Skip to content
Lyralog

Early access on iOS & Android

The Privacy-First AI Life Logger.

Log your day in plain words, extract metrics instantly, and ask questions about your life. Your entries stay yours: never used for training, never visible to anyone else.

  • Zero-data-retention AI
  • Per-user row-level security
  • Face ID & fingerprint lock
  • Works offline
Ask your log Only your entries

How did I sleep on days I went running?

On the 4 days you logged a run this month you slept 7.4 h on average, versus 6.6 h on the other days.Sep 3Sep 9Sep 16Sep 22

What was my cholesterol last year?

I don't have any logged entries regarding that.

Answers come only from what you've logged. No outside knowledge, no guessing. Illustrative example.

See it work

Plain words in. Structured data out.

Write the way you'd text a friend. Lyralog turns it into a tracker, typed metrics and tags. Try it below.

Try an example

Extracted

Sleep LogHealth

Metrics (3)

  • sleep_hours6.5
  • mood_score7
  • coffee_cups2
  • sleep
  • caffeine
  • mood

This demo runs a simplified parser in your browser, so nothing you type leaves this page. The app uses a zero-data-retention LLM that handles any kind of entry, not just these patterns.

  1. 01

    Log it

    Type or speak. It saves on your phone instantly, even offline.

  2. 02

    We structure it

    Metrics, tags and reminders are extracted and stored in your isolated space.

  3. 03

    Ask & chart

    Get answers grounded only in your entries, and native charts on demand.

Built private from the ground up

Everything a life log needs. Nothing it shouldn't keep.

Zero-Data Retention

Extraction and Q&A run on commercial LLM APIs under a Zero Data Retention agreement, with response storage switched off. Your entries are never kept by the provider or used for training. On your phone, Lyralog locks behind Face ID, Touch ID or fingerprint, matched by the OS in secure hardware.

  • ZDR enterprise contract
  • Hardware-backed biometric lock
  • Session in Keychain / Keystore
Learn more

On-The-Fly Custom Trackers

Log a deadlift, a migraine or a furnace filter swap. Lyralog infers the tracker and pulls out typed metrics with no fixed schema, reusing names you already have so charts stay consistent. Recurring chores get a next-due date.

  • No forms or setup
  • Numbers, text & yes/no values
  • Automatic reminders
Learn more

Offline-First & Tenant Isolation

Entries save instantly to an on-device expo-sqlite queue and sync when you are back online. Client-generated IDs make retries safe. On the server, every query runs under Postgres row-level security tied to your Supabase user ID.

  • Zero-latency local save
  • Idempotent background sync
  • Supabase RLS per user
Learn more

Native Visual Charts

Ask for "sleep vs. mood this month". The backend turns it into a parameterized query run under your tenant scope, and the app draws it with native chart components. No webviews, and no generated code ever runs on your phone.

  • Plain-language chart requests
  • Server-side, RLS-scoped queries
  • Native rendering
Learn more

Early access

Start logging today.

Join the beta on TestFlight or Google Play internal testing. Builds ship from every release, straight from our CI pipeline.

Coming soonTestFlightComing soonGoogle Play