# CASI vs FBIS

The clearest difference is update cadence: FBIS at every 3 weeks against CASI's every 6 months. CASI's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

CASI ships an update every 6 months, FBIS every 3 weeks. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | CASI | FBIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/casi/id1107654649/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 57 MB | 19 MB |
| Requires iOS | **12.4** | 13 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Limitless Virtual Pty Ltd](https://appshunter.io/developer/922842180) | [Kartoza (PTY) Ltd.](https://appshunter.io/developer/1718749964) |

## What reviewers say

### CASI

[App page](https://appshunter.io/ios/app/casi/id1107654649)

This app provides immediate assistance during emergencies by sending urgent alerts to a control room, which then dispatches the nearest qualified responder. It connects users to a network of over 400 verified service providers for armed response, medical aid, and roadside assistance.

**Highlights:** Instant emergency alerts, Connects to qualified responders, Network of 400+ service providers, Armed response, Medical response, Roadside assistance, Responder performance tracking

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### FBIS

[App page](https://appshunter.io/ios/app/fbis/id6473277389)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CASI free?

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

### Is FBIS free?

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

### Do CASI or FBIS have ads?

Neither CASI nor FBIS shows ads.

### Which is updated more often, CASI or FBIS?

CASI ships an update every 6 months, and FBIS every 3 weeks. Most recently, CASI was updated on September 24, 2026 and FBIS on September 25, 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.*