Master Clock
Navegación
Sólo para iPhone
USD 2.99 · Diseñada para iPhone. No verificada para macOS.
iPhone
Master Clock is a GPS-disciplined navigation instrument for iPhone,
designed for anyone who needs accurate time and position in the
field — at sea, in the mountains, or anywhere off the beaten track.
ACCURATE TIME
The clock is disciplined by GPS satellite time and cross-checked
against NTP network time, giving you UTC to within a fraction of a
second. The analogue clock face runs at up to 120 Hz for perfectly
smooth second-hand motion.
NAVIGATION INSTRUMENTS
Choose between a full analogue dashboard and a digital readout:
• Compass — true heading from the magnetometer, or course over
ground from GPS. Smooth, high-refresh needle motion.
• Speedometer — speed over ground in knots, km/h, mph or m/s,
with a green band marking your planned speed range.
• Position — latitude and longitude in degrees/minutes or decimal,
with altitude and GPS accuracy.
• Sun times — sunrise and sunset for your current position,
calculated offline from your coordinates.
POSITION LOGGING
Start a logging session and Master Clock records your position,
speed, course and distance made good at your chosen interval.
Sessions run in the background with the screen off, confirmed by
an audio beep. Export your log as a CSV file for analysis,
passage review, or field records.
SPEED ALERTS
Set a planned speed range and Master Clock will alert you — with
a banner and an audio tone — when your speed falls outside it.
Useful for sail trim, tidal planning, or pacing on a long passage.
LIVE ACTIVITY
A lock-screen Live Activity shows your speed, course and position
at a glance while a logging session is active.
NIGHT MODE
A red-on-black night mode preserves your dark adaptation at sea
or under a night sky. Auto mode switches at local sunrise and
sunset for your position.
GPS INTEGRITY MONITORING
Master Clock watches for signs of GPS interference: NTP time
drift, location freeze, and physically impossible position jumps.
It distinguishes the common benign cases — indoors, tunnels,
re-acquisition after a ridge — from genuine anomalies that warrant
a position cross-check.
PRIVACY
Your location data never leaves your device. Log files are
excluded from iCloud backup. No account, no subscription,
no analytics.
Calificaciones y reseñas
- Esta app no ha recibido suficientes calificaciones ni reseñas para mostrar un resumen.
El desarrollador (DANIEL JOHN OWENS) indicó que las prácticas de privacidad de la app pueden incluir el manejo de datos que se describe a continuación. Para obtener más detalles, consulta la política de privacidad del desarrollador .
No se recopilan datos
El desarrollador no recopila ningún dato en esta app.
Accesibilidad
El desarrollador aún no ha indicado cuáles funciones de accesibilidad admite esta app. Obtén detalles
Ficha técnica
- Vendedor
- DANIEL JOHN OWENS
- Tamaño
- 1.1 MB
- Categoría
- Navegación
- Compatibilidad
Requiere iOS 16.2 o posterior.
- iPhone
Requiere iOS 16.2 o posterior. - Mac
Requiere macOS 13.1 o posterior y una Mac con el chip M1 de Apple o posterior. - Apple Vision
Requiere visionOS 1.0 o posterior.
- iPhone
- Ubicación
- Esta app podría utilizar tu ubicación incluso si no está abierta, lo cual podría reducir la duración de la batería.
- Idiomas
- Inglés
- Edad
4+
- 4+
- Copyright
- © 2026, Daniel Owens. All rights Reserved.
