# Array IDpass Client vs Signal Radar · Offline SOS AI

The clearest difference is price: Array IDpass Client at Free against Signal Radar · Offline SOS AI's $9.99. Array IDpass Client also leads on iOS requirement (10 vs 16.0). Signal Radar · Offline SOS AI's advantage is update cadence (fortnightly vs monthly). On ads, in-app purchases and device support there is nothing between them.

Array IDpass Client is free to download; Signal Radar · Offline SOS AI costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Array IDpass Client ships an update monthly, Signal Radar · Offline SOS AI fortnightly. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Array IDpass Client | Signal Radar · Offline SOS AI |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/signal-radar-offline-sos-ai/id6759822954/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Free |
| Size | 25 MB | 120 MB |
| Requires iOS | **10** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Array Taiwan Inc](https://appshunter.io/developer/1761128144) | [海峰 程](https://appshunter.io/developer/1872415836) |

## What reviewers say

### Array IDpass Client

[App page](https://appshunter.io/ios/app/array-idpass-client/id6608972921)

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

**In-app purchases:** none


### Signal Radar · Offline SOS AI

[App page](https://appshunter.io/ios/app/signal-radar-offline-sos-ai/id6759822954)

This app automatically detects and utilizes brief signal reconnections to send SOS messages with your location. It also provides offline, on-device AI assistance for emergency first aid and identifies global emergency hotline numbers.

**Highlights:** Automatic SOS message with GPS on signal recovery, On-device AI for emergency first aid guidance, Identification of venomous species and toxins, Step-by-step illustrated emergency procedures, Global emergency hotline directory, Privacy-first design with no backend or cloud data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Array IDpass Client free?

Array IDpass Client is free to download, with no in-app purchases.

### Is Signal Radar · Offline SOS AI free?

Signal Radar · Offline SOS AI costs $9.99, with no in-app purchases.

### Do Array IDpass Client or Signal Radar · Offline SOS AI have ads?

Neither Array IDpass Client nor Signal Radar · Offline SOS AI shows ads.

### Which is updated more often, Array IDpass Client or Signal Radar · Offline SOS AI?

Array IDpass Client ships an update monthly, and Signal Radar · Offline SOS AI fortnightly. Most recently, Array IDpass Client was updated on October 7, 2026 and Signal Radar · Offline SOS AI on October 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.*