Qt
Depends
Confidence: Medium
Buy Qt if your team builds embedded, automotive, or cross-platform C++ applications . it is the mature industry standard.
New check
Comparison
Qt vs Flutter
Qt and Flutter both land on Depends.
Flutter
Depends
Confidence: Medium
Use Flutter if you have (or will hire) developers and want one free codebase for iOS, Android, web and desktop.
| Compare | Qt | Flutter |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Embedded and device UI teams | Startups shipping one app to iOS and Android |
| Who it's not for | Web-first or mobile-only startups . use Flutter | Non-coders wanting an app . learn a no-code tool instead |
| Privacy | Mature and actively patched, but a real CVE history exists including a 2025-2026 buffer overflow.⁹ | One patched SDK path-traversal flaw (CVE-2026-27704, patched Feb 2026); no open critical issues found in sources reviewed. |
| Support quality | No support evidence found | No support-quality evidence in sources |
| Public sentiment | Developers respect the framework's depth but repeatedly and loudly complain that commercial per-developer pricing is too expensive.¹ | Reviews are largely positive . users praise the single-codebase workflow . but long-term Reddit threads flag scaling and ecosystem gripes. |
| Biggest gotcha | Per-developer pricing scales brutally . forum users report $5,000+/yr per dev³ | Free SDK, expensive app: even simple Flutter apps carry real development price tags |
Pick Qt when
- Embedded and device UI teams
- Cross-platform C++ desktop apps
- Automotive and industrial software
- Teams needing long-term support releases
When Qt is not a fit
- Web-first or mobile-only startups . use Flutter
- Small teams that cannot absorb per-developer license fees
- Non-C++ teams wanting a quick UI toolkit
- Anyone unwilling to manage LGPL compliance obligations
Pick Flutter when
- Startups shipping one app to iOS and Android
- Teams with design-heavy custom UIs
- Budget-conscious MVPs with in-house devs
- Dart-comfortable engineering teams
When Flutter is not a fit
- Non-coders wanting an app . learn a no-code tool instead
- Simple one-screen apps . templates are cheaper than a framework
- Teams needing deep native Swift/Kotlin features
- Web-first products . Flutter web support is contested
Sources
- Qt Reviews . G2g2.comreview
- Qt Commercial Pricing is a Joke . Redditreddit.comreview
- Why is QT so expensive? . Qt Forumforum.qt.ioreview
review
official
- $499 for small companies and startups . Hacker Newsnews.ycombinator.comnews
- Qt CVE list . CVE Detailscvedetails.comsecurity
- CVE-2025-3512 . SentinelOnesentinelone.comsecurity
- Ubuntu 7780-1 Qt advisorylinuxsecurity.comsecurity
- Alternative to Qt . Slintslint.devofficial
- Companies that use Qt . TheirStacktheirstack.comnews
- Qt (software) . Wikipediaen.wikipedia.orgnews
- Flutter . official siteflutter.devofficial
- Flutter security overviewdocs.flutter.devofficial