Free to start. Pay when it saves you time.
Start free with Dongle King and UXB-300. Upgrade when your projects grow.
| Dongle King | UXB-300 Free | UXB-300 Pro | UXB-500 | |
|---|---|---|---|---|
| Price | Free | Free | About $5 a month or $49 a year | About $10–12 a month or $99 a year |
| Status | Available | Available | Early 2027 | Early 2027 |
| Includes | Raw I2C, SPI and GPIO on 10+ pre-defined USB adapters | Model your chip: register maps, scripts, Packet Builder for your own dongle, live use. Save, publish and share up to 3 projects. Open projects shared with you. | Everything in Free, plus unlimited projects, script export and import, priority support | Everything in Pro, plus: model your system across several chips. Drag in controls, script, plot, log to CSV, brand and share with anyone, even on free UXB-300. |
| Open | Open | Join the waitlist | Join the waitlist |
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