Virtual Cockpit for Android

Marine Barometer

A traditional-looking barometer and marine instrument suite built around the pressure sensor already in many Android phones and tablets.

What it does

Marine Barometer combines a sea-level-corrected barometer with an aircraft-style altimeter, pressure trend graph and logger, local/UTC analog clock, and a traditional tide clock. The right side of the display changes instruments while the barometer remains visible.

BarometerLive pressure, units and reference needle AltimeterQNH, QFE, QNE and Linked/Unlinked operation Pressure Trend12-hour graph and low-duty background logging ClockAnalog local or UTC display Tide ClockTraditional tide phase for a location you choose CalibrationCorrect the phone pressure sensor from a known reference

Current version: 1.9.0 beta

Released August 22, 2026. Version 1.9.0 adds the Tide Clock to the existing Barometer, Altimeter, Pressure Trend and Clock instruments. It also includes the adaptive background sampling and reliability work developed through the 1.8.x series.

Download and install Getting started

Designed as an instrument, not a web service

Normal barometer, altimeter, clock, trend and tide-clock operation does not depend on a continuous internet connection. The app is intended to remain useful at home, aboard a boat, in an RV, at a campsite or while travelling.

Hardware requirement: the Android device must have a built-in barometric pressure sensor for barometer and altimeter operation.