OnStation gives road construction crews live digital stationing on any phone. Know your exact station and offset instantly — no stakes, no rover, no manual calculation. Document what you see, where you see it, with every photo and note automatically anchored to a station reference.
WHAT IT DOES
Open the app on any phone and see your exact station and offset, tied to your project alignment. Drop a flag, take a photo, leave a note — all automatically geo-referenced to a precise station and timestamp. Your documentation builds itself as work happens, not at the end of the shift.
WHO USES ONSTATION
Prime contractors and field crews — Eliminate location hunting. Tie every photo and note to a station. Build defensible records for pay applications and change orders without extra paperwork. Density technicians log compaction test results directly in the field at the correct station, cutting hours of manual entry.
CEI inspection teams — Replace paper daily work reports with station-anchored photos, flags, and notes. Export documentation in DOT-ready formats. When a dispute arises over where work occurred, the evidence is already there.
DOT agencies — Create a shared platform across contractors, inspectors, and agency staff. Real-time oversight, standardized documentation, and Active Worksite safety notifications give agencies visibility that paper-based systems cannot provide.
KEY FEATURES
• Live digital stationing — instant station and offset on any phone, tied to the uploaded project alignment
• Geo-referenced flags, photos, and notes — every observation auto-anchored to a station and timestamp
• Design layer overlays — view plan sheets, utility maps, and CAD files on the live project map
• Flags and chat — drop a flag at any location, attach photos and notes, share across the project team
• DOT-ready reports — export documentation in standardized formats for closeout, audits, and compliance
• Active Worksite — alerts the traveling public of construction worker locations via Waze and navigation apps
• MM/LRS conversion — convert between stationing, milepost markers, and linear reference coordinates
• Integrations — connects with HCSS HeavyJob, Trimble, TransTech, FleetWatcher, and GPS/GNSS receivers
• Works offline — field documentation continues without connectivity
RESULTS FROM THE FIELD
• $18,000 saved per density technician per year — Mathy Construction
• Guardrail dispute resolved in seconds vs. hours — RS&H, I-4 Corridor FL
• GPS rover dependency eliminated from daily workflows — APEX Engineering
• 3 utility strikes avoided on a single project — Hoffman Construction
• "This is EXACTLY why I wanted this app. All this is now on record and we can all come back to it." — DOT Inspector, April 2026
ABOUT ONSTATION
Founded in 2013, OnStation is the leading digital stationing platform for road construction. Used on more than 5,000 projects by over 400 contractor organizations and 16+ state DOT agencies across the United States. SOC 2 Type 2 certified. Setup takes 30 minutes with no special hardware required.
Learn more: onstationapp.com
OnStation has made locating stations much easier. It has been incorporated into my daily life. The camera notes feature is one of my favorites due the the app putting the Station and location directly on the photo. This has help when sending issues to the contractors and make it easier for them to locate issues. Would highly recommend to anyone in the construction engineering inspection field! The OnStation team has been wonderful to deal with and has fixed any issues promptly.
Developer Response
Thanks man. So cool to hear it is part of your daily life. Good luck on your projects.
Location and project overview
Joelmacc
App works well to provide a detailed overview of location on project, as well as layers visible to see finished or proposed project. Works well on the job and loads quickly. Excellent for use in job siteMeetings and helps get visual information in front of all team members. Would definitely recommend!
Developer Response
Thanks Joel. Yes... effective on the project and in the office.
Great resource
Shea Hurley
This app is a great resource for both field and office staff for issue communication and for use of location and item tracking. I highly recommend the use of this app and subscription service!
Superintendent
Jrivera2904
It works great but I am having a slight issue with my picture capturing portion of it every time I take a picture all it shows is a blacked out screen, and it doesn’t capture the picture even after the update it still doesn’t
- Fixed logout issue
Version 4.1.4
The developer, PROJiTECH LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
PROJiTECH LLC
Size
187.1 MB
Category
Reference
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
iPad Requires iPadOS 16.0 or later.
Apple Vision Requires visionOS 1.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.
