Build defensible AHP models: pairwise comparisons, consistency checks, sensitivity analysis, thesis-ready reports. 125+ peer-reviewed citations. Free 7-day trial.
Decision analysis software since 2007
Decision analysis, without the complexity.
Analytic Hierarchy Process, Decision Tree Pro, and the Rational Will® bundle: professional desktop tools for rigorous decision-makers. Software you own outright - no cloud dependency, no monthly fees, and every formula is one click from its citation.
Real product screens: AHP Software and Rational Will®
150+
published academic papers cite SpiceLogic software - and counting
19 years
of continuous development, since 2007
Perpetual
license - pay once; no renewal needed to keep using your version
Trusted by decision-makers at
Shell
U.S. Navy
U.S. Army
Samsung
Intel
Siemens
Product suite
Pick your method. Own the tool.
Each tool is a complete implementation of a normative decision-theory method. Standalone, or bundled in Rational Will®.
Decision tree software with Markov models, Monte Carlo simulation, sensitivity analysis, and cost-effectiveness (QALY) outputs for HTA and high-stakes decisions.
Decision trees, AHP, Markov decision processes, Bayesian inference, and multi-criteria analysis in one desktop suite. Pay once, use forever. Free 7-day trial.
Build Bayesian networks in a point-and-click desktop app. Model hypotheses, run Bayesian inference, and watch beliefs update with evidence. Free trial.
Audiences
Built for serious decision-makers.
Four groups use SpiceLogic software for different decisions - the same methods, different reporting needs.
Health economists & HTA analysts
Submissions to NICE, CADTH and PBAC.
Build cost-effectiveness models with QALY and DALY payoffs and Markov cohorts. Export reports that meet the method requirements of each agency.
See Decision Tree Pro →Defense, energy & government procurement
Multi-criteria evaluation, with a clear audit trail.
Score suppliers, sites, or platforms on weighted criteria. Reach group consensus through AIJ and AIP aggregation without any cloud dependency.
See AHP Software →Academic researchers & PhD students
Cited in peer-reviewed journals worldwide.
Discounted academic licenses, models that can be reproduced, and a citation index that shows prior use of each method in published research.
Academic citation program →Enterprise strategy & operations
Capital allocation and supplier selection.
Measure portfolio decisions with stochastic dominance and real-options frameworks. Outputs are structured for board and investment committee review.
See Rational Will →Why SpiceLogic
Engineered for decisions that must stand up to scrutiny.
Actively developed since 2007. Every model exports audit-ready PDF and Excel reports with full traceability - every probability, weight, and assumption is captured, so your analysis stands up months later.
Own your license. No subscription.
- Pay once, keep your version. Your license never expires and never needs a renewal to keep working.
- A year of upgrades included. Extending update coverage later is optional, never required.
- No monthly fees. No auto-renewal. Works offline - your data stays on your machine.
Cited in the literature
Used in 150+ academic publications worldwide.
SpiceLogic tools appear in published research across health technology assessment, supply chain management, sustainability, energy, and public-policy decision analysis - in journals indexed by Springer, IEEE, Elsevier, and Facta Universitatis, among others.
View the full citation index →For .NET developers
Component libraries for WPF and WinForms.
Drop-in controls for .NET desktop applications. Available on NuGet - add rich HTML editing to your app in minutes.
WPF · .NET control
WPF HTML Editor Control
Native WPF WYSIWYG HTML editor control with rich text formatting, MVVM binding, safe Word paste, and source code. Free 14-day trial.
Perpetual developer license · royalty-free distribution
Install-Package SpiceLogic.HtmlEditor.WPF
WinForms · .NET control
.NET WinForms HTML Editor Control
Drop-in WYSIWYG HTML editor for C# and VB.NET WinForms apps. NuGet install, .NET 4.5 to .NET 10, spell check, mail merge, source code.
Perpetual developer license · royalty-free distribution
Install-Package SpiceLogic.HtmlEditor.WinForms
Talk to the engineers, not a chatbot.
Your questions are answered by the engineering team behind the software - in a live Zoom or Teams session, or by email within one business day. Bring a real decision and we will help you model it.
No NDA · no sales script · free to evaluators.