# Alcohol Sensor vs Kals

The clearest difference is in-app purchases: Alcohol Sensor at none against Kals's 2. Kals's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Kals sells 2 in-app purchases, starting at $4.99 per month. Alcohol Sensor asks for nothing beyond the download.

Alcohol Sensor ships an update every 2 weeks, Kals every 10 days. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Alcohol Sensor | Kals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/alcohol-sensor/id1605629465/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 3.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 124 MB | 52 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ReFleX Wireless Inc.](https://appshunter.io/developer/666581212) | [Abdullah Khan](https://appshunter.io/developer/1841471807) |

## What reviewers say

### Alcohol Sensor

[App page](https://appshunter.io/ios/app/alcohol-sensor/id1605629465)

This app helps businesses manage workplace safety by tracking employee alcohol breath tests. It offers remote monitoring, attendance tracking, and driving logs with real-time alerts and comprehensive reporting. Ensure compliance and a safe work environment with this comprehensive solution.

**Highlights:** Cloud Data Management System, Remote employee monitoring, Attendance tracking, Driving log management, Real-time alerts, Comprehensive reporting

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Kals

[App page](https://appshunter.io/ios/app/kals/id6752874805)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Squared Monthly | $4.99 | per month |
| Squared Yearly | $49.99 | per year |


## Frequently asked questions

### Is Alcohol Sensor free?

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

### Is Kals free?

Kals is free to download, with in-app purchases available.

### Do Alcohol Sensor or Kals have ads?

Alcohol Sensor shows ads; Kals does not.

### Which is updated more often, Alcohol Sensor or Kals?

Alcohol Sensor ships an update every 2 weeks, and Kals every 10 days. Most recently, Alcohol Sensor was updated on October 10, 2026 and Kals on September 30, 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.*