ReliCheck Quanta app icon

ReliCheck Quanta

Native to the Mac. True to your research.

The statistics software Mac researchers actually reach for: validated for social, behavioral, and health science, and built the way you work.

Apple Silicon · macOS 14 or later · notarized by Apple · v0.9.93 · subscription required after a 30-day trial

One app, two parts

Quanta for the daily work. Advanced for the heavier models.

Every researcher starts with Quanta. When a study calls for multilevel, latent class, survival, mediation, or invariance models, the Advanced tier adds them inside the same app, validated the same way.

Quanta

$9.99/month or $79.99/year after a 30-day free trial

  • Descriptives, t-tests, ANOVA, ANCOVA, and nonparametric tests
  • Correlation and regression, linear through ordinal
  • Reliability, factor analysis, PCA, and cluster analysis
  • SEM and CFA with the full fit indices
  • Survey weights, multiple imputation, and Bayes factors
  • APA 7 tables and the report builder
Every analysis
Annual add-on

Quanta Advanced

$179/year, everything in Quanta included

  • Multilevel and mixed models, linear through ordinal, with random slopes, crossed, and three-level designs
  • Latent class, latent profile, and factor mixture models
  • Survival analysis: Kaplan-Meier and Cox regression
  • Mediation and moderation with bootstrapped indirect effects
  • Measurement invariance testing across groups
See the Advanced analyses
Start your 30-day free trial

No account needed. The trial is the full app.

Chapter one · Your data

Start from the file you already have.

01 · IMPORT

CSV, Excel, SPSS, Numbers. Drop it in.

Whatever your survey tool exported, Quanta reads it. The import dialog checks the structure before you do anything else.

02 · TYPES

Variable types, sorted on arrival.

Scales, categories, and identifiers detected and classified as the file lands. You confirm in the Data Map instead of declaring everything by hand.

Quanta import dialog reading a survey file Quanta variable types classified on import

Then the part every other package makes you dig for: the evidence, laid out in front of you.

Chapter two · The evidence

Every result arrives already explained.

01 · RELIABILITY

Every item, on one screen.

Cronbach's alpha, McDonald's omega, and the item diagnostics together, so the scale's health is one look, not five menus.

02 · DIAGNOSTICS

Know which item is dragging the scale.

Item-total statistics and alpha-if-deleted, side by side. The weak item has nowhere to hide.

03 · RELATIONSHIPS

Correlations that arrive publication-ready.

The matrix formats itself to APA as it computes. What you see is what the manuscript gets.

04 · PLAIN LANGUAGE

A plain-language read under every result.

ReliCheck Intelligence writes a sentence explaining what the number means, underneath the number. It runs on your Mac, so nothing is sent anywhere to produce it.

Quanta reliability analysis with Cronbach's alpha and McDonald's omega Quanta item-total diagnostics with alpha-if-deleted Quanta APA-formatted correlation matrix ReliCheck Intelligence writing a plain-language explanation beneath a reliability result, marked on-device and private

And when the analysis is done, the writing is already started.

Chapter three · The write-up

Findings become a report as you go.

01 · FINDINGS

Results collect into an editable report.

No final assembly step. Each result you keep joins the report, APA-formatted, as you work. You write around the tables instead of rebuilding them.

02 · APA 7

Tables that already follow APA 7.

Leading zeros, italics on the right symbols, notes in the right order, df where APA puts it.

03 · EXPORT

Word, PDF, or RTF, formatting intact.

The hour of reformatting between the output window and the manuscript disappears.

Quanta report builder with APA findings A finished APA 7 table in Quanta with correct leading zeros, italic symbols, and the note line beneath Quanta exporting a formatted report to Word, PDF, or RTF
Modelling

Confirmatory factor analysis, with the fit indices.

CFA and structural equation modelling with the fit statistics reviewers ask for, reported together rather than one at a time.

Quanta confirmatory factor analysis with fit indices
Validated

The validation record is published, method by method.

