Companion / Travel

Go with
confidence.

Focused, offline-first mobile experiences that turn the details of a journey into something calm, clear, and close at hand.

TRAVEL / 01

Journeys

Companions for
where you’re going.

The principle

The trip is complex.
The companion shouldn’t be.

Confirmations, places, schedules, maps, and notes—considered as one secure mobile experience for one specific journey.

Case study / Evidence-based memory

Turning Location Data Into a Travel Memoir

Washington, D.C. / July 2–5, 2026

How a Google Maps Timeline export, photographs, and public records turned one Washington weekend into an evidence-based memoir.

Start with the raw data
{
  "position": {
    "LatLng": "38.8902472°, -77.036656°",
    "accuracyMeters": 3,
    "altitudeMeters": -42.224822998046875,
    "source": "GPS",
    "timestamp": "2026-07-04T17:54:05.000-04:00",
    "speedMetersPerSecond": 0.4705972969532013
  }
}
One raw position record exported from Google Maps Timeline. Private home and work locations are omitted; the negative altitude is sensor noise.

The project began with Google Maps Timeline: a phone-exported Timeline.json file containing raw GPS positions and timestamps.

01 / Challenge

Make telemetry feel like memory.

Google Maps Timeline knew where we were, not why it mattered. The challenge was adding context without turning correlation into certainty.

02 / Approach

Build the story from evidence.

  1. 01

    Google Maps Timeline set the chronology

    The phone export established where and when we moved.

  2. 02

    Raw signals exposed the detail

    Coordinates, timestamps, accuracy, speed, and source came from Timeline.json.

  3. 03

    Public records added context

    The event schedule matched the time and location.

  4. 04

    Photos tested the inference

    Photos confirmed the sequence; missing EXIF remained explicit.

03 / Google Maps Timeline data

The export mixes observation with inference.

The phone-exported Google Maps Timeline file contains several evidence layers. Each was treated according to what it could actually support.

Position records
Coordinates, timestamps, reported accuracy, source, and speed describe where the device was observed—not why a person was there.
Semantic segments
Visits, travel segments, and activity candidates may be inferred by Google, sometimes with probabilities. They are model outputs, not ground truth.
Privacy boundary
Only trip-relevant records were used. Home, work, unrelated dates, and the full Timeline export remain private.

From signal to story

One GPS point becomes a remembered evening.

  1. 01 / Signal GPS near the monument at 5:54 PM
  2. 02 / Correlation Schedule matches Salute to America
  3. 03 / Validation Photos confirm aircraft and fireworks
  4. 04 / Narrative Evidence becomes the memoir

04 / Outcome / Prompt + memoir excerpt

The weekend the sky belonged to America.

Sample GPT prompt
Use my exported Google Maps Timeline data from Washington, D.C., to write a vivid first-person travel memoir of about 500 words. Correlate the exact coordinates and timestamps with public events happening in those locations, use my photos as supporting evidence, distinguish confirmed facts from informed inference, and add enough color and flair that I could tell the story to friends.

This memoir sample was AI-generated with GPT in minutes. Human review then checked the draft against Google Maps Timeline, the photographs, and public event records.

By late afternoon, we were inside the Salute to America grounds as Air Force One and its escorts crossed the Washington Monument. Then the sky darkened and a storm scattered the Mall. For a while, we thought the night was over. When the gates reopened, we went back. Near midnight, fireworks broke across the horizon in red and gold. We had come to Washington expecting history; for one extraordinary evening, it felt as though we were standing inside it.

Sources: Google Maps Timeline, photographs, and public event records

05 / Product insight

A private memory system could go further.

The same method could combine GPS, photos, reservations, tickets, and notes into a diary, map, photo essay, book, or searchable archive.

06 / Tools used

A small, complementary stack.

  • Google Maps Timeline export
  • Timeline.json + JSON analysis
  • EXIF + photography
  • Public event research
  • GPT narrative generation + human review

07 / Key takeaway

Personal data becomes meaningful when it moves from a record of where you were to a story about what was happening around you.