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ReliaStats is downloadable desktop software for Mac and Windows — distribution fitting and interrupt parameterization for manufacturing production simulation. Start free with the Designer, then download the full version for automated fitting and the Interrupt Viewer, Comparison, and Validation tools.

Downloadable desktop software · Mac & Windows · Per-user annual license · Runs offline

ChiAha
ReliaStats Designer
$0
/ user
forever
Free account required · No credit card needed
⬇ Download the Designer Or create a free account
What's included
  • ✓ Interrupt Designer — TTF + TTR pair visualization
  • ✓ State timeline over configurable shift window
  • ✓ Box-and-whisker percentile view (p5–p95)
  • ✓ All 8 ReliaSim distribution types
  • ✓ PDF, CDF, and Survival function views
  • ✓ Availability % computation
  • ✓ Download and run locally — works fully offline
Most Popular
ChiAha
ReliaStats
$1,800
/ user
/ year
Mac & Windows desktop · Download & install · Billed annually · Purchase orders welcome · Node-locked license · Tax applied at checkout
Buy & Download
Everything in Designer, plus
  • ✓ Interrupt Viewer — browse any ReliaSim interrupt file
  • ✓ Interrupt Comparison — diff two interrupt files side by side
  • ✓ Interrupt Validation — scatter source vs. sim availability with PI / CI bands
  • ✓ Import raw failure & repair event logs
  • ✓ Automatic cause group identification
  • ✓ Automated distribution fitting to all 8 types
  • ✓ Goodness-of-fit tests (Kolmogorov-Smirnov, Anderson-Darling)
  • ✓ Distribution ranking and model selection
  • ✓ Export fitted CSV directly for ReliaSim import
  • ✓ Phone and dedicated support
🔒 Runs entirely on your machine. Distribution fitting executes locally inside the downloaded desktop application — no cloud dependency. Your event data never leaves your computer.

All plans include

🔒 Data never leaves your machine — no server uploads
💻 Downloadable desktop software — Mac & Windows
📶 Runs fully offline — no cloud dependency, air-gap friendly
🔄 Annual updates while subscription is active

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Free Fitting
Visualization & Design
Interrupt Designer TTF + TTR pair with shift timeline and box-and-whisker ✓ ✓
All 8 distribution types Weibull, LogNormal, Normal, Exponential, Uniform, Triangular, Johnson SU, Fixed ✓ ✓
PDF, CDF & Survival curves ✓ ✓
Availability % computation From Mean TTF and Mean TTR ✓ ✓
Review & Comparison
Interrupt Viewer Browse and visualize any ReliaSim CSV ✓ ✓
Interrupt Comparison Diff two CSVs with color-coded severity and Δ% column ✓ ✓
Distribution Fitting
Import raw event logs Historian data, failure and repair timestamps — ✓
Automated distribution fitting Fits all 8 types and ranks by goodness-of-fit — ✓
Goodness-of-fit tests Kolmogorov-Smirnov and Anderson-Darling — ✓
Export fitted CSV for ReliaSim — ✓
License & Support
License type Free account Node-locked, per user
Billing Free Annual
Support Community Phone & dedicated messaging

Need purchase orders, volume licensing, or custom enterprise pricing?

Contact us →
ReliaSim

ReliaSim — Production Decision Intelligence

Click-connect production modeler. Build, simulate, validate, and experiment — desktop software, no integration required.

🍎
ReliaSim Mac
Apple Silicon M1+
$8,000
per user / year
Buy Now
🪟
ReliaSim Windows
Windows 11
$8,000
per user / year
Buy Now

Node-locked · Annual subscription · Phone & cloud support included

Frequently asked questions

What does "Free account required" mean for the free plan?
The free Designer is yours to download and use. Creating an account lets us keep you updated on new features and releases. No credit card is needed.
What is ReliaStats replacing?
ReliaStats is the evolution of Wishbone — ChiAha's original distribution fitting tool. It automates the expert-intensive process of converting raw historian event data into parameterized TTF and TTR distributions ready for ReliaSim.
How does ReliaStats compare to JMP?
General-purpose statistical suites run $1,300–$1,900+ per user per year — JMP starts around $1,320/yr and Minitab around $1,851/yr — for broad enterprise use. ReliaStats is purpose-built for reliability engineers working specifically with ReliaSim — it understands the interrupt model and outputs ReliaSim-ready CSVs. At $1,800/user/year (billed annually, purchase orders welcome) it undercuts those suites while doing the one job they make you assemble by hand.
Is my data safe?
Yes. ReliaStats is desktop software that runs entirely on your own machine. Distribution fitting and all analysis execute locally inside the downloaded application — no event data is uploaded to any server, and the software runs fully offline, making it air-gap friendly for OT and validated environments.
What does "node-locked" mean?
A node-locked license is tied to a single machine. If you need to move to a different machine, contact us. For team licensing, see enterprise pricing.
Is ReliaStats available now?
Yes. ReliaStats is shipping today as downloadable desktop software for Mac and Windows. Purchase includes the full distribution-fitting toolset, and subscribers receive updates throughout their subscription year.