes audit trails, advanced charts and reports, Analytical Goal options, and optional QC data upload from an LIS, middleware, or instrument (Bio-Rad). The user guide describes participation in the Unity Interlaboratory Program for peer comparison (Unity Real Time 2 User Guide). According to Bio-Rad's help pages, Westgard Advisor recommends SPC rules and the number of controls per run from the lab's data, a selected TEa, and a consensus group (Unity help).
Thermo Scientific LabLink xL. Thermo Fisher describes LabLink xL as web-based QC software with peer-to-peer comparison and automated data entry. It says LabLink xL can be used with MAS QC products or other QC products, and that peer data for non-MAS products isn't available at this time. The page lists automated QC data transfer from instruments, LIS, or middleware; reports that can be digitally signed with LabLink xL Signature Verification; statistical tools including measurement of uncertainty and Six Sigma; and management of QC across multiple sites (Thermo Fisher LabLink xL). The MAS LabLink xL WEB catalog page calls it an online interlaboratory peer-comparison program with no monthly cutoff dates (LabLink xL WEB), and the COMMUNICATOR page describes automated upload from instruments, middleware, and LIS, including via Data Innovations Instrument Manager and Beckman REMISOL Advance (LabLink xL COMMUNICATOR).
Technopath IAMQC (Peer, Infinity, Transfer). Technopath describes IAMQC software as designed to complement its Multichem QC range, with three products: IAMQC Peer, IAMQC Infinity, and IAMQC Transfer, a connectivity product for lab instrumentation (Technopath IAMQC). IAMQC Peer is described as real-time, cloud-based peer comparison software, with reports that include Levey-Jennings, SDI/CVI, Youden plots, measurement of uncertainty, Sigma metrics, bias, and reagent lot-to-lot variation (IAMQC Peer). IAMQC Infinity is described as cloud-based (SaaS) QC data management with LIS, middleware, and instrument connectivity, Westgard and user-defined rules, Sigma-based rule and frequency suggestions, a QC scheduler, and audit trail support with review and sign-off (IAMQC Infinity).

Cloud QC dashboards

InterQC (Vitro Group). InterQC describes itself as a cloud real-time application for quality control and regulatory compliance management. Its page says it requires no installation, works across major operating systems, browsers, and devices, and is open software that can use controls from any manufacturer. It lists real-time statistics with internal and external comparisons, user-set ranges and rules, a customizable dashboard, reports, an audit trail of user actions, and recording of corrective and preventive actions (InterQC).

QC inside an LIS or LIMS

StratusDX QC Module. StratusDX describes a cloud LIS whose QC module needs no hardware. Its QC page lists flags, warnings, and Levey-Jennings and Westgard rules; a built-in QC audit trail that shows the lab director when each result was reviewed and by whom; Levey-Jennings and Westgard failure reports; corrective action reports; and QC lot control (StratusDX QC).
Labguru. Labguru describes a platform that combines an electronic lab notebook, LIMS, inventory management, and equipment management, and it lists pharma, biotech, and QC labs among its industries (Labguru). It is aimed at R&D and pharma workflows more than CLIA clinical QC.

Free and low-cost tools

MedLabQC via SmartLabTools. SmartLabTools offers a download of MedLabQC, which it calls a freeware QC program retrieved from its archives. Because it is an archived Windows executable, check support and validation before you rely on it (SmartLabTools MedLabQC). SmartLabTools also publishes interactive PDF templates, including mean/SD/CV and Sigma metric calculators (SmartLabTools).

Clinical compliance platforms

myLabCompliance.io. CLIA compliance management software whose QC workflows include Levey-Jennings charts, Westgard rule violation detection, QC scheduling, control lot and package insert management, investigations, corrective action, and IQCP. These sit alongside personnel, competency, documents, equipment, PT, and validation. It doesn't offer peer comparison. See section 6.

3. Which type fits clinical, pharma/R&D, and industrial labs

Clinical (CLIA) labs

US labs that test human specimens for diagnosis, prevention, or treatment fall under CLIA, 42 CFR Part 493 (eCFR; CMS CLIA). Control procedures are in 42 CFR 493.1256, corrective actions in 42 CFR 493.1282, and record retention in 42 CFR 493.1105. That section says QC and patient test records, along with records of analytic systems activities, must be kept for at least 2 years. Surveyors look at the whole quality system, so clinical labs usually do best with QC statistics plus a system that connects QC to personnel, competency, PT, equipment, and procedures. High-volume hospital and reference labs often run a manufacturer's peer program for statistics alongside a compliance platform. Physician office labs, urgent care groups, and technical consultants covering several sites often get the most from a compliance platform that already includes Levey-Jennings and Westgard review.

