# RMCMobile vs Vulcan Line Tools

The clearest difference is update cadence: Vulcan Line Tools at every 3 weeks against RMCMobile's every 24 months. On price, ads, in-app purchases and device support there is nothing between them.

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

RMCMobile ships an update every 24 months, Vulcan Line Tools every 3 weeks. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RMCMobile | Vulcan Line Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/vulcan-line-tools/id1525784906/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 2 MB | 159 MB |
| Requires iOS | 17.6 | **16** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DELTA COMPUTER SYSTEMS, Inc](https://appshunter.io/developer/1518852544) | [Zachary Young](https://appshunter.io/developer/1525784908) |

## What reviewers say

### RMCMobile

[App page](https://appshunter.io/ios/app/rmcmobile/id1518852545)

**In-app purchases:** none


### Vulcan Line Tools

[App page](https://appshunter.io/ios/app/vulcan-line-tools/id1525784906)

This utility app helps power line crews accurately measure line sag, tension, and temperature. It ensures power lines meet specifications, preventing overstress on poles and saving time and money for utilities.

**Highlights:** Measure line sag, Determine line tension, Calculate line temperature, Ensure proper line specifications, Prevent pole overstress, Save time and money

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RMCMobile free?

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

### Is Vulcan Line Tools free?

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

### Do RMCMobile or Vulcan Line Tools have ads?

Neither RMCMobile nor Vulcan Line Tools shows ads.

### Which is updated more often, RMCMobile or Vulcan Line Tools?

RMCMobile ships an update every 24 months, and Vulcan Line Tools every 3 weeks. Most recently, RMCMobile was updated on October 27, 2026 and Vulcan Line Tools on October 29, 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.*