Read with confidence
See altitude, accuracy, signal status, and bearing at a glance.
Field altimeter for iPhone
Know your altitude.
Keep the moment.
Crestline makes altitude easy to read and simple to record. Share only what you choose, with precise coordinates off by default.
Live altitude · accuracy ±8 m
552m
Precise location hidden
Reliable first, memorable second
A clear instrument for the places that matter.
Crestline is designed for quick outdoor reading without turning a focused utility into a social network.
Record the moment
Save a single-location record, add a photo, and return to the details that made the place memorable.
Share by choice
Create a data card or photo card. Precise coordinates stay hidden unless you turn them on.
Built with restraint
Your field data stays yours.
The current reviewed build stores records, photos, settings, and share drafts on your iPhone. Crestline does not use cross-app tracking or transmit precise location, photos, EXIF metadata, altitude records, or raw sensor streams to Crestline servers.