Pharma, biotech, and R&D labs

FDA-regulated QC labs care about electronic record and signature controls. 21 CFR Part 11 sets FDA's criteria for treating electronic records and signatures as trustworthy and equivalent to paper, and it applies to records kept under FDA records requirements (21 CFR 11.1). These labs often look at LIMS/ELN platforms or life-sciences quality systems with validated configurations, CAPA, and change control. Part 11 is an FDA rule. It isn't the CLIA records standard, although clinical labs may still choose software with comparable audit trails and e-signatures.

Industrial labs (petroleum, chemicals, materials)

Industrial and petroleum labs often apply SPC to analytical measurement systems under consensus standards such as ASTM D6299 (statistical quality assurance and control charting for petroleum and lubricant measurement systems), ISO/IEC 17025 for testing competence, or their own customer specifications. LIMS QC modules and general SPC tools are common here. Clinical peer programs and CLIA record structures usually aren't relevant.

4. Core features of lab quality control software, explained

Levey-Jennings charts

A Levey-Jennings (LJ) chart plots each control result in run order against the target mean, with horizontal lines at ±1, 2, and 3 standard deviations. Shifts (a sudden change in level) and trends (gradual drift) show up visually. Good software draws the chart straight from the QC log, separates levels and lots, uses the lab's own established mean and SD (not only the package insert range), and lets a reviewer comment on or exclude a point without deleting the underlying record. For a deeper walkthrough, see Levey-Jennings and Westgard software in myLabCompliance.io.

Westgard multirules

Westgard multirules combine several control rules to catch random and systematic error while keeping false rejections low. Common rules are 1_2s (warning), 1_3s (one result beyond 3 SD, usually random error), 2_2s (two consecutive results beyond the same 2 SD limit, systematic error), R_4s (range between two controls in a run above 4 SD, random error), 4_1s, and 10_x (consecutive results on one side of the mean, systematic error). The lab's QC plan should name which rules apply to each test. Software should apply them automatically, flag violations, and require a documented review before results are released.

Mean, SD, and CV

Mean and standard deviation set the chart limits. The coefficient of variation, CV% = (SD / mean) × 100, expresses imprecision relative to concentration so you can compare across levels and methods. Software should calculate these by analyte, level, lot, and instrument for any date range, and keep cumulative statistics separate when the lot changes.

Sigma metrics

The Sigma metric puts allowable error, bias, and imprecision into one number:

Sigma = (TEa% − |Bias%|) / CV%

TEa is the allowable total error for the analyte (from a regulatory, accreditor, or clinical goal source the lab chooses), Bias% usually comes from peer or reference comparison, and CV% is the lab's imprecision. Higher-Sigma methods can often use simpler QC rules and fewer controls. Lower-Sigma methods need more rules, more controls per run, or method improvement. Several standalone QC products state that they use Sigma metrics to suggest rules (see IAMQC Infinity and LabLink xL).

Peer comparison

Peer comparison benchmarks your mean and SD against other labs that run the same control lot on the same method or instrument, usually reported as an SDI (bias in SD units) and a CVI (imprecision ratio). It catches bias that internal QC can't see. CLIA doesn't require peer comparison, but it can help you prepare for PT. Peer programs are run by control manufacturers and generally depend on using their control material.

Lot-to-lot crossover

When a new control lot arrives, labs typically run it in parallel with the current lot to set a new mean and SD before it goes into use. New reagent lots are also checked against patient samples or controls. Software should track lot numbers, package inserts, expiration dates, the crossover data, and the switchover date, so that each result is always evaluated against the limits for its own lot. CLIA ties this to control procedures (42 CFR 493.1256) and test systems and reagents (42 CFR 493.1252).

Audit trails and e-signatures

An audit trail records who entered, changed, reviewed, or excluded a QC result, and when. E-signatures record reviews and approvals. In FDA-regulated settings, 21 CFR Part 11 defines the criteria for electronic records and signatures. In CLIA clinical labs, the records rules are in 42 CFR 493.1105 (retention) together with the analytic-systems requirements it references. Either way, look for tamper-evident logs, named users, role-based permissions, and reports you can hand to an inspector.

