Side by side

Infer vs Understand

Infer

6.7#5 in c and c++ static analysis toolsFree plan

Free planWebLinuxmacOSSelf-hosted

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Understand

7.2#2 in code search toolsFrom $100 a month

APIExtensionLinuxmacOS

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What both publish

Fact	Infer	Understand
Languages	The documentation lists Java, C, C++, Objective-C, and Erlang; the latest release notes also describe Python and Swift frontends and an experimental Rust frontend.	Supported language families include Ada, assembly, C/C++, C#, Fortran, Java, JOVIAL, Pascal/Delphi, Python, VHDL, Visual Basic and web languages.

Infer plans

Infer (free)Free

Understand plans

Understand subscription$100 a month
Understand annual subscription—

Pick Infer if…

Infer suits developers and teams who want static checks for supported languages before code ships, including in CI workflows. It is not suitable for Windows-native use, and it only analyzes files captured during compilation.

Pick Understand if…

Understand suits developers and teams working with supported languages who need code navigation, analysis, or CI automation. Its offline operation and local AI option may suit projects with strict data-handling needs.

Charts they share

C and C++ Static Analysis Tools Static Analysis Tools