Gretio

Name: Gretio
Rating: 3.9 (22 reviews)
Author: Surreal Development LLC

By: Surreal Development LLC

The Missing Pocket Scan Tool

Features & Capabilities

The popular vehicle diagnostic tool is now on iOS!

Use Gretio with an OBDLINK MX+ to perform advanced diagnostic functions on your vehicle.

Analyze thousands of different data points at high speeds. Look up diagnostic trouble codes for all modules including the Engine Control Module, Chassis Control Module, Body Control Module, Radio, and more. Perform advanced service functions such as diesel particulate filter service regenerations, selective catalytic reduction tests, power relay tests, and even program some features.

Gretio is an advanced tool made for the DIY market. All procedures must be used in accordance with the vehicle's service manual or other OEM approved literature.

Gretio is made exclusively for General Motors vehicles. Additional models will be supported in the future.

User Growth & Download Statistics

App

By:

Surreal Development LLC

Rating:

3.90

(22)

Version:

1.07.12 Last updated: 2026-05-08

Version code:

885411918

Creation date:

2021-07-02

Compatible devices:

Size:

33.65MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-11

Compare stats and ranking:

Ranking

# 290,408 ▼ 759

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Surreal Development LLC

Apple Apps Store

https://apps.apple.com/us/app/gretio/id1498320180

User Reviews

I bought the lml rpo pack and have been using gretio with the obdlink mx+ to work on my 2016 Chevrolet Duramax LML and it’s been great. From the egr cooler bypass valve to the reductsnt tank heaters to the NOX2 sensor, this has proven to be invaluable and helped save me thousands of dollars doing things myself. Highly recommended!

by Mu*****, 2025-10-08

Worth every penny considering a dedicated scan tool with the same capabilities would cost you over a thousand bucks. I downloaded this app just for the service bay test function to clear the dreaded “poor DEF quality” countdown to limp mode on my diesel Colorado. Highly recommend!

by De*****, 2025-06-01

Though not super slick and sometimes crashes, this app is an absolute powerhouse for dealing with complex, intermittent sensor issues in modern diesels. Without question, I would not have been able to resolve my issue without it. Be sure to track down their troubleshooting guide if you are chasing diesel emissions issues. The guide brings context to the data and maps a path to resolution.