# MDSS

> Mobile access to winter road maintenance decision support for authorized transportation agencies. (iPhone/iPad app by DTN, LLC.)

- Source: https://appshunter.io/ios/app/mdss/id663910124 (this page in markdown: same URL + `.md`)
- Developer: [DTN, LLC](https://appshunter.io/developer/404268542)
- Category: Weather, Travel
- Price: Free
- Rating: 2.60/5 from 20 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 80 MB
- Languages: American English
- Released: 2013-07-27
- Data updated: 2026-08-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mdss/id663910124/reviews.md

## What is MDSS?

The MDSS app is a mobile application for the Pooled Fund Study 
Maintenance Decision Support System (MDSS).  It is designed to provide 
mobile access to information that supports transportation winter 
maintenance decision making, including route-specific winter maintenance 
recommendations, weather and pavement forecasts, and observational data 
to include FAA/NWS and RWIS observations, weather maps, and camera images.

Account access is required. Organizations can subscribe to the MDSS service through DTN to enable access for their personnel. Contact DTN for subscription information.

## Key features

- Route-specific winter maintenance recommendations
- Weather and pavement forecasts
- FAA/NWS and RWIS observations
- Weather maps
- Camera images

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/mdss/id663910124/reviews.md

### 1/5 — Broke

*2026-04-23*

Last update broke it !can’t even open. It won’t do anything,please fix.

### 1/5 — Does not work in dark mode

*2020-10-16*

Menu choices, selections, etc don’t work/aren’t visible in dark mode. Please join the 21st century and make your app functional in dark mode

### 2/5 — Dark Mode Fix

*2020-05-11*

App needs to be updated to work with dark mode. When that’s enabled, the text becomes unreadable.

### 1/5 — Was fine until update

*2019-12-24*

Can’t read table view forecast the font is too light.....

### 3/5 — Updates

*2019-12-22*

I did all the updates and now I cannot see the table forecast the print is to light to see

### 1/5 — Terrible update

*2019-12-14*

I can’t even read the charts due to the contrast being to bright!

### 3/5 — Truck locations

*2018-11-17*

I updated and now have no truck locations/access to the road cameras.

### 1/5 — Update

*2018-09-30*

Your latest update just locked up the app. Nothing works now. I’m removing your app.

### 4/5 — Works as expected

*2014-02-07*

Five stars if truck locations get added!

## Frequently asked questions about MDSS

### What is MDSS?

MDSS is a mobile application designed to provide decision support for winter road maintenance. It offers route-specific recommendations, weather forecasts, and observational data to help transportation agencies manage winter conditions.

### Who can use the MDSS app?

Access to the MDSS app is restricted to preauthorized users in select transportation agencies. The information provided is not available to the general public.

### What kind of data does MDSS provide?

MDSS provides route-specific winter maintenance recommendations, weather and pavement forecasts, FAA/NWS and RWIS observations, weather maps, and camera images to support decision making.

### Is MDSS available on Android devices?

Based on the provided information, MDSS is supported on iPhone and iPad devices. It is not explicitly stated if it is available for Android.

### How often is MDSS updated?

The latest version of MDSS is 4.46.00, and it was last updated on October 30, 2025. This indicates regular updates to the application.

### What is the user rating for MDSS?

MDSS has a user rating of 2.7 stars based on 19 ratings. This suggests that user satisfaction may be mixed.

### Does MDSS have advertisements?

No, the provided data indicates that MDSS does not contain advertisements. It is a free application without ads.

### What is the age rating for MDSS?

MDSS has an age rating of 4+. This means it is suitable for users aged 4 and older.

## Version history (last 5 releases)

### 5.3.0 — 2026-08-21

- Improved truck selection in Operator Mode.
- Enhanced landscape-mode support in Operator Mode.
- Fixed forecast back button missing

### 5.1.0 — 2026-06-23

Fixed Routes table values not displaying on some weather variables
Map Overlays can now be turned off

### 5.0.3 — 2026-05-26

Fixed an issue where road and weather condition reports submitted in Operator Mode were not appearing correctly in WebMDSS.

### 5.0.1 — 2026-05-20

Minor fixes
Improved app stability
several UI/UX improvements
Location feature improvements

### 5.0.0 — 2026-05-17

Improved app stability
several UI/UX improvements
Location feature improvements

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## More apps by DTN, LLC

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All apps by DTN, LLC: https://appshunter.io/developer/404268542

## Related topics

[nwps](https://appshunter.io/ios/topics/nwps)

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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 2026-08-21.*