# Mass511 vs SRTMC

The clearest difference is rating: SRTMC at 5.0 against Mass511's 3.5. Mass511's advantage is update cadence (every 4 months vs every 12 months) and ratings volume (54 vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SRTMC holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Mass511 has 54 ratings behind it against 5, so its average is the more settled of the two.

Mass511 ships an update every 4 months, SRTMC every 12 months. The most recent releases landed on August 28, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Mass511 | SRTMC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (54 ratings)](https://appshunter.io/ios/app/mass511/id1640577370/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/srtmc/id6456737294/reviews)** |
| Number of ratings | **54** | 5 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Free | Free |
| Size | 40 MB | 40 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Castle Rock Associates, Inc.](https://appshunter.io/developer/664709239) | [Spokane Regional Transportation Management Center](https://appshunter.io/developer/1700584102) |

## What reviewers say

### Mass511

[App page](https://appshunter.io/ios/app/mass511/id1640577370)

Get real-time traffic updates, incident alerts, and camera views for Massachusetts highways. This app offers hands-free audio notifications and personalized route management to keep you informed while driving.

**Highlights:** Hands-free audio notifications, Zoom-enabled map with camera views, Real-time incident and weather updates, Personalized account management, Traffic speed monitoring, Access to traveler resources

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SRTMC

[App page](https://appshunter.io/ios/app/srtmc/id6456737294)

Get real-time traffic updates for the Spokane region. Receive hands-free audio alerts for events, view interactive maps with camera feeds, and manage personalized accounts for saved routes and notifications.

**Highlights:** Hands-free audio notifications, Zoom-enabled traffic map, Real-time traffic updates, Personalized account management, Traffic camera views, Road condition information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mass511 free?

Mass511 is free to download, with no in-app purchases.

### Is SRTMC free?

SRTMC is free to download, with no in-app purchases.

### Which has better reviews, Mass511 or SRTMC?

SRTMC is rated higher. Mass511 averages 3.5 out of 5 from 54 ratings, while SRTMC averages 5.0 from 5 ratings.

### Do Mass511 or SRTMC have ads?

Neither Mass511 nor SRTMC shows ads.

### Which is updated more often, Mass511 or SRTMC?

Mass511 ships an update every 4 months, and SRTMC every 12 months. Most recently, Mass511 was updated on August 28, 2026 and SRTMC on September 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*