Mobile App
Free focus timer, distraction blocker, and remote control for BUSY Bar — on iPhone, Apple Watch, Android, and Wear OS.
Focus timer. Pomodoro sessions with breaks, or open-ended deep work.
BUSY Bar remote control. Manage the device over Wi-Fi or Bluetooth.
Music themes. Themed visuals and music stations for deep work.
App blocker. Block distracting apps and track attempts to open them.
Cross-device sync. Sessions follow you across phone, watch, and computer — via BUSY Cloud or locally.
Hover over a store to see its
QR code
Desktop App
Focus timer and BUSY Bar control — in the menu bar on macOS.
Menu-bar launcher. Start your focus session in one click.
Control your BUSY Bar. Connect to your device via USB or remotely to update firmware and manage Wi-Fi settings.
Automatic ON CALL status. BUSY Bar shows ON CALL when your microphone is active, so others know you're busy.
Sync across devices. Log in once and follow your focus sessions on any device — phone, computer, smartwatch, and BUSY Bar.
Firmware Sources
Source code of BUSY Bar firmware packaged with build and debug toolkit (FBT)
BUSY Bar firmware sources — official firmware source written in C and licensed under GPLv2, targeting the STM32U5 main MCU and the SiWG917 wireless co-processor (Wi-Fi, Bluetooth LE, Matter).
Flipper Build Tool (FBT) — all-in-one firmware development toolkit with Visual Studio Code support, USB flashing, and on-device debugging.
Open HTTP API
The Open HTTP API turns BUSY Bar into a network-controlled device — drive timers and statuses, render graphics on both displays, play audio, manage onboard files, and stream device state over WebSocket.
