# ACS Gas Safety Exam CCN1 — CCN1 Mock Exams Tests Revision

> Mock exams and revision for ACS Core Domestic Gas Safety CCN1 certification. (iPhone/iPad app by iStudy Applications.)

- Source: https://appshunter.io/ios/app/acs-gas-safety-exam-ccn1/id6447238915 (this page in markdown: same URL + `.md`)
- Developer: [iStudy Applications](https://appshunter.io/developer/1554839516)
- Category: Education, Reference
- Price: $19.99
- Age rating: 4+
- Requires: iOS 12.0 · 35 MB
- Languages: American English
- Released: 2023-04-05
- Data updated: 2026-08-23
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/acs-gas-safety-exam-ccn1/id6447238915/reviews.md

## What is ACS Gas Safety Exam CCN1?

ACS Core Domestics Gas Safety CCN1 Mock Exam Preparation App will help beginners and re-assessment Gas installers that need to keep their ACS qualifications up to date with the latest exam questions to test and practice.

-The App contains hundreds of multiple choice questions similar to what you will find in the real world ACS exams.

-Practice as many times as required with no internet connection required after initial install.

-Works on both iPhone and iPad, install on both devices at no extra cost.

**ACS certificate is required to join the ‘Gas Safe Register’

The Core Domestic Gas Safety (CCN1) app includes CPA1 (Combustion Performance Analysis)

The Exam content covers

-Gas safety, legislation and standards
-Gas Rates
-Tightness testing and purging
-Installation of pipework and fittings (pipework within meter -installation and outlet pipework)
-Gas emergency 
-Gas Characteristics
-Products and characteristics of combustion
-Ventilation 
-Fluing Standards
-Gas Controls
-CPA1
-Re-establish existing gas supply and re-light appliances
-Gas control Rig questions


This product is not affiliated with nor endorsed by the ACS, all tests names are the right of the holder..

## Key features

- Hundreds of multiple-choice questions
- Covers CCN1 and CPA1 modules
- Offline practice available
- Unlimited practice sessions
- Supports iPhone and iPad

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/acs-gas-safety-exam-ccn1/id6447238915/reviews.md

### 1/5 — Poor app

*2025-05-27*

Constantly crashes, poorly worded questions, and some answers marked as wrong are definitely correct.

### 3/5 — Is not matching

*2025-05-25*

In the picture says 385 but in the reality only 310 plus is missing when you answer running doesn’t give the reason

## Frequently asked questions about ACS Gas Safety Exam CCN1

### What is ACS Gas Safety Exam CCN1?

ACS Gas Safety Exam CCN1 is a mobile application designed to help gas installers prepare for their Core Domestic Gas Safety CCN1 certification exams. It provides a large bank of multiple-choice questions similar to those found in real-world ACS exams.

### Does ACS Gas Safety Exam CCN1 require an internet connection?

No, after the initial installation, ACS Gas Safety Exam CCN1 can be used for practice as many times as required without an internet connection, making it convenient for offline study.

### What topics are covered in ACS Gas Safety Exam CCN1?

The app covers a wide range of essential topics including gas safety, legislation, pipework installation, gas emergency procedures, combustion analysis (CPA1), and re-establishing gas supplies. It aims to thoroughly prepare users for the certification.

### Can I use ACS Gas Safety Exam CCN1 on multiple devices?

Yes, the app is designed to work on both iPhone and iPad, and you can install it on both devices at no extra cost, offering flexibility in your study environment.

### How much does ACS Gas Safety Exam CCN1 cost?

ACS Gas Safety Exam CCN1 is a paid application, available for a one-time purchase price of $19.99. This grants you access to all its features and content.

### Is ACS Gas Safety Exam CCN1 updated regularly?

The latest version of ACS Gas Safety Exam CCN1 is 1.6, and it was last updated on June 12, 2025. This indicates ongoing development and potential for future content or feature updates.

### What is the age rating for ACS Gas Safety Exam CCN1?

ACS Gas Safety Exam CCN1 has an age rating of 4+, making it suitable for a broad audience. The content is educational and focused on professional certification.

### Does ACS Gas Safety Exam CCN1 have ads?

No, ACS Gas Safety Exam CCN1 does not contain advertisements. The app is ad-free, allowing users to focus on their exam preparation without interruptions.

## Version history (last 4 releases)

### 1.6 — 2025-06-12

- Questions updated, some removed as not tested any longer

### 1.5 — 2025-04-28

-Fixed Bug where some question text was not displaying correctly

### 1.2 — 2025-02-24

-Questions Updated

### 1.0 — 2023-04-05

No release notes.

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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 2026-08-23.*