Carry
No screen, no app running, no phone in the loop. An accelerometer wakes the GNSS when you move and lets it sleep when you stop. You will forget it’s there. That’s the point.
Waymark One · ambient GNSS logger
The atlas you fill in by living.
A screenless tracker that rides in your pocket for weeks on a charge, keeping a quiet record of every street you cross. It hands that record to your iPhone over Bluetooth — and to nobody else.
850 mAh — weeks of carry
u‑blox M10 multi‑constellation GNSS
0 bytes to the cloud
Field use
Carry. Sync. Reveal.
Sync
Hold the button. The tracker wakes its radio for three minutes, your iPhone pulls the log over encrypted Bluetooth LE, verifies every record, then wipes the device clean.
Reveal
New streets burn through the fog. Countries, states and cities scratch off. Badges engrave themselves. Your atlas grows exactly as fast as your life does.
The app
Scratch the world off.
The Waymark app keeps two maps. A fog‑of‑war road map, where streets stay dark until you’ve actually walked them. And a scratch map, where whole countries, states and cities take on colour the day you first cross them.
- FogCoverage is measured in metres of street, not check‑ins.
- TimelineEvery day you carried it, searchable. Private days stay private.
- BackfillYour camera roll’s geotags seed the map back to your first photo. Nothing is uploaded.
- GPXImport old tracks. Export everything, any time — GPX, CSV or JSON.
Unsurveyed territory — run your pointer across the chart
Field comparison
One walk, recorded three ways.
Detail density is the whole game — a pen plot against an impressionist painting. Below, the same afternoon as three instruments would keep it.
01
Phone, low power
Significant-location wakeups, roughly every 500 m. Free, and cell-tower coarse: it can name the cities you touched. It cannot draw a street.
≈0%/day · city-grade blobs
02
Phone, continuous GPS
How fog‑of‑war apps do it. Street detail at 5–15% battery an hour — the apps’ own guides say 10–15% at default settings — so a day of exploring costs most of a charge, and dense city canyons cost more. Then the smaller taxes: iOS re‑asks about the Always Allow permission every few weeks. There’s a record button you have to remember to press. And the map gets holes wherever the system put the app to sleep.
5–15%/hr recording · Always Allow
03
Waymark One
Per fix, the same GNSS accuracy as your phone. The win is duty cycle: motion‑gated and ambient, it samples all day, every day, with nothing to press and nothing to remember — even when the phone is dead, at the hostel, or abroad without data.
0% phone · weeks per charge
Fog‑of‑war apps left unnamed out of courtesy. Their gentler battery figures assume airplane mode, a locked screen and offline maps — a phone impersonating a dedicated logger — and their own FAQs suggest carrying one and importing its files. So we built the logger.
Achievements
Sixty‑odd reasons to take the long way home.
Each badge is engraved for a particular kind of journey — a ferry crossed, a border walked over, a dawn met on foot. No streaks, no pop‑ups, no guilt. They simply wait.
Dawn Patrol · Ferry Wake · Border Crossing · Night Owl · Old City Gate · and some we’d rather you find on foot
Terms of carriage
Nobody’s business.
-
I.
Your history lives in one SQLite file on your iPhone. We never see it. We couldn’t — there is no server on the other end.
-
II.
No account, no sign‑in. The app has never asked anyone their name.
-
III.
Private zones blur the places you’d rather not draw. Exports strip them before the file even exists.
-
IV.
The tracker’s radio stays silent until you press the button, and pairing demands a factory‑unique PIN printed only with your unit.
The waitlist form below is the only thing on this page that asks for anything, and it only wants an email.
Instrument
The plate.
| Positioning | u‑blox SAM‑M10Q multi‑constellation GNSS, integrated chip antenna |
|---|---|
| Processor · radio | Nordic nRF52840 · Bluetooth 5 Low Energy |
| Motion | Bosch BMA400 three‑axis accelerometer · motion‑gated logging |
| Cadence | Adaptive 5 s–90 s by measured speed · high / balanced / saver profiles |
| Battery | 850 mAh LiPo · days of continuous logging, weeks of motion‑gated carry |
| Charging | USB · MAX17043 fuel gauge for a true percentage readout |
| Storage | Onboard flash log (LittleFS) · settings and log survive power loss |
| Security | Encrypted, MITM‑protected pairing · factory‑unique six‑digit PIN |
| Radio discipline | Advertises only during three‑minute sync windows you open |
| Quality gate | Logs 3D fixes only · ≥4 satellites · ≤50 m horizontal accuracy |
| Companion | Waymark for iOS · local SQLite · offline boundary atlas · no cloud |
Figures come from shipping MVP firmware v0.4.0, not a projections deck.
Waitlist
Get one first.
One email when units ship. That’s the entire relationship.
You’re on the chart.
We’ll write once, when it’s time.