Observed arrival · 2026-09-08
Low Pass, a pilot’s altimeter for mountain roads
A barometer-first driving altimeter that displays altitude, climb rate, grade, and terrain progress on an iPhone, CarPlay Dashboard, and Apple Watch.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The proposed workflow prioritizes the iPhone’s pressure sensor, uses GPS as an anchor or fallback, and surfaces confidence through the instrument panel. Its example route runs from Aspen to Independence Pass over 19.8 miles and 4,180 feet of climbing, with the summit marked at 12,095 feet. Trips are intended to remain on the phone and sync through the user’s iCloud, with GPX export and no Low Pass account or server.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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