Time, focus, sound, intention

The Operating Systemfor a Quieter Mind.

A local-first digital sanctuary unifying time, focus, sound, and intention.

Where modern productivity tools inflict distraction, Biofrost cultivates stillness. Bring your calendar, world clocks, stopwatch, alarms, calculator, planner, and generative soundscapes into one private place—running on your machine and designed to restore the lost art of deep focus.

● Private by design. No tracking.

TIME / 07:24:18
FOCUS / IN FLOW
SOUND / QUIET
A little more room to think
Make room for focus
It is not that we have a short time to live, but that we waste a lot of it.
— Seneca, De Brevitate Vitae

You do not need more hours within your day; you simply need fewer open loops. Biofrost replaces dopamine hooks, invasive notifications, and cloud tracking with pure mathematical tranquility and timeless aesthetic restraint.

A quieter workspace can change the shape of a day. Keep the useful things close, and let the rest fall away.

Seven instruments of serenity

One clear place for the shape of your day.

A small set of thoughtful tools. Each one made to keep your attention with what matters.

01 / CALENDAR

The Living Calendar

Time envisioned as space, not a prison.

Explore the instrument

Glide between month, week, and day vistas with natural drag-to-schedule blocking that treats your attention as finite and sacred. Native holiday awareness, recurring rhythm loops, and instantaneous .ics import and export make your schedule an intentional map of life rather than an index of emergencies.

02 / TIME

World Time & Flow Timers

Quiet precision across every meridian.

Explore the instrument

Minimalist analog sweeps and crystalline digital readouts keep company with distant timezones without cognitive clutter. Custom concurrent countdown timers and an integrated Pomodoro engine with procedural chimes help you track rhythm across continents.

03 / MEASURE

The Precision Stopwatch

A truthful ledger of human effort.

Explore the instrument

Made for athletes, engineers, and craftspeople who measure reality to the millisecond. Capture split intervals, see fastest and slowest deltas at a glance, and export clean CSV logs with one keystroke. Session state survives browser refreshes.

04 / AWAKEN

Harmonic Synthesized Alarms

Waking without acoustic violence.

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Mathematical Web Audio oscillators are sculpted dynamically in your browser. Twenty-four-second exponential fade-ins across four algorithmic tones—Cosmic Bell, Digital Chime, Gentle Pulse, and Sonar Ping—make mornings a gradual invitation into wakefulness.

05 / THINK

Tactile Scientific Calculator

Pure mathematics, stripped of distraction.

Explore the instrument

An isolated, sandboxed arithmetic engine with zero eval() shortcuts and complete cryptographic safety. Switch between Degree and Radian trigonometry, use dedicated memory registers, and inspect a full line-by-line calculation tape with tactile keyboard acceleration.

06 / INTEND

Intentional To-Do & Day Planner

From cognitive overwhelm to finished craft.

Explore the instrument

Move between a focused task list, agile Kanban flow board, and tactile monthly checkbox matrix. Natural-language quick-add decodes dates and priorities, while a private local Analyzer reveals workload heatmaps and completion trajectories without exposing your data.

07 / LISTEN

Audio Sanctuary

Generative acoustics calibrated for flow.

Explore the instrument

Enter a generative sonic retreat synthesized live with the Web Audio API, never repetitive looped files. Modulate pink, brown, and white noise alongside stereophonic binaural beats, falling raindrops, ocean swells, and forest breezes.

Plans for every pace

Start with the essentials. Add more when you need it.

Core planning tools stay close. Paid plans add deeper analysis, enhanced AI, and an ad-free workspace.

Essential

Free

Basic tools for keeping your day organized.

$0forever
  • Basic task management and to-do lists
  • Calendar, clock, stopwatch, alarm, and scientific calculator
  • Basic AI assistant for scheduling and customization
  • Basic functionality and customization
  • Workspace stays on this device; no cloud database saving
  • Ad-supported plan when an ad provider is configured
  • No advanced AI task analyzer
Open Biofrost

Ultra

Full Rime

Everything in Pro, with a more capable AI assistant and premium voice features.

