# Mile-1 — Find Your Milepost

> Comprehensive highway milepost locator for U.S. Interstate and state highways. (iPhone/iPad app by OnStarboard LLC.)

- Source: https://appshunter.io/ios/app/mile-1/id1562022453 (this page in markdown: same URL + `.md`)
- Developer: [OnStarboard LLC](https://appshunter.io/developer/1268433928)
- Category: Navigation, Travel
- Price: Free with in-app purchases
- Rating: 4.70/5 from 1,284 App Store ratings · 37 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 156 MB
- Languages: American English
- Released: 2021-04-25
- Data updated: 2026-08-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mile-1/id1562022453/reviews.md

## What is Mile?

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."

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Real-time milepost location
- Offline milepost display
- Share current location
- Navigation to mileposts
- Siri integration
- Search for milepost locations

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Mile-1 Pro Monthly | $5.99 | per month |
| Mile-1 Pro Annual | $29.99 | per year |


## What do users think of Mile?

Overall sentiment: positive

**Pros**

- 🚀 Helpful for EMS and first responders
- 🚀 Useful for locating mile markers
- 🚀 Works great even without cell signal
- 👍 Easy to use interface
- 👍 Visually appealing app

**Cons**

- 🐛 Crashes after recent update
- 🐛 Lagging issues
- 🐛 Doesn't function properly

**Commonly reported bugs**

- Crashes on launch
- Incompatible with newer iOS versions

**Most requested features**

- Add ability to see tenths of a mile
- Add search functionality
- Add compass/direction of travel
- Add map view showing all mile markers
- Add ability to drop pins and share locations

## Recent user reviews (10 of 37)

All indexed reviews: https://appshunter.io/ios/app/mile-1/id1562022453/reviews.md

### 5/5 — Car Play

*2026-07-25, version 6.3*

Love your app, use it everyday on the highway for construction.  When are you getting widgets for car play

### 5/5 — Awesome

*2026-07-19, version 6.2*

What a great app, it’s very useful. One thing I recommend they do with the next update is add the speed limit and this app will be gold! Thanks for making my life easier.

### 4/5 — Almost perfect

*2026-07-08, version 6.1*

The new update to store personal markers has made the app extremely useful as an inspector. Really wish we could set default states as looking across multiple jobsites over a period the app will refresh and have you scroll through the states and route types quite a bit.

### 4/5 — Good, but..

*2026-06-09, version 6.0*

I use this as a first responder and it helps a lot, but can you look into giving directions for both northbound and southbound specifically? Right now it usually just defaults to northbound.

### 1/5 — Navigation limit

*2026-06-02, version 5.5*

Wtf you mean there’s a navigation limit

### 1/5 — App broken since new update 7/11/25

*2025-07-11, version 5.2*

Since the new update yesterday the app crashes the moment I attempt to start it. Just white screen then crash.

### 1/5 — Crashes

*2025-07-10, version 5.2*

Just updated the app on iOS 16.7.11 and now it won’t open.

### 5/5 — Great for EMS

*2025-06-22, version 5.1*

I have been using this app for about a year now working on an ambulance. It works great for interstate calls with mile markers in unfamiliar areas, easily locating the mile marker and having the directions automatically take you there on apple maps.

### 5/5 — Awesome

*2025-04-18, version 4.9*

Def nice to have this app. It works great!

### 5/5 — Awesome!

*2025-02-23, version 4.7*

This app is great to see where you are on the interstate. Only thing now is I wish it had the ability to be on my iwatch so I could see where I am even faster, and not using my phone to see the mile marker.

## Frequently asked questions about Mile

### What does Mile-1 do?

Mile-1 is a highway milepost locator service that helps you find and share your precise real-time mile marker on U.S. Interstate and state highways. It provides location data even when you don't have a data connection.

### What are the key features of Mile-1?

Key features include real-time milepost identification, offline access to milepost data, the ability to share your current location, navigation to specific mileposts using Maps, and Siri integration for hands-free access to your milepost.

