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Head-to-head · Business Rules Management Software

DecisionRules vs Drools

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score DecisionRules #6 in Business Rules Management Software 8.7/10 Free plan · 14-day trial Free planFree trial✓ 4 of 5 features Visit DecisionRules
Drools #7 in Business Rules Management Software 8.5/10 Open source ✓ 5 of 5 features Visit Apache KIE

DecisionRules leads on 0 checks, Drools on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreDecisionRules · 8.7/10
  • Free planonly DecisionRules
  • Free trialonly DecisionRules
  • Most featuresDrools · 5 of 5

DecisionRules scores higher on our rubric for business rules management software: 8.7 against 8.5 out of 10; our editors rank them #6 and #7.

DecisionRules is the better fit for feature-rich teams wanting a free entry plan. Drools is the better fit for java teams wanting mature open-source BRMS.

  • DecisionRules fits best

    Feature-rich teams wanting a free entry plan

  • Drools fits best

    Java teams wanting mature open-source BRMS

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature DecisionRules 8.7/10 Visit ↗ Drools 8.5/10 Visit ↗
At a glance
Editor score 8.7 8.5
Ranking #6 in Business Rules Management Software #7 in Business Rules Management Software
Best for Feature-rich teams wanting a free entry plan Java teams wanting mature open-source BRMS
Pricing model Free plan + paid Free
Starting price €291/mo Open source
Free plan ✓ (best) Not checked yet
Free trial 14 days —
Deployment Cloud, Self-hosted Self-hosted
Support Tickets, Docs · 24/7 Community, Docs
Integrations 16 integrations 6 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features DecisionRules 4/5 · Drools 5/5
Decision tables ✓ ✓
Visual rule authoring ✓ ✓
Rule testing tools ✓ ✓
DMN support Not checked yet ✓ (best)
Natural-language rules ✓ ✓
Specs
Deployment options Not checked yet Not checked yet
Execution access Both Both
Our review
Pros
  • Visual tables, trees, flows, testing, debugging, and version comparison
  • Free plan includes AI Assistant, database connectors, and 1,000 Solver API calls
  • Supports public cloud, private managed cloud, self-hosting, Docker, and Kubernetes
  • Supports forward- and backward-chaining rules with DRL
  • Combines DMN Level 3, decision tables, and visual modeling
  • Runs embedded in Java or through Kogito REST microservices
Cons
  • Free plan is limited to 1 user, 1 project, and 10 Business Rules & Flows
  • Lite starts at €291 per month or €3,500 per year
  • Premium pricing is custom and advanced security is reserved for that tier
  • Technical teams must manage the Java-based implementation
  • Its broad feature set may exceed narrow rule-engine needs
  • Commercial support and enterprise offerings are separate from Drools
Our verdict

DecisionRules is a business rules management platform for business and engineering teams that need to author, test, manage, and execute decision logic. Its visual Decision Tables, Decision Trees, Decision Flows, Integration Flows,…

Read the review →

Drools is an open-source, Java-based rule engine and decision management project for developers building business automation applications. It is aimed at technical teams that need executable business rules, decision services, or…

Read the review →
  1. DecisionRulesBusiness Rules Management Software 8.7Free plan · 14-day trial
  2. DroolsBusiness Rules Management Software 8.5Open source

Strengths and trade-offs

  • DecisionRules — where it wins

    • Visual tables, trees, flows, testing, debugging, and version comparison
    • Free plan includes AI Assistant, database connectors, and 1,000 Solver API calls
    • Supports public cloud, private managed cloud, self-hosting, Docker, and Kubernetes

    Where it doesn't

    • Free plan is limited to 1 user, 1 project, and 10 Business Rules & Flows
    • Lite starts at €291 per month or €3,500 per year
    • Premium pricing is custom and advanced security is reserved for that tier

  • Drools — where it wins

    • Supports forward- and backward-chaining rules with DRL
    • Combines DMN Level 3, decision tables, and visual modeling
    • Runs embedded in Java or through Kogito REST microservices

    Where it doesn't

    • Technical teams must manage the Java-based implementation
    • Its broad feature set may exceed narrow rule-engine needs
    • Commercial support and enterprise offerings are separate from Drools

More comparisons

All business rules management software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update