# ArcWatch vs Sentinel IoT

ArcWatch and Sentinel IoT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

ArcWatch ships an update every 2 months, Sentinel IoT every 5 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ArcWatch | Sentinel IoT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arcwatch/id1339654252/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 42 MB | 156 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Arcfyre Group](https://appshunter.io/developer/1651369077) | [Global Security Consulting (PTY) Ltd](https://appshunter.io/developer/1882202116) |

## What reviewers say

### ArcWatch

[App page](https://appshunter.io/ios/app/arcwatch/id1339654252)

This app provides global location tracking and emergency response features for travelers. It offers SOS and Check-In functions for live location monitoring, ideal for those exposed to travel risks in unfamiliar areas.

**Highlights:** Live location tracking, SOS function, Check-In function, Emergency response, Geo-location based alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentinel IoT

[App page](https://appshunter.io/ios/app/sentinel-iot/id6759997124)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ArcWatch free?

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

### Is Sentinel IoT free?

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

### Do ArcWatch or Sentinel IoT have ads?

Neither ArcWatch nor Sentinel IoT shows ads.

### Which is updated more often, ArcWatch or Sentinel IoT?

ArcWatch ships an update every 2 months, and Sentinel IoT every 5 weeks. Most recently, ArcWatch was updated on October 20, 2026 and Sentinel IoT 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.*