# AccuRad vs Sentry

The clearest difference is rating: AccuRad at 4.0 against Sentry's 3.7. AccuRad also leads on iOS requirement (14.0 vs 16.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

AccuRad holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 4 and 6 respectively.

AccuRad ships an update every 5 months, Sentry every 3 months. The most recent releases landed on September 18, 2026 and August 10, 2026 respectively.

## The numbers

| Metric | AccuRad | Sentry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/accurad/id1494098537/reviews)** | [3.7 (6 ratings)](https://appshunter.io/ios/app/sentry-secure/id1525626794/reviews) |
| Number of ratings | 4 | **6** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 26 MB | 56 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mirion Technologies, Inc.](https://appshunter.io/developer/561534087) | [VPI Engineering](https://appshunter.io/developer/888055894) |

## What reviewers say

### AccuRad

[App page](https://appshunter.io/ios/app/accurad/id1494098537)

This app provides a mobile interface for a personal radiation detector, enabling real-time data relay for emergency responders. It connects to various management software and offers instructional videos for device operation.

**Highlights:** Real-time geospatial and radiological data relay, Connects to RadResponder, Sigma, and SpirVIEW software, Library of how-to videos for device operation, Intuitive interface with user-friendly navigation, Secure data sharing compliant with international standards, Remote reachback connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentry

[App page](https://appshunter.io/ios/app/sentry-secure/id1525626794)

Enhances situational awareness for law enforcement and first responders involved in alarm monitoring strategies. It supports partnerships with government and businesses to protect strategic assets globally.

**Highlights:** Elevates situational awareness, Supports alarm monitoring strategies, Partners with government and first responders, Protects strategic assets globally

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AccuRad free?

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

### Is Sentry free?

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

### Which has better reviews, AccuRad or Sentry?

AccuRad is rated higher. AccuRad averages 4.0 out of 5 from 4 ratings, while Sentry averages 3.7 from 6 ratings.

### Do AccuRad or Sentry have ads?

Neither AccuRad nor Sentry shows ads.

### Which is updated more often, AccuRad or Sentry?

AccuRad ships an update every 5 months, and Sentry every 3 months. Most recently, AccuRad was updated on September 18, 2026 and Sentry on August 10, 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.*