# AC diagnosis — Smart Performance Sensor

> Bluetooth car AC diagnostic tool with smart sensor for professional performance testing. (iPhone/iPad app by Digi Charging Technology, LLC.)

- Source: https://appshunter.io/ios/app/ac-diagnosis/id1307130445 (this page in markdown: same URL + `.md`)
- Developer: [Digi Charging Technology, LLC](https://appshunter.io/developer/1307130444)
- Category: Business, Productivity
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 26 MB
- Languages: English
- Released: 2017-12-19
- Data updated: 2026-06-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ac-diagnosis/id1307130445/reviews.md

## What is AC diagnosis?

The app needs to be connected to the AC diagnosis sensor. Discover more on: www.acdiagnosis.com

Diagnose & Charge car AC systems like a PRO!
Built-in Smart IoT technology, the AC diagnosis tool helps you to make sure the system is diagnosed and charged correctly. It provides you with live AC vent temperature data, avoids dangerous pressure levels, and perfectly charges your car's Air Conditioning system.

AC diagnosis makes troubleshooting Car Air Conditioning problems easier.
AC diagnosis is the first Bluetooth car diagnostic tool that delivers professional AC diagnostics through your smartphone. Unlike conventional in-vent thermometer tests, AC diagnosis compares vent temperature to ambient air along with humidity levels, demonstrating exactly how effective a car’s AC is. 

Intuitive and ​​easy-to-use app.
The app is designed to be extremely simple. It diagnoses the car's AC problems with unmatched accuracy. Shares the diagnostic report with the findings direct to the customer’s device via email, text, or WhatsApp. Then it helps to fix Air Conditioning issues quickly and finish your job faster.

High-quality AC service starts with diagnostics customers can trust.
Testing vehicle air conditioning performance during an inspection with a thermometer the results are inaccurate in many cases since the vent temperature isn’t tested relative to the ambient temperature, and humidity isn’t checked at all. AC diagnosis smart IoT sensor, U.S. Pat. No. 10,408,515, measures ambient air temperature and humidity to calculate how the AC system is performing relatively, giving a much more accurate performance test result. Drivers demand honest, professional, and knowledgeable mechanics.

Benefits of Data Analytics are indisputable.
AC diagnosis data can be implemented as part of any complementary Digital Vehicle Inspections software or Fleet Management Platform to add authenticity and trust. Gain full visibility into your operation and make decisions based on data you can trust.

Want to buy AC diagnosis sensor?
Discover more on: www.acdiagnosis.com

## Key features

- Diagnose and charge car AC systems
- Live AC vent temperature data
- Avoid dangerous pressure levels
- Compare vent temp to ambient and humidity
- Share diagnostic reports via email/text
- Bluetooth connectivity to smart sensor


## Frequently asked questions about AC diagnosis

### What is AC diagnosis?

AC diagnosis is a Bluetooth car diagnostic tool that connects to a smart sensor to help you diagnose and charge car AC systems. It provides live data and accurate performance testing.

### How does AC diagnosis work?

The app works by connecting to the AC diagnosis smart IoT sensor via Bluetooth. It measures vent temperature, ambient air temperature, and humidity to accurately assess the car's AC system performance.

### Can AC diagnosis be used offline?

The app requires a connection to the AC diagnosis sensor and likely a Bluetooth connection to function. Specific offline capabilities are not detailed in the provided information.

### What devices support AC diagnosis?

AC diagnosis is supported on iPhone, iPad, and iPod devices. It is designed for use with the AC diagnosis smart sensor.

### How accurate is AC diagnosis?

AC diagnosis offers unmatched accuracy by comparing vent temperature to ambient air and humidity levels, providing a more reliable performance test than conventional methods.

### Can I share diagnostic reports with customers?

Yes, the app allows you to share diagnostic reports directly with customers via email, text, or WhatsApp, enhancing transparency and trust.

### Is AC diagnosis free to use?

Yes, AC diagnosis is available for free. The app's functionality is dependent on the AC diagnosis smart sensor.

### When was AC diagnosis last updated?

AC diagnosis was last updated on May 6, 2024, with version 1.5.2.

## Version history (last 5 releases)

### 1.5.2 — 2024-05-06

NEW IMPROVED VERSION
- Professional support: car Air Conditioning service and troubleshooting
- Share the AC performance test with the customer
- Data Log: save all AC performance test results
- Print AC performance test report
- Bugs fixes

### 1.5.1 — 2024-05-04

NEW IMPROVED VERSION
- Professional support: car Air Conditioning service and troubleshooting
- Share the AC performance test with the customer
- Data Log: save all AC performance test results
- Print AC performance test report
- Bugs fixes

### 1.4.1 — 2022-06-27

- Minor bugs fixed

### 1.4.0 — 2022-06-16

- Print the diagnostic report
- Advanced AC Troubleshooting
- Pressure gauge readings analysis
- Minor bugs fixed

### 1.3.1 — 2021-03-19

We are constantly striving to improve our AC diagnosis App. With this version, we introduced new features:
- PREMIUM version
- user can add car info
- user can add auto repair information 
- diagnostic report is not sharable
- user page
- new language: Italian

We have also fixed some minor bugs and improved the user experience.

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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 2026-06-24.*