# Vulcan Materials vs DigAlert

The clearest difference is update cadence: DigAlert at monthly against Vulcan Materials's every 14 months. DigAlert also leads on ratings volume (87 vs 12). Vulcan Materials's advantage is iOS requirement (8.0 vs 17.6). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.1 for Vulcan Materials against 4.0 for DigAlert. That said, the two scores are not equally well evidenced: DigAlert has 87 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 75% of Vulcan Materials's written reviews are positive against 68% of DigAlert's.

Vulcan Materials ships an update every 14 months, DigAlert monthly. The most recent releases landed on July 18, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | Vulcan Materials | DigAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (12 ratings)](https://appshunter.io/ios/app/vulcan-materials/id551148285/reviews)** | [4.0 (87 ratings)](https://appshunter.io/ios/app/digalert/id1039459557/reviews) |
| Number of ratings | 12 | **87** |
| Positive reviews | **75.0% of reviews** | 68.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Monthly** |
| Monetization | Free | Free |
| Size | 3 MB | 54 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Vulcan Materials Company](https://appshunter.io/developer/551148288) | [DigAlert](https://appshunter.io/developer/1039143899) |

## What reviewers say

### Vulcan Materials

[App page](https://appshunter.io/ios/app/vulcan-materials/id551148285)

Estimate construction material quantities for building and paving projects. Input job dimensions and material properties to calculate needs for aggregate, asphalt, and concrete. Offers menus for typical density values to aid calculations.

**Highlights:** Estimate construction material needs, Calculate aggregate, asphalt, and concrete quantities, Input job dimensions (length, width, thickness), Consider material density, Density value menus for aggregates

**Features:** macOS Compatibility

**In-app purchases:** none


### DigAlert

[App page](https://appshunter.io/ios/app/digalert/id1039459557)

This app provides underground utility locating services for homeowners and contractors in Southern California. It helps prevent dangerous accidents by informing users about the location of underground lines before digging. Access tools for ticket updates, expiration dates, and emergency contacts.

**Highlights:** Web update of tickets, View expiring tickets, DigAlert Express, Newtin ETA, Access Emergency / Vacuum Contacts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Vulcan Materials free?

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

### Is DigAlert free?

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

### Which has better reviews, Vulcan Materials or DigAlert?

Vulcan Materials is rated higher. Vulcan Materials averages 4.1 out of 5 from 12 ratings, while DigAlert averages 4.0 from 87 ratings.

### Do Vulcan Materials or DigAlert have ads?

Neither Vulcan Materials nor DigAlert shows ads.

### Which is updated more often, Vulcan Materials or DigAlert?

Vulcan Materials ships an update every 14 months, and DigAlert monthly. Most recently, Vulcan Materials was updated on July 18, 2026 and DigAlert on August 20, 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.*