# SOBRDRIVE vs Child Support Calculator (CA)

The clearest difference is update cadence: SOBRDRIVE at monthly against Child Support Calculator (CA)'s every 24 months. Child Support Calculator (CA)'s advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

SOBRDRIVE ships an update monthly, Child Support Calculator (CA) every 24 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | SOBRDRIVE | Child Support Calculator (CA) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 24 months |
| Monetization | Free | — |
| Size | 34 MB | 28 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Driven By Safety Inc.](https://appshunter.io/developer/720808698) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### SOBRDRIVE

[App page](https://appshunter.io/ios/app/sobrdrive/id1518000597)

This personal BAC monitoring system aids in preventing drunk driving and underage drinking. It combines accurate breathalyzer technology with data capture and sharing for comprehensive prevention programs.

**Highlights:** Personal BAC monitoring, Drunk driving prevention, Underage drinking prevention, Fuel-cell breathalyzer technology, Comprehensive data capture and sharing

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

**In-app purchases:** none


### Child Support Calculator (CA)

[App page](https://appshunter.io/ios/app/child-support-calculator-ca/id6670748572)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SOBRDRIVE free?

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

### Is Child Support Calculator (CA) free?

Child Support Calculator (CA) is free to download, with no in-app purchases.

### Do SOBRDRIVE or Child Support Calculator (CA) have ads?

Neither SOBRDRIVE nor Child Support Calculator (CA) shows ads.

### Which is updated more often, SOBRDRIVE or Child Support Calculator (CA)?

SOBRDRIVE ships an update monthly, and Child Support Calculator (CA) every 24 months. Most recently, SOBRDRIVE was updated on October 24, 2026 and Child Support Calculator (CA) on October 24, 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.*