# BS 5839-1 Support App

> BS 5839-1 Support App (iPhone/iPad app by Zentralize.)

- Source: https://appshunter.io/ios/app/bs-5839-1-support-app/id6756184575 (this page in markdown: same URL + `.md`)
- Developer: [Zentralize](https://appshunter.io/developer/1858937021)
- Category: Business
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 3 MB
- Languages: American English
- Released: 2025-12-12
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/bs-5839-1-support-app/id6756184575/reviews.md

## What is BS 5839?

The BS 5839-1 Support App gives fire alarm engineers a quick, reliable way to access key guidance, calculations, and reference material while on the job. It’s designed to save time, reduce mistakes, and keep essential information in one place, even when you’re offline.

Whether you’re checking system categories, confirming sound levels, or running a battery calculation, everything is presented clearly and simply.

Key Features
	•	Fast reference to BS5839 guidance
Access essential points from the standard in a clean, easy-to-read format.
	•	Battery Capacity Calculator
Quickly work out standby and alarm load using a streamlined, engineer-friendly tool.
	•	Offline Access
Your saved PDF guides and reference documents remain available without a network connection.
	•	Guidance on responsibilities and system design
Handy summaries covering roles, documentation, categories, and maintenance requirements.
	•	Built for real-world use
Simple layout, large text options, dark mode support, and minimal clutter.

The app is designed to support engineers, inspectors, and fire safety professionals who need trustworthy information at their fingertips. No complicated menus. No unnecessary features. Just fast access to what matters.


## Version history (last 5 releases)

### 1.5 — 2026-02-05

Name alteration

### 1.4 — 2026-01-31

Update to Calculator wording

Updates to Legal Disclosure

### 1.3 — 2026-01-29

API Key updates

### 1.2 — 2026-01-08

Compatibility Updates

### 1.0 — 2025-12-12

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 2026-05-17.*