# BSS FirstResponder vs Selective Service System

The clearest difference is update cadence: BSS FirstResponder at every 2 months against Selective Service System's every 4 months. BSS FirstResponder also leads on iOS requirement (15.1 vs 18.6). Selective Service System's advantage is ratings volume (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for BSS FirstResponder against 5.0 for Selective Service System. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

BSS FirstResponder ships an update every 2 months, Selective Service System every 4 months. The most recent releases landed on June 24, 2026 and July 24, 2026 respectively.

## The numbers

| Metric | BSS FirstResponder | Selective Service System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/bss-firstresponder/id1488506997/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/selective-service-system/id6445855725/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 30 MB | 55 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Building Safety Solutions](https://appshunter.io/developer/739220947) | [Selective Service System](https://appshunter.io/developer/1674277870) |

## What reviewers say

### BSS FirstResponder

[App page](https://appshunter.io/ios/app/bss-firstresponder/id1488506997)

This app provides building staff with comprehensive information for efficient incident response. It features building-specific diagrams, quick reference system descriptions, and an interactive floor plan viewer to locate critical equipment. The goal is to prevent property damage and costly business interruptions.

**Highlights:** Building-specific diagrams, Quick reference system descriptions, Interactive floor plan viewer, Critical equipment location, Incident response efficiency

**Features:** macOS Compatibility

**In-app purchases:** none


### Selective Service System

[App page](https://appshunter.io/ios/app/selective-service-system/id6445855725)

This app provides resources for volunteers involved in national defense. It offers an electronic library with interactive guides, contact information, FAQs, newsletters, multimedia, and checklists to support their roles in local communities.

**Highlights:** Interactive guides, Contact information, Frequently Asked Questions, Newsletters, Multimedia resources, Checklist archive

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BSS FirstResponder free?

BSS FirstResponder is free to download, with no in-app purchases.

### Is Selective Service System free?

Selective Service System is free to download, with no in-app purchases.

### Which has better reviews, BSS FirstResponder or Selective Service System?

BSS FirstResponder and Selective Service System are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do BSS FirstResponder or Selective Service System have ads?

Neither BSS FirstResponder nor Selective Service System shows ads.

### Which is updated more often, BSS FirstResponder or Selective Service System?

BSS FirstResponder ships an update every 2 months, and Selective Service System every 4 months. Most recently, BSS FirstResponder was updated on June 24, 2026 and Selective Service System on July 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*