# Sprinkler Fitters 550 — Boston, MA

> Fire protection industry union app for member communication and information sharing. (iPhone/iPad app by Local Union 550.)

- Source: https://appshunter.io/ios/app/sprinkler-fitters-550/id1441712250 (this page in markdown: same URL + `.md`)
- Developer: [Local Union 550](https://appshunter.io/developer/1441712249)
- Category: News
- Price: Free
- Rating: 4.60/5 from 20 App Store ratings
- Age rating: 17+
- Requires: iOS 12.0 · 115 MB
- Languages: English
- Released: 2018-11-10
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sprinkler-fitters-550/id1441712250/reviews.md

## What is Sprinkler Fitters 550?

Sprinkler Fitters Local Union 550 is an organization of licensed journey-persons and apprentices working in the fire protection industry in the Greater Boston area.  We have been in existence for over 100 years.  Our app will be used to efficiently share information with our members and to also communicate with the unrepresented workers working in our industry.

## Key features

- Efficient information sharing
- Communication with unrepresented workers
- Industry-specific updates
- Member resources


## Frequently asked questions about Sprinkler Fitters 550

### What is Sprinkler Fitters 550 used for?

Sprinkler Fitters 550 is used to efficiently share information with union members and communicate with unrepresented workers in the fire protection industry in the Greater Boston area.

### Is Sprinkler Fitters 550 free to download?

Yes, Sprinkler Fitters 550 is available for free on the App Store.

### What devices does Sprinkler Fitters 550 support?

Sprinkler Fitters 550 is supported on iPhone, iPad, and iPod touch devices.

### How often is Sprinkler Fitters 550 updated?

The latest version of Sprinkler Fitters 550 was released on May 10, 2026, indicating regular updates to ensure functionality and information accuracy.

### What is the age rating for Sprinkler Fitters 550?

Sprinkler Fitters 550 has an age rating of 17+, suggesting content that may not be suitable for younger users.

### What is the user sentiment for Sprinkler Fitters 550?

Sprinkler Fitters 550 has a strong user rating of 4.6 stars from 20 ratings, indicating generally positive user experiences.

### Does Sprinkler Fitters 550 have ads?

No, Sprinkler Fitters 550 does not contain advertisements.

### Who developed Sprinkler Fitters 550?

Sprinkler Fitters 550 was developed by Local Union 550.

## Version history (last 5 releases)

### 26.05.19 — 2026-06-01

General bug fixes and performance improvements

### 26.05.11 — 2026-05-18

General bug fixes and performance improvements

### 26.05.08 — 2026-05-10

General bug fixes and performance improvements

### 26.02.12 — 2026-02-13

General bug fixes and performance improvements

### 25.02.07 — 2025-03-11

General bug fixes and performance improvements

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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 2026-06-01.*