One Incense
An AI body double for work and study.
Set one task and work alongside the Preceptor, an AI companion that responds to session signals. Start with a free focus room; the Hall plan adds memory across days. No booking, no stranger, and camera use is optional.
Free account required · 5 companion lines per day on the free plan
Not customisable · It has a gaze · Camera never leaves this device · Default focus session: 25 min
Find the focus setup that fits today
Start with a timer, settle into a study room, or compare body doubling apps before choosing a companion.
Free focus timer
Choose a session length and work through one task. Explore Pomodoro and visual timers without booking a partner.
Private online study room
Use a free timer and optional ambience without an account. This private room has no live classmates or responsive AI. Page in English.
Compare body doubling apps
Compare human partners, hosted groups and AI companions by scheduling, camera requirements and cost. Guide in English.
A meditation hall, not a to-do list
Use a timer with an AI companion. The signed-in Hall plan adds a private note across sessions; the public timer and study room need no account.
A companion who remembers
The Hall companion can carry a private note from one session to the next. It uses your stated task and session signals to suggest a next step. The note is not a verified assessment of your habits or completed work.
A reminder when signals suggest drift
Tab switches, keyboard activity and optional camera presence can suggest drift. After the grace period, a wooden sound can prompt a check-in. These signals cannot prove what you were doing or whether you finished.
Private by architecture
Face detection runs locally — no frame is ever uploaded, and we cut the detector vendor's telemetry out of the build. What does travel: your typed intent and session stats go through OpenRouter to the configured model provider for the companion's lines, and browser speech recognition (if you use it) is your browser vendor's service. Both are labelled where they happen.
Two companions, one standard
The Preceptor holds the hall — dry, exacting, keisaku in hand. Suanni, ninth son of the dragon, keeps the burner warm — he treats a bad day as weather, not character. You can't redesign them. The thing watching has to be somebody else.
Paper by day, ink-green by night
The room follows your hours: xuan paper and seal-red in daylight, ink-green and candlelight after dark. Pine rain and the hall use compact recordings that load once, then repeat from memory; a local synthesized fallback keeps the room usable offline.
A debrief based on session signals
At the end of a signed-in session, the companion can summarize the recorded signals and suggest a next action. Review the summary yourself: presence is not proof of completed work or quality.
Pricing
The room is free. The companion is the plan.
The Room
Sit as long as you like
- Paper by day, ink-green by night
- Pine rain, the hall, stillness
- Sittings with drift detection
- 5 companion lines each day
The Hall
The companion speaks — and remembers
- All-day voice from the Preceptor and Suanni
- A memory that carries across days
- A session summary and suggested next step
- Camera presence, on-device only
Questions people actually ask
The honest answers, including the ones with trade-offs.
From the hall
Field notes on focus, body doubling, and getting yourself to start.
Brown Noise vs White Noise: Compare the Sound
Compare brown noise vs white noise by frequency balance and sound. Try both at a comfortable volume, check evidence limits and choose what suits your task.
One IncenseMindfulness at Work: Five Small Practices to Try
Try mindfulness at work with a brief pause, an attention check and a clear next action. Fit it around real tasks without treating it as a productivity cure.
One IncenseThe Library Effect: Why You Work Better Around Strangers
You already know you concentrate better in a library. The reason is not quiet, and understanding what it actually is lets you rebuild it at home.
One IncenseThe hall is open.
Say what you'll work on. Start one focus interval. Review what you completed.