aCheck vs Sentinel DNA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
aCheck
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Attenti’s aCheck mobile app for offender biometric check-in through facial recognition, voice verification, and self-reporting. Designed for less intensive monitoring, aCheck reduces staff time spent on administrative functions. The app electronically records location and activity compliance, sends appointment reminders, and provides two-way voice and text communication between staff and offenders. Key Features * Biometric Identification – facial recognition and voice verification confirm the offender’s reports. * Self-Report – provides a low cost offender monitoring option. * Messaging – contact offenders through the app. * Calendar – display appointments. * Documents Upload - upload documents from phone's camera or gallery. * Community Resource Page – find local rehab, transportation, medical and other services.
Sentinel DNA
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.
- Access court ordered requirements
- View historical records
- Check assigned equipment
- Mission critical information
- Anytime, anywhere access
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The SentinelDNA mobile app puts mission critical information at the fingertips of field officers anytime, anywhere. Using their smart phone, officers can access a participant’s court ordered requirements, historical records, assigned equipment and other essential information.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | aCheck | Sentinel DNA |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.3 (6 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Attenti Group | Sentinel Offender Services LLC |
In-app purchases
aCheck
No in-app purchases
Sentinel DNA
No in-app purchases