Every method lists the reference it was checked against and how far the agreement holds. Univariate summary and linear regression are validated against NIST reference datasets, to nine digits and beyond. Read the validation record.

Quanta per-method validation record showing univariate summary and linear regression checked against NIST reference datasets
Private

Your data never leaves the machine.

Analysis runs entirely on your Mac and works offline. The network is used once to confirm your subscription and never for your data. For IRB-covered work, that is a one-sentence answer.

Quanta completing a reliability analysis while the Mac Control Center shows Wi-Fi switched off
Native

One signed app. Built for Apple silicon.

Pure Swift on Apple's own maths frameworks. No R, no Python, no package manager. Written for the architecture rather than translated onto it.

ReliCheck Quanta installed in the Applications folder as a single signed app
Honest

It tells you what a result cannot support.

Reliability is evidence, not proof of validity. A group difference is association, not causation. Quanta labels small samples cautiously and says so on the result, where it matters.

Quanta reporting a pilot-sized result and stating that the small sample should be treated as unstable descriptive evidence

Careful by default.

The software will not overstate a finding to look impressive. If the evidence is thin, the output says the evidence is thin. That is the whole design position. The safeguards are contextual recommendations, never restrictions: Quanta surfaces the analyses that fit your design and flags mismatches, and every test stays available to run.

It asks who your data represents. Before you analyze it.

A mean is only as honest as the sample behind it. Quanta's representation checks make that visible where statistical software never has: missingness by group shows whether nonresponse fell evenly or quietly removed one community from your results. Sample vs population tests your sample's composition against the benchmarks you enter and names which groups are over- or under-represented. Grouped descriptives flag small groups instead of collapsing them, so no one disappears from the table. Every finding starts from an answer to the question most analyses skip: who is actually in this data, and who is missing from it. In the base app, for everyone.

Workflow

Setup on the right. Results in the centre.

The layout stays put as you move between analyses, so the thing you are reading is always in the same place and the thing you are changing is always in the same place.

Quanta three-pane layout with the source list on the left, results in the centre, and setup on the right
Pricing

One price. Buy it wherever you prefer.

Thirty days free, no account needed. Then one subscription price for everyone: subscribe in the app or get it on the Mac App Store. Same price either way. Direct download gets updates the moment they ship.

Quanta pricing: a 30-day free trial, then one price for everyone, monthly or annual
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Quala

Your interviews, codebook and themes never leave your Mac.

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MM Studio

Numbers and narratives, one defensible story.

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Resources

Common questions

Does Quanta run on my Mac?

Quanta is built for Apple Silicon and requires macOS 14 or later. It is a single signed, notarized app: download it, open it, and work.

Do I need R or Python installed?

No. Every analysis runs in Quanta's own engine, written in Swift on Apple's math frameworks. There is no environment to set up or maintain.

Can I trust the numbers?

Every statistic carries a published validation record checked against NIST reference datasets and published statistical standards. The record ships inside the app.

What files can I import?

CSV, TSV, Excel, Apple Numbers, SPSS (.sav), and Stata (.dta), plus ReliCheck survey packages. Variable types are detected on import.

Does my data leave my Mac?

No. Analysis runs entirely on your machine and works offline. The network is used only to confirm your subscription.

How do I buy it?

Start with a 30-day free trial, no account needed. Then subscribe in the app, or get it on the Mac App Store. One simple price for everyone. The Advanced tier is a single annual plan that includes everything in Quanta.

How to cite Quanta

If Quanta contributed to a published analysis, please cite it in your methods section. Cite the version you actually used; the version is shown in the app under the About window.

ReliCheck LLC. (2026). Quanta (Version 0.9.92) [Computer software]. https://relicheck.com/quanta/

If a reviewer asks how the numbers were checked

ReliCheck LLC. (2026). Numerical validation of the ReliCheck Quanta statistics engine (Version 1.0). Zenodo. https://doi.org/10.5281/zenodo.21894733