### Is Mile-1 free to use?

Yes, Mile-1 is a free application. There are no in-app purchases or advertisements mentioned, indicating it is entirely free for users.

### What kind of highways does Mile-1 cover?

The app covers nearly every highway on the U.S. Interstate system. It also includes a growing list of state and U.S. highways, providing broad coverage across the United States.

### How can Mile-1 be used for emergencies or reporting?

Mile-1 is invaluable for emergency personnel and roadside assistance as it allows them to locate you faster using your precise milepost. It also helps in searching for and reporting incidents, closures, or construction that are often referenced by mileposts.

## Version history (last 5 releases)

### 6.4.1 — 2026-08-12

CarPlay updates and bug fixes.

### 6.4 — 2026-08-06

Mile-1 for CarPlay is here!  A full featured CarPlay version of Mile-1 is now available with real-time mile markers.  Sync your existing saved markers or create new ones as you drive. Saved markers are great for incident or hazard reporting and useful for maintenance items such as potholes, signage, pavement, and guardrail.

### 6.3 — 2026-07-24

Real-time active stationing is here alongside real-time mile markers!  

Built for DOT, construction teams, inspection, operations, and maintenance, use the new Project Manager tab to upload your ORD or C3D LandXML alignment files to get real-time stationing in addition to real-time mile markers nationwide.  Most coordinate systems in North America are supported.  Upload your base files as a KML to complete the digital delivery of your project available in your pocket. 

Add project pins, photo and document your field tests and issues, and share reports with your clients.  Export your documentation in a PDF report, share pins, and share projects are all supported.  One person can set up a project within minutes and share with your team for easy import.

Mile-1 Pro has new options for sorting and filtering the marker points.  There is a new option for screenshots associated with a marker point in addition to the photos. Marker points can be exported to a PDF report.

A new option for adding your current speed to the map is also available.

### 6.2 — 2026-07-12

Wisconsin: Updates to Interstate, U.S., and state highways. Added dual direction support.

Fixed a bug that was causing live activities to stop working when in the background.

### 6.1 — 2026-06-27

Canada has been added for the Provinces of Ontario, Quebec, Nova Scotia, and Northwest Territories. These are kilometre posts, but they function just the same in the app.

Dual direction support on the New York State Thruway.

Custom markers point layer has been added so they can be turned on and off independently. The mile marker is now above the pin instead of below in order to make it easier to see when placing.

An option to show your current city in addition to the county is now available.

Both Streetview and LookAround can be selected on any marker where available.

For Mile-1 Pro users:
Custom markers can have an optional title.
Custom marker can also have the marker icons changed. 
New Screenshot Map Maker and editor is included. Screenshot maps are all saved on the mile marker manager tab. Map Maker is a handy tool for making crash location maps, highway closures, and construction maps. Save and share on your favorite social media sites.
All mile marker manager data can be backed up and restored as needed. 
Live Activities for mile markers are included.  Start a live activity in the app, with Shortcuts, or with Siri and see your live activity mile marker in CarPlay.
Added a solid background text option in the photo editor.

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## Related topics

[mile marker](https://appshunter.io/ios/topics/mile-marker) · [mile marker app with navigation feature](https://appshunter.io/ios/topics/mile-marker-app-with-navigation-feature) · [mile 1](https://appshunter.io/ios/topics/mile-1) · [mile marker 1](https://appshunter.io/ios/topics/mile-marker-1) · [emergency assistant](https://appshunter.io/ios/topics/emergency-assistant) · [rynsct mile marker](https://appshunter.io/ios/topics/rynsct-mile-marker) · [mile marker trip](https://appshunter.io/ios/topics/mile-marker-trip) · [emergency assistance](https://appshunter.io/ios/topics/emergency-assistance) · [interstate exits](https://appshunter.io/ios/topics/interstate-exits)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*