# CCR Builder

> Interactive checklist and calculator for Closed Circuit Rebreather assembly. (iPhone/iPad app by Kristoffer Nielsen.)

- Source: https://appshunter.io/ios/app/ccr-builder/id1635036453 (this page in markdown: same URL + `.md`)
- Developer: [Kristoffer Nielsen](https://appshunter.io/developer/1635036455)
- Category: Sports
- Price: $4.99
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.4 · 14 MB
- Languages: English
- Released: 2022-07-17
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ccr-builder/id1635036453/reviews.md

## What is CCR Builder?

CCR Builder is an interactive assembly checklist for Closed Circuit Rebreathers (CCRs). No more paper checklists, calculators, or spreadsheets, CCR Builder is right on your phone ready when you need it. It's fast and intuitive to use and handles all the calculations for you on the fly. Currently supporting the KISS Sidewinder CCR, with more on the way.

## Key features

- Interactive assembly checklist
- On-the-fly calculations
- Digital alternative to paper checklists
- Supports KISS Sidewinder CCR
- Intuitive and fast user interface

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ccr-builder/id1635036453/reviews.md

### 5/5 — Excellent for Sidewinder

*2022-09-10*

Excellent checklist for the KISS Sidewinder. Cell linearity calculations are an awesome feature. Looking forward to seeing how this app evolves!

## Frequently asked questions about CCR Builder

### What is CCR Builder?

CCR Builder is an interactive digital checklist designed for the assembly of Closed Circuit Rebreathers (CCRs). It aims to replace traditional paper checklists and manual calculations with a fast, intuitive mobile interface.

### What CCR models does CCR Builder support?

Currently, CCR Builder supports the KISS Sidewinder CCR. The developer plans to add support for more CCR models in future updates.

### Does CCR Builder perform calculations?

Yes, CCR Builder handles all necessary calculations for rebreather assembly on the fly, eliminating the need for separate calculators or spreadsheets.

### How much does CCR Builder cost?

CCR Builder is available for a one-time purchase price of $4.99.

### What devices is CCR Builder compatible with?

CCR Builder is compatible with iPhone, iPad, and iPod devices.

### When was CCR Builder last updated?

The latest version of CCR Builder, 1.0.4, was last updated on October 26, 2022.

### What is the age rating for CCR Builder?

CCR Builder has an age rating of 4+, making it suitable for a wide range of users.

### Does CCR Builder have ads?

No, CCR Builder does not contain advertisements.

## Version history (last 2 releases)

### 1.0.4 — 2022-10-26

- Timer with notification for Negative & Positive tests
- New Checklist menu allowing for multiple action items (to support future releases)
- Improved touch functionality and usability for buttons and checkboxes
- Numerous minor layout improvements
- Minor content changes

### 1.0.3 — 2022-07-18

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 2026-06-10.*