Brookt: 13 Days, One Builder

One person. Apple Watch Ultra and iPhone. First commit to TestFlight in 11 days.

122 Commits. 10,400 Lines. 13 Days.

By the numbers

27 commits on the final day alone

45 core tests, all passing

332 localised strings from day one

69,252 USGS summit names bundled

Zero Servers. Zero Accounts. Zero SDKs.

Privacy first

Every hike, heart rate, photo, and film stays on your device. Nothing is uploaded. Ever.

A Real Workout on Apple Watch

On the wrist

NOW: vert gained, climb rate, heart rate zone

EFFORT: EASY → STEADY → PUSHING → HARD

MARK: one press stamps a trail blaze and altitude

Action button starts and marks. Compass bezel around the edge.

Forgot to Stop? Brookt Noticed.

Smart recovery

Detects driving from speed and barometric rate, so it works even when GPS fails in canyons. Offers to trim back to where you actually stopped walking. Lossless. Re-saves to Apple Health.

Your Hike Becomes a Story

After the hike

Drawn as a winding brook with every mark and photo

Effort zones from your real heart, never age formulas

Peaks auto-named from 69K+ USGS summits

Offline topo maps, splits, report card, CSV export

Three Cuts. Made on Your Phone.

Finished film

Your Route as a 3D Fly-Over

Terrain fly-over

USGS and NASA elevation tiles become a 3D mesh. Draw a line with your finger and the camera flies it, rising before ridges, finishing on the peak.

Vintage American Outdoors

The look

Sun Gold for heart rate

Ranger Orange for MARK

Trail Blue for route

Screen-printed badge: a heart-shaped sun behind snowy peaks with a brook

Nothing Estimated Shown as Measured

Honesty rules

No medical language. No analytics. No tracking. Ski and Board are written but greyed until tested on real snow.

Build in public

First commit 22 September 2026. On TestFlight 2 October 2026. Built by one person, in public, in 13 days.

Free During Beta. Join TestFlight.

Join the beta

Built in public. No accounts, no servers. Just a hike recorder that cares about the climb.

Join the TestFlight