Petal
An assistant that stays on your phone
Ask by voice or text. Petal runs its language model locally, handles timers, apps and the torch, and never sends your prompts to a hosted model.
Calm, responsive,
recognisably yours.
petalOS is a custom Android ROM with a quiet canvas, tactile controls and a private on-device assistant. It's the Android you already know, put together with care.
01
Continuity
The lock screen, Home, the shade, Settings and the bundled apps share one set of materials, type and shapes.
02
Response
Every control follows your touch straight away, with motion and haptics tuned to explain what changed.
03
Restraint
Every highlight, blur and animation has a clear job. Information comes first, and effects come second.
Built in, not bolted on
petalOS apps are designed alongside the system, so they look and behave like part of it.
Content blocker
Block ad and tracker domains system-wide. No root needed. Pick your lists and add your own domains.
Bypass charging and game mode
Set charge limits and thermal limits, tune the CPU and GPU, and play distraction-free.
Universal AutoMix
Get smooth crossfades between any tracks, from any source, mixed by the BridgeFX effect.
OEM extensions
Portrait, night and HDR use your phone's own camera extensions where the hardware supports them.
Depth that keeps the time clear
Draw loosely around your subject and AI finds the edges, so it can stand in front of the clock.
petalOS Hub
Make it yours, without making it messy
Choose an accent, follow your wallpaper's Material 3 palette, and pick the system font. Customisation changes how petalOS looks, not how clear it is.
Windows programs
petalOS's own Windows-compatibility stack. Import an EXE from Hub and run it on your phone.
Supported devices
Each device gets official, signed builds with over-the-air updates.
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Find your build on Harbour Dock
Every official petalOS build in one place, with SHA-256 checksums. It's free and you don't need an account.