Comparison

Intoxalock vs aCheck

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Track account status
  • Pay statements
  • Schedule calibrations
  • Contact service center
  • Manage lease
  • Request lockout reset
Features
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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

About

aCheck

Features
Read full description

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

Intoxalock4 screens
aCheck4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Intoxalock versus aCheck: the parameters behind the verdict, then further details
ParameterIntoxalockaCheck
PriceFreeFree
Rating1.7 (893 ratings) — better—
Positive reviews5.9% of reviews—
Number of ratings893 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS16.0 — better18.6
Further details — not scored
Size116 MB28 MB
Age rating12+4+
DeveloperConsumer Safety Technology, LLCAttenti 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

None

Intoxalock

No in-app purchases

None

aCheck

No in-app purchases

Questions

Is Intoxalock free?
Intoxalock is free to download, with no in-app purchases.
Is aCheck free?
aCheck is free to download, with no in-app purchases.
Do Intoxalock or aCheck have ads?
Neither Intoxalock nor aCheck shows ads.
Which is updated more often, Intoxalock or aCheck?
Intoxalock ships an update every 2 months, and aCheck every 3 months. Most recently, Intoxalock was updated on September 25, 2026 and aCheck on September 9, 2026.

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