OutSystems vs Mendix

OutSystems and Mendix both land on Depends.

OutSystems

Depends

Confidence: Low

Built for large enterprises shipping mission-critical apps that need governance, security, and budget for a heavyweight platform.

Depends

Confidence: Medium

Buy only if you are a large enterprise standardizing on governed low-code with admin and security budget.

OutSystems versus Mendix
Compare	OutSystems	Mendix
Verdict	Depends	Depends
Best for	Large enterprises with complex app portfolios	Large enterprises building custom internal apps
Who it's not for	Small teams needing a simple internal app	Small teams that just need a simple app
Privacy	One HIGH-severity CVE (CVSS 7.5) reported in tracked sources; vendor publishes a dedicated product security page.^³	Multiple public CVEs in 2025-2026 (Runtime, SAML module, Studio Pro); Siemens publishes advisories via its CERT portal and maintains a trust page.¹¹
Support quality	No user support feedback in sources	No support evidence in sources
Public sentiment	Independent user feedback is scarce; the only review-aggregation note describes sentiment as mixed.^⁴	Evidence contains almost no independent user reviews . most sources simply reshare Mendix marketing pages.¹⁶
Biggest gotcha	No published prices in reviewed sources . expect enterprise sales quotes, not self-serve.^⁵	CVE-2026-80465 scores 8.7 (account hijack); budget for ongoing patch management¹¹