# Intoxalock vs aCheck

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.

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 28, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Intoxalock | aCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (893 ratings)](https://appshunter.io/ios/app/intoxalock/id1451778682/reviews)** | — |
| Number of ratings | **893** | — |
| Positive reviews | 5.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 116 MB | 28 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Consumer Safety Technology, LLC](https://appshunter.io/developer/1451778681) | [Attenti Group](https://appshunter.io/developer/1351404812) |

## What reviewers say

### Intoxalock

[App page](https://appshunter.io/ios/app/intoxalock/id1451778682)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient app features
- ⏱️ Time-saving features
- 🔒 Responsive customer support

**What reviewers complain about**

- 💰 Excessive hidden fees
- 🔋 Battery draining device
- 🔧 Frequent device malfunctions
- ⏰ Dangerous driving distractions
- 🤖 Poor customer service

**Reported bugs**

- App login issues
- Unreliable device performance
- Inconsistent lockout policies

**Requested features**

- Bluetooth test notifications
- Improved app functionality
- Transparent pricing information


### aCheck

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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 28, 2026 and aCheck on September 9, 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.*