Side by side
B4X vs Felgo
Both stand on cross-platform app development frameworks. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneLinux+2
B4X spans mobile, desktop, server and IoT development, with free tools and paid licenses. Review B4i's requirements and hosted builder limit if iOS development is part of your plans.
Visit B4X
Free plan AndroidAPIExtension+5
Felgo combines cross-platform app development, game tools, and device integrations in a Qt-based SDK. Review the annual turnover limits and billing terms for the license that fits your organization.
Visit FelgoThe facts
| B4X | Felgo | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | No |
| Runs on | Android, iPhone, Linux, Mac, Windows | Android, API, Extension, iPhone, Linux, Mac, Web, Windows |
| Lowest paid plan | B4A Standard: $59, paid once | See the plans |
| Plans published | 10 | 5 |
| Maker | Not published | Felgo |
| Website | b4x.com | felgo.com |
| On cross-platform app development frameworks | #1 of 62 | #2 of 62 |
B4X: what it does well
- B4A, B4R and B4J are free for commercial use
- Projects can share 90%+ of code
- Includes a visual UI designer
- B4J supports desktop, server and IoT work
- B4i Standard costs 59.00 USD once
What to know first
- B4i requires an Apple developer account costing $99 per year
- Hosted Mac Builder supports projects up to 50mb
- B4i IDE requires Windows 7 64-bit or a VM
Felgo: what it does well
- Live reload updates code on connected devices
- Game Engine includes Box2D physics and animations
- Apps can access cameras, sensors, and file systems
- Cloud Builds can build and deploy from a browser
What to know first
- Startup license has an annual turnover limit under €100k
- Personal license has an annual turnover limit under €50k
- Business costs €245.00 per month billed annually