Altimeter (Barometer) vs Aachen 72° C Usage & Stats

This altimeter either uses GPS or the built in barometer (available since iPhone 6) to determine your current elevation on earth. While GPS provides the absolute altitude as long as you see the sky it is not very accurate. With the help of the barometer we can calculate the altitude indoors and outdoors with a much higher accuracy. But we need a reference altitude to calibrate the barometer altitude. This calibration will degrade over time as the air pressure changes with the weather. Features: - GPS and barometer based altitude - set a base altitude as starting point and get the altitude difference (e.g for hiking or biking) - calibrate the barometer altitude (connect the current air pressure to your current altitude) - calibrate with the help of GPS, the standard sea level air pressure or to any altitude you want - time difference to the last calibration - warning when it is time to calibrate - switch between metric and imperial units The Apple Watch app: - GPS and barometer based altitude - set a base altitude as starting point and get the altitude difference (e.g for hiking or biking) - switch between metric and imperial units

Apple App Store
Paid
Travel

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Aachen 72° C

The Aachen underground is home to a thousand-year-old treasure - the thermal springs. This is spring water that comes from a depth of thousands of metres and is therefore very hot, up to 72° Celsius. The springs are the reason why Aachen was founded. The App „aachen 72 grad“ makes this "buried" wealth visible in the urban space of Aachen and leads to ten selected places which have a cultural-historical and/or geological connection to the thermal water springs or to the thermal water. Worth knowing, astonishing and curious, but above all invisible and disappeared things are brought to light, conveyed in different depths and can be experienced in a playful way. "aachen 72 grad" is an Augmented Reality Tourist Guide App, which leads you through the city of Aachen and lets you experience many interesting stations. A project of the Citizens' Foundation Lebensraum Aachen Sponsored by NRW Foundation for Nature Conservation, Local History and Cultural Heritage Rhineland Regional Council City of Aachen