Monthly$5.99
3 months$14.99
6 months$29.99
12 months$59.99
  • Everything included in Pro
  • Automatic cloud saving for your full workspace
  • Advanced AI chatbot integrated into Biofrost
  • Higher AI usage limits and personalized productivity insights
  • Advanced AI task analysis
  • Premium voice-assistant experience
  • Priority access to new premium features where available
Explore Ultra

Prices are in USD. PayPal checkout and subscription activation will be connected separately; opening a plan in the app does not take payment.

Designed around your attention

Your mind is yours. Your tools should know that.

Private by default, quiet by design, and ready to move at the speed of thought.

Your computer is your castle.

Biofrost works offline. Essential keeps your workspace on this device and never uploads it to the cloud. Verified Pro and Ultra accounts automatically sync their full workspace to a private account, with access enforced by Supabase Row Level Security. Email and username are retained for account access; Rime conversations and workspace content are included in the paid account's private cloud backup.

Thought-speed navigation.

Summon the universal command palette with Ctrl/Cmd + K, engage Do Not Disturb with Ctrl/Cmd + D, or glide across pages with smooth wheel delegation and tactile keyboard scrolling. Every shortcut is remappable, so your hands never need to leave the home row.

Intelligence that respects your silence.

Rime operates deterministically on-device, without an internet connection—scheduling appointments, managing tasks, and ringing alarms with instantaneous local velocity. With an optional private Gemini key, it can also deconstruct conversations, reorder priorities, and offer thoughtful coaching. Your key stays on your local server; your thoughts never become training fodder for the cloud.

Biofrost / Themes

Fifteen worlds for a quieter kind of focus.

Fifteen atmospheres shape the light around your work. Explore five featured worlds through real Biofrost screens, then carry the one that feels right into your day.

Scroll to move between worlds
The first light of morning
01 / 15 — HIMALAYA DAWN

Himalaya Dawn

Peach light settles over distant peaks. Soft glass and a rose-gold horizon bring a little warmth to the start of your day.

Warm sky / gentle beginning
Biofrost world clocks in the Himalaya Dawn theme
Made for unhurried work
02 / 15 — ATELIER

Atelier

Paper grain, ink-dark edges, and linen warmth turn your workspace into a calm, tactile studio.

Paper / ink / intention
Biofrost world clocks in the Atelier theme
A little space after dark
03 / 15 — GALAXY

Galaxy

Violet nebulae, a midnight horizon, and scattered stars set a quieter scene for deep-focus sessions.

Deep space / long focus
Biofrost calculator in the Galaxy theme
Bright, clean, and clear
04 / 15 — FROSTLINE

Frostline

Glacial blue light and distant snowy peaks bring a crisp, open feeling to your everyday tools.

Cool light / clear head
Biofrost calculator in the Frostline theme
Let the day soften
05 / 15 — DUNE DUSK

Dune Dusk

Sunset copper slips into deep rose shadows, making room for an easy end to a full day.

Last light / slow down
Biofrost stopwatch in the Dune Dusk theme
5 featured / 15 total

Ten more worlds are waiting.

Five distinct atmospheres, with ten more in the full Biofrost collection. Find your favorite in the app.

Explore all 15 ↗
Rime / unobtrusive intelligence

An artificial intelligence that respects your silence.

Built directly into the core shell, Rime operates deterministically on-device without an internet connection—scheduling appointments, managing tasks, and ringing alarms with instantaneous local velocity. Add an optional private Gemini key for conversational deconstruction, task priority re-ranking, and thoughtful coaching. Your key remains securely on your local server.

RIME / LOCAL COREON DEVICE
“Make space for the proposal before lunch.”
10:30 — Focus on proposal
12:15 — Break for lunch
Ask Rime to make a little room…
“It is not that we have a short time to live, but that we waste a lot of it.”
— Seneca, De Brevitate Vitae

“A gentle plan you follow beats a perfect plan you abandon.”

Step out of the storm of constant digital noise and build your days upon a foundation of tranquility. Biofrost is running on your machine right now—clean, calm, and waiting for your first step.

Enter Biofrost