# aCheck vs Sentinel DNA

The clearest difference is update cadence: Sentinel DNA at monthly against aCheck's every 3 months. Sentinel DNA also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.6). On price, 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.

aCheck ships an update every 3 months, Sentinel DNA monthly. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | aCheck | Sentinel DNA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (6 ratings)](https://appshunter.io/ios/app/sentinel-dna/id1493351872/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free |
| Size | 28 MB | 23 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Attenti Group](https://appshunter.io/developer/1351404812) | [Sentinel Offender Services LLC](https://appshunter.io/developer/1491225869) |

## What reviewers say

### aCheck

[App page](https://appshunter.io/ios/app/acheck/id1482256184)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentinel DNA

[App page](https://appshunter.io/ios/app/sentinel-dna/id1493351872)

This app provides field officers with instant access to critical participant information, including court orders, historical records, and equipment assignments, directly from their smartphones. It ensures essential data is available anytime, anywhere for efficient mission operations.

**Highlights:** Access court ordered requirements, View historical records, Check assigned equipment, Mission critical information, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is aCheck free?

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

### Is Sentinel DNA free?

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

### Do aCheck or Sentinel DNA have ads?

Neither aCheck nor Sentinel DNA shows ads.

### Which is updated more often, aCheck or Sentinel DNA?

aCheck ships an update every 3 months, and Sentinel DNA monthly. Most recently, aCheck was updated on September 9, 2026 and Sentinel DNA on September 11, 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.*