# Trailer Sentry vs Mountain ELD

The clearest difference is update cadence: Mountain ELD at every 6 weeks against Trailer Sentry's every 5 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.

Trailer Sentry ships an update every 5 months, Mountain ELD every 6 weeks. The most recent releases landed on September 16, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Trailer Sentry | Mountain ELD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (3 ratings)](https://appshunter.io/ios/app/mountain-eld/id1658754104/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | — | Free |
| Size | 2 MB | 38 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [7PSolutions, LLC](https://appshunter.io/developer/977726086) | [Mountain Safety Inc.](https://appshunter.io/developer/1658754136) |

## What reviewers say

### Trailer Sentry

[App page](https://appshunter.io/ios/app/trailer-sentry/id1221831418)

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

**In-app purchases:** none


### Mountain ELD

[App page](https://appshunter.io/ios/app/mountain-eld/id1658754104)

This app provides a DOT-compliant Electronic Logging Device (ELD) solution for managing Hours of Service (HOS) and fleet operations. It offers powerful yet simple tools for tracking and tracing, supporting property-carrying FMCSA regulations for US and Canada.

**Highlights:** DOT Compliant ELD Solution, HOS Management Tools, Fleet Operations Oversight, GPS Track and Trace, Property-Carrying FMCSA Regulations Support, USA and Canada Duty Cycle Support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trailer Sentry free?

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

### Is Mountain ELD free?

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

### Do Trailer Sentry or Mountain ELD have ads?

Neither Trailer Sentry nor Mountain ELD shows ads.

### Which is updated more often, Trailer Sentry or Mountain ELD?

Trailer Sentry ships an update every 5 months, and Mountain ELD every 6 weeks. Most recently, Trailer Sentry was updated on September 16, 2026 and Mountain ELD 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.*