100% Offline • Zero Tracking

Never Forget an Important Date Again.

Track medicines, warranties, subscriptions, documents, receipts, borrowed items and everything that matters — all privately on your device.

Passport Renewal

Expiring in 6 months

Vitamin C Refill

16 days left

Sony WH-1000XM4

Warranty Expiry

10:42
When Logo When
Timeline List July 2026

Vitamin C Capsule

Expiry: Jul 15, 2026

16 days left

Paracetamol Syrup

Expiry: Sep 20, 2026

83 days left

Why "When"?

Spreadsheets are tedious. Generic note apps lose track. When brings structure, privacy, and timing directly into your pocket.

Without When

  • Scattered Notes: Writing expiry dates down in random notepad files or sticky notes that disappear.
  • Forgotten Warranties: Misplacing receipts or neglecting purchase dates, losing out on $100s in hardware repair.
  • Lost Receipts: Storing receipts in shoeboxes that fade away and get ruined by water or time.
  • Missed Renewals: Credit cards getting charged automatically for subscription services you meant to cancel.
  • Late Reminders: Passport expiring weeks before an international trip, inducing unnecessary stress and costs.

With When

  • One Intelligent Timeline: Clean chronological flow showing exactly what requires action next.
  • Smart Pre-Reminders: Configurable alerts that ping you days or weeks before ex-dates.
  • Offline OCR & Barcodes: Scan papers, packaging, and barcodes with instant offline text extraction.
  • Offline Voice Add: Add objects on-the-go by speaking naturally ("Add insurance ending next Tuesday").
  • Privacy First Architecture: Absolute safety. No tracking, cloud syncing, accounts, or analytics.
Comprehensive Vault

Packed with Intelligent Tools

Every tool is designed to work securely offline, with Material Design 3 guidelines providing smooth interaction.

Unified Timeline

See all expiry dates, warranties, documents, and notifications arranged chronologically in one smooth feed.

Smart Add

Create timeline cards quickly with offline voice transcripts, fast camera document scanner OCR, or barcodes.

Categorized Vault

Organize items with curated templates for medicines, receipts, warranties, subscription trials, and passports.

Lent & Borrowed

Track money, books, cameras, and tools borrowed from or lent to friends. Get quick prompts when due dates arrive.

Smart Reminders

Configure notification thresholds. Get push alerts weeks or hours before critical dates entirely locally.

Android Widgets

Access timeline indicators on your home screen. Voice-add or review urgent alerts without launching the app.

Offline Engine

100% of the code execution, search logic, database querying, and OCR parsing takes place locally on your device.

No Tracking

We demand no accounts, no social log-ins, no online telemetry.

Interactive Tour

Experience the Interface

Explore the key screens of When. Click any category below to inspect the actual interface and offline capabilities.

Timeline Screen Vaults Screen Borrowed Screen Notifications Screen Smart Add Screen Settings Screen

Simple 3-Step Process

From capture to timeline notification, When takes care of the dates so you don't have to.

1

Add Your Dates

Input dates quickly with voice capture, barcode lookups, camera document scanner, or clean forms.

2

Organize Inside Timeline

When categorizes your records in folders, counts days remaining, and locks them behind offline encryption.

3

Get Prompt Notifications

Receive pre-notifications on time, giving you window thresholds to renew, refill, or cancel securely.

Privacy Standard

Your Data Never Leaves Your Device.

When is built on a zero-trust model. We believe your private timeline is yours alone. No accounts, no advertising, and no tracking. All computations take place locally.

Encrypted Local Database

Records are stored using AES-256 SQLCipher local database system, ensuring your data is locked even if your device is compromised.

Offline Architecture

No cloud required. The application works completely without cell signals or active internet connections.

No Telemetry

We never run analytics scripts, background trackers, google crash reporting or banners.

Encrypted Backups

Export encrypted backups directly to physical folders or your own private cloud storage (e.g. Proton Drive).

Frequently Asked Questions

Everything you need to know about security, backup, and architecture.

Get When for Android

When is officially live! Download the app now and start tracking what matters.

Download on Google Play

Get the official, privacy-first personal timeline app directly from the Google Play Store.