Intoxalock vs aCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intoxalock
Manage your ignition interlock device account with ease. Track your status, make payments, schedule calibrations, and access important device information. Stay compliant and connected to your service center.
- Track account status
- Pay statements
- Schedule calibrations
- Contact service center
- Manage lease
- Request lockout reset
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The Intoxalock app offers self-service access to all of the important features in your account - anytime, anywhere. Key Features: • Track your account status and actions needed to remain in good standing • Pay and go! Get notices of your upcoming statements and pay in seconds • Get calibration reminders and order calibrations using the app • Get in touch with your service center • Save all your DUI contacts in one place • Be able to view, sign and even extend your lease • Request lockout reset • Access information on how to best use your interlock device
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.
Screenshots
Verdict
The clearest difference is iOS requirement: Intoxalock at 16.0 against aCheck's 18.6. On price, update cadence, 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.
Intoxalock ships an update every 2 months, aCheck every 3 months. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.
| Parameter | Intoxalock | aCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (893 ratings) — better | — |
| Positive reviews | 5.9% of reviews | — |
| Number of ratings | 893 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 116 MB | 28 MB |
| Age rating | 12+ | 4+ |
| Developer | Consumer Safety Technology, LLC | Attenti Group |
Bugs and requests
Intoxalock
Reported bugs
3 issues- App login issues
- Unreliable device performance
- Inconsistent lockout policies
Requested features
3 requests- Bluetooth test notifications
- Improved app functionality
- Transparent pricing information
aCheck
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Intoxalock
No in-app purchases
aCheck
No in-app purchases