Instrument, middleware, and LIS connectivity

Manual QC entry is slow and invites transcription errors. Many standalone QC products and LIS QC modules state that they import QC data automatically from analyzers, middleware, or the LIS, and some name the middleware they support. Ask each vendor which of your instruments are supported today, whether the connection is real-time or batch, and who maintains the interface.

Corrective and preventive action (CAPA)

Rejecting a run is the start of the work, not the end. CLIA requires documented corrective action when QC or other problems occur (42 CFR 493.1282). That includes investigating the cause, fixing it, and checking whether patient results were affected. Good software links every QC failure to an investigation, root cause, action, patient-impact review, and sign-off, and lets you report on repeat failures.

IQCP

An Individualized Quality Control Plan (IQCP) lets eligible nonwaived tests use a QC frequency based on risk rather than the default CLIA frequency. An IQCP has three parts: a risk assessment, a QC plan, and a quality assessment (CMS IQCP workbook). Software should store each test system's IQCP, its QC plan, and the ongoing quality assessment, with periodic review dates.

Feature-to-regulation map for clinical labs

Feature	CLIA reference	What to look for
Control procedures and frequency	42 CFR 493.1256	QC schedules by test system and level, with flags when QC is missed or unacceptable
Corrective actions	42 CFR 493.1282	Each failure linked to investigation, action, patient-impact review, and sign-off
Test systems, reagents, and lots	42 CFR 493.1252	Lot, package insert, expiration, and crossover records tied to results
Calibration and calibration verification	42 CFR 493.1255	Calibration events linked to the QC around them
Record retention	42 CFR 493.1105	QC and analytic records kept at least 2 years, with audit trails
IQCP	CMS IQCP workbook	Risk assessment, QC plan, and quality assessment per test system

5. Standalone QC vs. all-in-one LIMS vs. compliance platform: decision table

If your lab needs...	Standalone QC system	LIMS / LIS with QC module	Compliance management platform
Deep QC statistics (LJ, Westgard, Sigma, MU)	Core strength	Varies by product	LJ and Westgard review; ask about advanced statistics
Interlaboratory peer comparison	Core strength (usually tied to the vendor's controls)	Usually via a separate peer program	Usually via a separate peer program
Automatic QC capture from analyzers	Commonly offered	Commonly offered (results already in the system)	Ask the vendor
Sample, order, and result workflow	Not the focus	Core strength	Not the focus
Personnel, competency, PT, equipment, documents	Not the focus	Partial, varies	Core strength
CLIA/CAP/COLA survey evidence in one place	QC only	Partial	Core strength
Implementation effort	Moderate	Often high	Typically lower than a LIMS; confirm in a demo
Best fit	High-volume labs focused on analytical performance	Labs whose main problem is sample and result throughput, including pharma, R&D, and industrial	Clinical CLIA labs, POLs, clinic groups, and technical consultants

Many clinical labs combine options: a manufacturer peer program for statistics, an LIS for results, and a compliance platform for everything a surveyor reviews. Cells marked "varies" or "ask" mean the answer depends on the product.

6. What myLabCompliance.io does

myLabCompliance.io is CLIA compliance management software for clinical laboratories. Everything below comes from its public pages, linked in each item.

QC records with structure: QC package inserts, QC scheduling, instrument and group QC profiles, control lot management, multiple QC levels, target and control limits, and acceptance criteria (QC page).
Levey-Jennings charts: multiple levels, package insert limits, level and date-range selection, CSV export, report generation, and the ability to exclude a QC run from LJ reports while keeping the QC log row (QC page).
Westgard rule violation detection, plus fields for failure status, retry sessions, level-specific corrective actions, root cause, and resolution notes (QC page).
IQCP workflows and corrective action (QC page; CLIA page).
Inventory: tracking of reagents, controls, lot numbers, expiration dates, reorder alerts, and usage (QC page).
The rest of the CLIA program: personnel qualifications and competency assessments organized around the six CLIA competency elements (competency page); document control with review status, version control, and e-signature workflows (document control page, multi-site page); equipment maintenance, calibration, service records, and temperature monitoring; PT dashboards and corrective action; and linearity, precision, accuracy, and AMR validation studies (CLIA page).
Survey evidence: a survey grid that maps required records across laboratory, documents, personnel, QC, PT, instruments, equipment, and test menu areas, and links each gap back to its dashboard (inspection preparation page).
Roles, sites, and audit trails: role-based dashboards for lab owners, lab directors, technical consultants, QA, and testing personnel; organization-scoped records for each site with network-level dashboards and audit trails; and technical consultant approval of monthly reports with e-signatures (multi-site page).
Accreditors: CLIA, CAP, and COLA survey-prep workflows. Joint Commission requirements can be mapped to the same modules, but there is no dedicated Joint Commission checklist (multi-site page, COLA page).
Pricing: Small Lab from $299/month, Mid-Size Lab from $399/month, Large Lab from $1,299/month, and Reference / High-Volume Lab from $2,999/month (pricing).

