Understand

Name: Understand
Price: 100120 USD

Understand is ranked #5 of 40 in code search tools on Freedom251. It runs on API, Browser extension, Linux, macOS, Self-hosted, Windows. A free trial is offered. Paid plans start at $8343.33/mo.

Understand plans and pricing

All plans

Understand annual subscription $100,120/yr annual subscription; minimum term of 12 months Developer license excludes und command-line automation, API access, and exporting dependencies, graphs, metrics, CodeCheck results and reports scitools.com · 2 Oct 2026

Compared on code search tools

Free plan: Yes
Paid from: $100/user/mo
Security analysis: Yes

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Understand

Product purpose: Understand is a static analysis and code-comprehension tool that builds a cross-referenced model of source code without running it.
Core features: It provides an Information Browser, graphs, architectures, metrics, CodeCheck, version comparison, APIs, the und CLI, and AI chat.
Code navigation: Understand supports cross-references, call trees, dependency analysis, and visual graphs including butterfly and control-flow graphs.
Language support: Supported languages include C/C++, C#, Fortran, Java, Python, Rust, VHDL, Visual Basic, and web languages including HTML, CSS, JavaScript, TypeScript, PHP, and XML.
Desktop platforms: Current supported operating systems are Windows 11 x64, RHEL/CentOS 8.6+ or Ubuntu 22.04+ on x86_64 Linux, and macOS Monterey 12 or later on Intel and Apple Silicon.
Automation: Understand runs from the command line for automation and CI, and an official Docker image is published on Docker Hub.
VS Code integration: The Understand for Visual Studio Code extension surfaces code navigation and CodeCheck violations inside VS Code and is separately licensed.
Local AI privacy: With the bundled local model, source code, prompts, and generated descriptions stay on the user's hardware and are not sent to SciTools or third parties.
Cloud AI data handling: Choosing ChatGPT, Claude, Gemini, Grok, or a custom endpoint sends each request, including embedded code context, to that provider and requires an API key plus explicit data-sharing acknowledgement.
Air-gapped operation: Installation, analysis, metrics, CodeCheck, reports, graphs, and local AI can run without internet access using offline licensing.
Compliance certifications: Understand is certified for use as a support tool on projects requiring ISO 26262, IEC 61508, and EN 50128 compliance.
Free educational license: Students and teachers can obtain a free educational license for non-commercial educational use, renewable yearly, with all Understand features unlocked.
Support: SciTools provides product support by email and lists office hours Monday through Friday, 9 AM–5 PM Mountain Time.
Founded: 1996
Price from: $8343.33/mo

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Where it ranks on Freedom251

Best Code Search Tools in 2026#5 of 40
Best Static Analysis Tools in 2026#11 of 38
Best C and C++ Static Analysis Tools in 2026#10 of 24

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Sources

ai-docs.scitools.com/help/getting-started/what-is-understand· checked 2 Oct 2026
scitools.com· checked 2 Oct 2026
docs.scitools.com/help/getting-started/supported-language· checked 2 Oct 2026
docs.scitools.com/help/getting-started/install.html· checked 2 Oct 2026
ai-docs.scitools.com/help/editor/understand-for-vscode.html· checked 2 Oct 2026
docs.scitools.com/help/ai/ai-permissions-and-privacy.html· checked 2 Oct 2026
ai-docs.scitools.com/help/air-gapped/install-offline.html· checked 2 Oct 2026
scitools.com/features· checked 2 Oct 2026
docs.scitools.com/help/licensing/educational-license.html· checked 2 Oct 2026
scitools.com/contact· checked 2 Oct 2026
scitools.com/pricing· checked 2 Oct 2026