# Vulcan Materials vs Propeller Mobile

The clearest difference is review sentiment: Vulcan Materials at 75% against Propeller Mobile's 33%. Vulcan Materials also leads on rating (4.2 vs 3.8) and iOS requirement (8.0 vs 16.1). Propeller Mobile's advantage is update cadence (every 2 weeks vs every 14 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Vulcan Materials holds the better App Store score, 4.2 against 3.8. Both are backed by a comparable volume of ratings — 13 and 10 respectively. Written reviews point the same way: 75% of Vulcan Materials's written reviews are positive against 33% of Propeller Mobile's.

Vulcan Materials ships an update every 14 months, Propeller Mobile every 2 weeks. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Vulcan Materials | Propeller Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (13 ratings)](https://appshunter.io/ios/app/vulcan-materials/id551148285/reviews)** | [3.8 (10 ratings)](https://appshunter.io/ios/app/propeller-mobile-3d-mapping/id1644272004/reviews) |
| Number of ratings | **13** | 10 |
| Positive reviews | **75.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 3 MB | 276 MB |
| Requires iOS | **8.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vulcan Materials Company](https://appshunter.io/developer/551148288) | [Propeller Aerobotics Pty Ltd](https://appshunter.io/developer/1077083929) |

## 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


### Propeller Mobile

[App page](https://appshunter.io/ios/app/propeller-mobile-3d-mapping/id1644272004)

This app transforms your mobile device into a powerful site inspection tool. It provides real-time navigation, 3D site mapping, and media documentation to keep field crews connected and projects on track. Empower faster decisions with your job site in your pocket.

**Highlights:** Live navigation, 3D site mapping, Media documentation, Alignments and grade checking, Cut-fill analysis, Stockpile volume measurement, AeroPoint management

**Features:** macOS Compatibility, 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 Propeller Mobile free?

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

### Which has better reviews, Vulcan Materials or Propeller Mobile?

Vulcan Materials is rated higher. Vulcan Materials averages 4.2 out of 5 from 13 ratings, while Propeller Mobile averages 3.8 from 10 ratings.

### Do Vulcan Materials or Propeller Mobile have ads?

Neither Vulcan Materials nor Propeller Mobile shows ads.

### Which is updated more often, Vulcan Materials or Propeller Mobile?

Vulcan Materials ships an update every 14 months, and Propeller Mobile every 2 weeks. Most recently, Vulcan Materials was updated on October 23, 2026 and Propeller Mobile on October 30, 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.*