Felgo
Felgo · Vienna, Austria · founded 2012
What it is
Felgo is a Qt-based SDK for building native cross-platform apps, games, and embedded applications. Developers mainly use QML and JavaScript, with C++ also supported. Felgo Live reloads code changes on connected devices after saving, avoiding build and deployment steps during iteration. The Game Engine focuses on 2D casual games and includes Box2D physics, particles, multi-touch, and animations. Felgo Apps can access device features such as cameras, sensors, and file systems, plus networking such as WebSockets, Bluetooth LE, and NFC. Projects in Felgo Cloud IDE can be built and deployed through browser-based Cloud Builds. Game Network provides achievements, leaderboards, challenges, cloud storage, and offline support across platforms. Felgo lists Android, iOS, Windows, macOS, Linux, and web support. It offers a free plan and trial. Startup costs €79 a month billed annually per developer and has an annual turnover limit under €100k; Business costs €245 a month billed annually and has unlimited annual turnover.
For and against
For
- Supports QML, JavaScript, and C++.
- Live reloads code on connected devices.
- Includes device access and networking features.
- Cloud Builds work through a browser.
Against
- Startup turnover limit is under €100k.
- Startup includes one hour of premium support per year.
- Business costs €245 a month billed annually.
The verdict
Felgo combines cross-platform app development with game and embedded application tooling. The free plan and trial offer a starting point, while paid licenses specify different turnover limits and support allowances.
Who it suits
Felgo suits developers building apps across mobile, desktop, or web, as well as teams making 2D casual games or embedded applications. Its turnover limits and support allowances may also matter to companies selecting a license.
Plans and prices
Startup
Annual turnover under €100k · 1h/year premium support · mobile, desktop, web, Raspberry and Arduino platforms · source code access
Read 28 Sep 2026 · felgo.com
Business
Unlimited annual turnover · 1h/month premium support and services · mobile, desktop, web and embedded platforms · all engine features
Read 28 Sep 2026 · felgo.com
Personal
All platforms · annual turnover under $50k · community support · monetization plugins
Read 15 Oct 2026 · felgo.com
Indie
All platforms · annual turnover under $100k · one hour email support
Read 15 Oct 2026 · felgo.com
Enterprise
Unlimited annual turnover · personal support and training · email, chat and phone support · five-hour free evaluation
Read 15 Oct 2026 · felgo.com
On the record
- API extensibility
- Existing Qt applications can reuse their code with Felgo, and Felgo plugins can be added to Qt projects without Felgo components.felgo.com · read 15 Oct 2026
- API surface
- The SDK extends Qt with more than 200 Felgo APIs and development tools.felgo.com · read 15 Oct 2026
- App-store presence
- Felgo GmbH publishes Felgo QML Developer apps and other demonstration apps on Apple's App Store.apps.apple.com · read 15 Oct 2026
- Backend features
- Felgo Cloud includes cloud storage, chat, user authentication and friend-system capabilities in the paid plan comparison.felgo.com · read 15 Oct 2026
- Cloud builds
- Felgo offers Cloud Builds for continuous integration and delivery of Qt and Felgo projects.felgo.com · read 15 Oct 2026
- Company
- Felgo identifies itself as FELGO GmbH and lists offices in Vienna and Linz, Austria.felgo.com · read 28 Sep 2026
- Company facts
- LinkedIn lists Felgo as privately held, founded in 2012, headquartered in Vienna and employing 11–50 people.linkedin.com · read 15 Oct 2026
- Company legal name
- The product and associated services are provided by FELGO GmbH.felgo.com · read 15 Oct 2026
- Core languages
- Felgo development uses QML and JavaScript, with Qt and C++ available for deeper integrations.felgo.com · read 15 Oct 2026
- Documentation depth
- Documentation includes installation, deployment, API references, tutorials, examples, native integration, plugins, networking, storage, maps, sensors, AR, machine learning and accessibility.felgo.com · read 15 Oct 2026
- Free evaluation
- Felgo offers companies a free Business evaluation with access to Business features, up to five hours of professional services and priority support.felgo.com · read 28 Sep 2026
- Games
- The Felgo Game Engine focuses on 2D casual games and includes components such as Box2D physics, particles, multi-touch and animations.felgo.com · read 28 Sep 2026
- Game services
- Felgo Game Network provides cross-platform achievements, leaderboards, challenges, cloud storage and offline support.felgo.com · read 28 Sep 2026
- Game tooling
- The product includes game components, a level editor and Felgo Game Network features for sharing user-created levels.felgo.com · read 15 Oct 2026
- Google Play listing
- Felgo 4 QML Dev App is listed on Google Play with 1K+ downloads and support from FELGO GmbH in Vienna.play.google.com · read 15 Oct 2026
- Hot reload
- Felgo Hot Reload lets developers change QML and JavaScript and see updates without rebuilding and redeploying.play.google.com · read 15 Oct 2026
- Installation
- Installing the SDK requires a Felgo account, platform prerequisites and downloading the Felgo installer.felgo.com · read 15 Oct 2026
- Integrations
- Official plugins cover AdMob, Amplitude, Apple Sign In, Chartboost, Facebook, Firebase, Flurry, Game Center, OneSignal, OAuth 2.0 and other services.felgo.com · read 15 Oct 2026
