# GiraffeG4 Sentinel User App — Low Clearance Prevention App

> Low clearance collision prevention app for trucks and RVs with audible warnings. (iPhone/iPad app by GiraffeG4 Systems LLC.)

- Source: https://appshunter.io/ios/app/giraffeg4-sentinel-user-app/id1585801023 (this page in markdown: same URL + `.md`)
- Developer: [GiraffeG4 Systems LLC](https://appshunter.io/developer/1585801025)
- Category: Navigation, Travel
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: American English
- Released: 2023-06-11
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/giraffeg4-sentinel-user-app/id1585801023/reviews.md

## What is GiraffeG4 Sentinel User App?

1. Pay for the Sentinel User App on our website: www.giraffeg4.com
2. Download from App Store
3. Use your payment email and password to log into the App.

GiraffeG4 Sentinel User App will warn the operator of a truck or RV with an audible warning and map, 100 yards before they reach the bridge, trestle, or tunnel their vehicle will hit.
Simple to use,  just enter the height of your vehicle . You will have "low clearance" collision prevention wherever you're route takes you.
he Sentinel User App also provides warnings before the entrances to the Parkways in New York, New Jersey, Connecticut, and Massachusetts where trucks and RV's are prohibited, and the overpasses are very low.
Over 12,000 "low clearance" locations across the USA, Canada and the UK.

## Key features

- Audible low clearance warnings
- Map-based alerts
- Vehicle height input
- Prohibited parkway identification
- Extensive location database

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/giraffeg4-sentinel-user-app/id1585801023/reviews.md

### 1/5 — No support

*2026-02-27*

I can’t get logged into the app and sent emails trying to get help.  Tried resetting my password and it doesn’t work.

### 5/5 — Works well

*2025-03-04*

The app works well for me.  I’m able to pair it up with Google Maps so I don’t have to buy an expensive GPS

### 1/5 — No place to sign up

*2024-12-13*

Well can’t even use it because it opens to a sign in page and no place to create an account.   ???

## Frequently asked questions about GiraffeG4 Sentinel User App

### How do I pay for the GiraffeG4 Sentinel User App?

The GiraffeG4 Sentinel User App requires payment on their website, www.giraffeg4.com. After payment, you can download the app and log in using your payment email and password.

### What is the rating for the GiraffeG4 Sentinel User App?

The GiraffeG4 Sentinel User App has a rating of 3.7 stars based on 3 user ratings.

### What devices does the GiraffeG4 Sentinel User App support?

The GiraffeG4 Sentinel User App is supported on iPhone and iPod devices.

### What is the age rating for the GiraffeG4 Sentinel User App?

The GiraffeG4 Sentinel User App has an age rating of 4+.

### When was the GiraffeG4 Sentinel User App last updated?

The GiraffeG4 Sentinel User App was last updated on January 12, 2026, with version 1.7.

### Does GiraffeG4 Sentinel User App have ads?

No, the GiraffeG4 Sentinel User App does not contain advertisements.

### How many low clearance locations does GiraffeG4 Sentinel User App cover?

The GiraffeG4 Sentinel User App provides warnings for over 12,000 low clearance locations across the USA, Canada, and the UK.

### What information do I need to enter into GiraffeG4 Sentinel User App?

To use the GiraffeG4 Sentinel User App, you simply need to enter the height of your vehicle to receive low clearance collision prevention alerts.

## Version history (last 5 releases)

### 1.7 — 2026-01-12

Users may choose the distance at which they would like to be alert of low-clearance or parkway entrance hazards.

### 1.6 — 2025-03-26

Enhancements and bug fixes

### 1.4 — 2024-09-28

Enhancements to provide more relevant alerts to hazards near the driver.

### 1.3 — 2024-07-28

Bug fixes

### 1.2 — 2024-05-13

Bug fixes

## Apps similar to GiraffeG4 Sentinel User App

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [SafeStop RV](https://appshunter.io/ios/app/safestop-rv/id6560104034) | 1.0 (1) | Free | Navigation |
| [ORIGOInspect](https://appshunter.io/ios/app/origoinspect/id1641097861) | 3.0 (4) | Free | Navigation |
| [RouteOne GO: Truck Navigation](https://appshunter.io/ios/app/routeone-go-truck-navigation/id6737020004) | 5.0 (6) | Free | Navigation |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*