BioTime, rhythm, sleep, and calm timing

Meet your rhythm with more grace.

BioClock is a premium-feeling Android app for everyday circadian awareness. It shows BioTime beside standard time, estimates rhythm alignment and sleep timing, gives gentle reminders and alarms, and keeps your wellbeing data local-first and exportable.

Private and useful even offline
BioTime, CRS, mood, phase, and trends
Health Connect, sensors, and CRS-ready architecture
Calm design with multilingual support
Live preview
BioClock dashboard
v1.0.74
Standard time
What the clock says now
07:30
BioTime
A rhythm-aware estimate of your internal clock
06:54
CRS
78

Alignment, regularity, light, activity, and timing in one readable score.

Practice readiness
Ready now

Shows state confidence, light confidence, session length, next window, and recovery-sensitive guidance.

Suggested bedtime
22:35

History-based and calm, with an optional bedtime reminder.

Wake window
06:50-07:10

Standard-time or BioTime-aware alarms with safety rules.

The concept

A rhythm companion, not a diagnostic label.

BioClock helps people reflect on timing, sleep regularity, drift, light, activity, and internal rhythm. It is designed to be informative, observational, and supportive. It does not pretend to diagnose or replace care. Instead, it makes rhythm more visible, more understandable, and easier to act on calmly.

What it does well

  • Live BioTime beside standard time.
  • CRS, circadian phase, chronotype, mood estimate, sleep pressure, and predicted sleep window.
  • 7-day and 30-day trends for drift, regularity, mood, light, and activity timing.
  • Smart alarms, bedtime suggestions, widgets, and lock-screen visibility.
  • Local export plus user-facing and clinician-support summaries.

Why it feels different

  • Local-first storage and offline usefulness.
  • Non-clinical language and calm visual tone.
  • Source-agnostic architecture for manual input, Health Connect, sensors, and CRS sync.
  • Privacy-conscious export instead of forced cloud dependence.
  • Beautiful design meant for ordinary daily use.
Feature highlights

Built to be useful morning, night, and in between.

Rhythm insight

Understand BioTime drift, rhythm stability, phase changes, chronotype tendencies, and how regular recent days have been.

Sleep support

Get predicted sleep windows, suggested bedtime, calm reminders, and safer BioTime-aware alarm behavior.

Source flexibility

Combine manual input, phone motion, ambient light, Health Connect, and optional CRS platform sync in one normalized model.

Current release

Download the latest BioClock build.

This page reads update.json from the same folder as the APK, so version details and the download target can stay in sync with whatever you publish in your update directory.

Install

Simple signed APK install, ready for repeat updates.

BioClock is published as a signed Android APK. If Android asks, allow installs for the browser or updater you are using. Future builds signed with the same key can update in place.

Download the APK

Use the download button on this page. The page will point at the latest file from update.json when available.

Allow Android to install it

Some phones require a one-time "Install unknown apps" permission for your browser or updater.

Open and install BioClock

If you ever switch signing keys, uninstall the older incompatible build first before installing the new one.

Ready to try it?

Download BioClock and bring more rhythm into the day.

A calmer, more elegant way to explore BioTime, sleep timing, daily rhythm, and private wellbeing support.