Compare software

SonarQubeUnderstand
Freemium

Free starting option, with paid plans for larger teams and more features.

 Paid

Commercial software with a free trial.

Web, Self-hosted macOS
  • Self-hosted server or managed cloud option
  • Tracks technical debt and reliability as well as security
  • Cross-references, call trees and dependency analysis
  • Many graph types with plugin support and export
  • Running the server yourself needs infrastructure and maintenance
  • Advanced features are in paid plans
  • Paid after the trial
  • More than most small projects need
Self-hosted, Hosted service Downloadable app
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.