# Cummins Guidanz — user reviews

> 14 indexed App Store user reviews of Cummins Guidanz by Cummins Inc., rated 3.10/5 from 49 ratings.

- Source: https://appshunter.io/ios/app/cummins-guidanz/id1184579875/reviews
- App overview in markdown: https://appshunter.io/ios/app/cummins-guidanz/id1184579875.md
- Rating breakdown: 5★ 19 · 4★ 7 · 3★ 1 · 2★ 3 · 1★ 19

## Most critical reviews (10 lowest-rated)

### 1/5 — Update

*2025-07-27, version 7.2.0*

Keep us update on latest version ,

### 1/5 — Constant issues

*2024-04-15*

Very slow, creating an image takes forever, constant server communication issues.

### 1/5 — No stars

*2022-04-19, version 5.1.0*

So the idiots at Cummins decided to ditch quickserve app and use this guidance trash that doesn’t even work. This has become a money making for them. Also, while you are it Cummins needs to put better product on the road besides these machines that keep breaking down. It’s time for CAT to come out of retirement and show these vampires at Cummins how to make a real engine that last more than a million miles.

### 1/5 — disappointed

*2022-03-11, version 5.1.0*

I used this App a lot because we are a Dealership selling used Cummin engines, and we no longer have access to this App to have information on each engine we sell.  this is something really disappointing and even more so when it says that you have to pay more than $1,200 a year for them to give you simple information

### 1/5 — USELESS App says I need update but no update available

*2022-01-16, version 5.0.1*

This app used to work but now it says I need an update when one isn’t available. I can no longer communicate with my engine!!

### 1/5 — Crushing

*2022-01-07, version 5.0.1*

The app crushes constantly, if you start performing ECU software update, and the app crushes, ECU is toast.

### 1/5 — Unusable app

*2021-08-16, version 4.7.0*

Will not even let me in.  Says I need to update but the app is directly off the App Store.  Have tried deleting and reinstalling to no avail. Garbage.

### 1/5 — Update doesn’t respond

*2021-04-28, version 4.6.0*

Keeps taking me back to the start page when I tap on the update action tab

### 2/5 — Bug not fixed

*2023-01-05, version 6.0.1*

In ios your app stops working while creating image

### 3/5 — Ok, but not perfect

*2023-02-08, version 6.2.0*

When downloading calibration file app suddenly sign out
Kindly resolve the problem

## Most praised reviews (4 highest-rated)

### 5/5 — Test

*2025-01-14, version 7.1.0*

Reviews are 2yrs old

### 4/5 — Good but not perfect

*2022-11-10, version 6.0.1*

Many time app closes bugs problem and in ios image can’t be created it stops on 80%. Need to improve app.

### 4/5 — A convenient version of Insite

*2022-08-25, version 6.0.0*

Mobile mechanic for a Cummins powered bus fleet. The app gives you translation of J1939 codes with brief explanations. It will not clear codes, so it is back to the shop for more complicated jobs. I’m finding it good for sensor swap outs or disconnects. Avoid calibration updates as Bluetooth is not as reliable as a cable connection(a shop job for sure). I hope to see more development of the app. For those whom can afford the telematics subscription, good luck. For the poor man, go with QuickServe online or hard copy manuals.

### 3/5 — Bug application

*2022-02-28, version 5.1.0*

kindly update for bugs free as while connecting to bluetooth app gets back to home screen iOS version.

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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 2026-09-04.*