Aestu - Liquid Focus Timer

Stop counting seconds. Start feeling time.

Aestu is not just a timer. It's a calm, science-backed productivity tool to combat Time Blindness and deadline anxiety — designed specifically for ADHD, neurodivergent, autistic, and dyslexic minds.

Forget frantically scrolling numbers. Aestu transforms time into a living liquid that breathes, pulses, and speaks in color.

WHY AESTU IS DIFFERENT

Liquid Timer Engine
Time flows — it doesn't tick. One glance tells you exactly where you stand. No mental math, no number decoding. Color does all the work: Indigo (Focus), Red (Closing), Teal (Pause), Orange (Overtime).

Time Blindness Anchor
ADHD brains struggle with "when will this end?" Aestu shows your exact finish time — "Done at 2:35 PM" — so your brain relaxes into the task instead of monitoring the clock.

Overtime: Zero-Shame Design
When the timer hits zero, Aestu doesn't stop. It enters Overtime. The liquid rises back up, you finish the task, and you see how much you overran. No alarm. No failure. Just awareness.

Smart Cooldown Pauses
A gentle heartbeat haptic calls you back after 5 minutes of pause. After 15 minutes, Aestu kindly saves your session automatically — no scolding, just support. Designed around ADHD rejection sensitivity.

90/20 Ultradian Rhythm Mode
Science-backed 90-minute deep focus + 20-minute recovery cycles. The timer locks during focus to prevent impulsive resets — an ADHD-specific safeguard built into the design.

Energy Level Tracker
After each session: Energized, Neutral, or Drained? Over weeks, you'll discover your peak focus windows and protect your cognitive energy.

Brown Noise Generator
Procedural brown noise generated live via the audio engine — no files, no streaming needed. Fades in when you start, fades out when you finish. Masks distractions and quiets mental chatter.

Live Activities & Dynamic Island
Your liquid timer lives on the Lock Screen and in the Dynamic Island. No unlock needed to check your progress.

Full Apple Watch Support
Set time with the Digital Crown, see complications on your watch face, use interactive Smart Stack widgets, and receive haptic alerts even with the screen off — the timer keeps running in the background.

iCloud Sync & Calendar Integration
Sessions sync automatically across iPhone, iPad, Mac, and Apple Watch via SwiftData + CloudKit. Completed sessions export to Apple Calendar with timestamps — perfect for time-tracking and therapy sessions.

Spatial Focus Engine (iPhone Pro)
Use your iPhone's LiDAR to scan your desk and get a clutter score. Research links workspace entropy to reduced cognitive focus. Clean desk, clear mind.

Designed for Every Mind
Full VoiceOver support · Reduce Motion compliance · Dynamic Type · High-contrast UI · RSD-aware language (zero "you failed" messages — ever).

— FREE vs PRO —
Free: Core timer, Overtime, Time Blindness Anchor, Brown Noise, Energy Tracker
Pro: iCloud Sync, Calendar Export, Unlimited History, Ultradian Mode

— BUILT FOR —
· ADHD and ADD
· Autism Spectrum
· Dyslexia and Learning Differences
· Executive Function challenges
· Deep Work practitioners
· Students and professionals who struggle with time

Requires iOS 17+ · macOS 14 Sonoma+ · watchOS 10+