# TRS — Turnout Response System

> Turnout Response System (iPhone/iPad app by Mark Hessling.)

- Source: https://appshunter.io/ios/app/trs/id1115098064 (this page in markdown: same URL + `.md`)
- Developer: [Mark Hessling](https://appshunter.io/developer/1100565444)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 10 MB
- Languages: American English
- Released: 2018-02-09
- Data updated: 2026-01-04
- User reviews in markdown: https://appshunter.io/ios/app/trs/id1115098064/reviews.md

## What is TRS?

TRS is a tool to supplement the existing response procedure for volunteer emergency responders. It allows a responder to quickly indicate their response to an incident without resorting to slow and unsafe practices such as calling or sending a text message while in the process of responding. 
Other features include:
- a simple messaging system
- ability to specify future availability
The TRS app requires a TRS server to be available to users.


## Version history (last 5 releases)

### 4.3.4 — 2023-10-20

Change to the way Google Maps support is loaded

### 4.3.3 — 2023-08-31

Fix instability by changing the way Google Maps is loaded

### 4.3.1 — 2023-06-12

- Fix bug with responding to incident with NFC tag and QRCode
- Add Register Attendance app shortcut
- More rigorous validation when saving incident
- Confirmation details shown when saving incident
- Change some text on Location page
- Fixed message selection handled differently

### 4.3.0 — 2023-06-10

Add fixed messages to messaging page.

### 4.2.1 — 2022-11-13

Internal changes to be more secure

## Apps similar to TRS

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| --- | --- | --- | --- |
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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 2026-01-04.*