What myLabCompliance.io is not: it isn't an interlaboratory peer-comparison program. Labs that want peer statistics should keep their control manufacturer's program and use myLabCompliance.io for QC workflows, investigations, and the rest of the CLIA record set. myLabCompliance.io organizes evidence and workflows. It doesn't replace accreditor guidance or the lab director's professional review.

Billing for lab tests is a separate topic. See our lab CPT codes guide.

Book a myLabCompliance.io demo

7. FAQs

What is lab quality control software?

Lab quality control software records control results, applies statistical process control (Levey-Jennings charts, Westgard multirules, mean, SD, and CV), flags runs that fail the lab's rules, and documents review and corrective action. Some products add interlaboratory peer comparison, Sigma metrics, instrument connectivity, and audit trails.

What is clinical laboratory quality control software?

It is QC software built for labs that test human specimens. In the US those labs fall under CLIA (42 CFR Part 493), so the software should support control procedures (493.1256), corrective actions (493.1282), and record retention (493.1105), along with the lab's accreditor checklist.

What are the main types of lab QC software?

Four types: standalone QC data management systems, often from control manufacturers, with peer comparison; QC modules inside a LIMS or LIS; cloud QC dashboards; and compliance management platforms that hold QC together with personnel, competency, PT, equipment, and documents.

Is 21 CFR Part 11 required for a CLIA lab?

21 CFR Part 11 sets FDA's criteria for electronic records and signatures kept under FDA records requirements, so it matters in FDA-regulated settings such as pharma and device QC labs. CLIA clinical labs follow 42 CFR Part 493, including the record retention rules in 42 CFR 493.1105. Audit trails and e-signatures are still good practice in a clinical lab.

How is the Sigma metric calculated?

Sigma = (TEa% - |Bias%|) / CV%. TEa is the allowable total error for the analyte, bias comes from peer or reference comparison, and CV is the lab's imprecision. Higher Sigma methods can usually use simpler QC rules; lower Sigma methods need more rules or more control measurements.

Do I need peer comparison?

CLIA doesn't require interlaboratory peer comparison, but it is a common way to detect bias that internal QC alone can miss. Peer programs are usually run by control manufacturers and work best when you use that manufacturer's control lots.

Does myLabCompliance.io include peer comparison?

No. myLabCompliance.io's public pages describe Levey-Jennings charts, Westgard rule violation detection, QC scheduling, control lot and package insert management, QC failure investigations, corrective action, and IQCP workflows. They don't describe an interlaboratory peer program, so labs that want peer data keep their manufacturer's program alongside it.

Should I buy standalone QC software or an all-in-one LIMS?

Pick standalone QC software when your main need is deep statistics and peer data across many analyzers. Pick a LIMS when sample and result workflow is the problem. Clinical labs whose pain is survey evidence across QC, personnel, competency, PT, equipment, and documents often add a compliance platform. Many labs run two of these together.

What is IQCP?

An Individualized Quality Control Plan is a CLIA QC option for eligible nonwaived tests. It consists of a risk assessment, a QC plan, and a quality assessment. CMS publishes an IQCP workbook explaining it.

8. Sources

Regulations and guidance

eCFR, 42 CFR Part 493: ecfr.gov; 42 CFR 493.1105; 42 CFR 493.1252; 42 CFR 493.1255; 42 CFR 493.1256; 42 CFR 493.1282
eCFR, 21 CFR Part 11; 21 CFR 11.1 (Scope)
CMS, CLIA; IQCP workbook

Vendor pages

Bio-Rad: Unity Real Time; User Guide; Westgard Advisor help
Thermo Fisher: LabLink xL; LabLink xL WEB; LabLink xL COMMUNICATOR
Technopath: IAMQC software; IAMQC Peer; IAMQC Infinity
InterQC (Vitro Group): interqc.com
StratusDX: QC module
Labguru: labguru.com
SmartLabTools: MedLabQC; home

myLabCompliance.io pages

Product names are trademarks of their owners. This page is educational and isn't legal or regulatory advice. Confirm requirements with CMS, FDA, your accreditor, and each vendor.