Download Mile-1 App V. 6.6
Apple AppStore - Google Play
Mile-1 App V. 6.6
by OnStarboard LLC
Know your mile marker location! Use Mile-1 to help emergency personnel or roadside assistance locate you faster. Mile-1 provides you with the most comprehensive and accurate highway milepost locato - More Info...

Available Since: 2021-04-25
Developer: OnStarboard LLC
Seller: OnStarboard LLC
Price: 0 USD
Current version: 6.6
Last Updated: 2026-10-21

Ratings: 4.71 out of 5 stars.
Based on 1339 reviews. (Rate/Review)
Genre: Navigation
Filesize: 123.53MB
IOS Bundle ID: com.onStarboard.Mile1
Age Rating: 4+
Languages: EN

Videos: Mile-1 App Videos

Know your mile marker location! Use Mile-1 to help emergency personnel or roadside assistance locate you faster.

Mile-1 provides you with the most comprehensive and accurate highway milepost locator service ever built. Easy to use day or night, quickly find and share your real-time mile marker. Nearly every highway with markers in the U.S. is included, along with a growing list of river miles and railroad mileposts. Even if you lose your data connection, Mile-1 will still show your milepost.

"Hey Siri, Get my milepost in Mile-1." Just ask Siri to get your current milepost. Check out our CarPlay app and CarPlay widgets too. Real-time mile marker locations right on your dashboard.

Need directions or distance? Tap any milepost. The navigation button will use Maps to show you the fastest route to get there. Perfect for towing and roadside assistance.

Click the share button to send your current location via messages, email, or your favorite app.

Closures, construction, and incidents are often reported using mileposts as a reference. Mile markers function like an address on the highway. Quickly and easily search for these locations. It's the perfect companion for incident reporting and maintenance.

Mile-1 Pro includes:
Unlimited search and navigation
Unlimited custom marker points
Mile marker point manager - Save money by reducing location uncertainty and field documentation
Mile marker map maker - Create custom maps with mile marker references. It's great for crash reporting on your socials or construction maps.
Auto-tag and markup photos with accurate mile markers and timestamps
Convert Latitude/Longitude to mile marker location

These are just some sample headlines we see every day, but it's not so easy to locate exactly where these are. Mile-1 helps save the day!

AZDOT, "State Troopers and emergency crews use mile markers to locate stranded drivers or those involved in crashes...emergency crews will be able to find you faster."

KEZI, "Evacuation levels reduced for homes near Milepost 97 fire."

NewsChannel20, "Illinois State Troopers and first responders were called to a crash on I-57 northbound near milepost 241 Wednesday afternoon."

KqenNewsRadio, "I-5 Milepost 114 fire burns Tuesday night."

National Park Service, "Detour implemented from Milepost 115 to 135 starting January 25, 2021."

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