# W vs CarHA

The clearest difference is price: W at Free against CarHA's $4.99. CarHA's advantage is update cadence (weekly vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

W is free to download; CarHA costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

W ships an update every 2 months, CarHA weekly. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | W | CarHA |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 45 MB | 1 MB |
| Requires iOS | **15** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LumenRadio AB](https://appshunter.io/developer/1443137236) | [Veghes Lucian](https://appshunter.io/developer/6779731610) |

## What reviewers say

### W

[App page](https://appshunter.io/ios/app/w-modbus/id6472275984)

**Features:** macOS Compatibility

**In-app purchases:** none


### CarHA

[App page](https://appshunter.io/ios/app/carha/id6779731608)

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

**In-app purchases:** none


## Frequently asked questions

### Is W free?

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

### Is CarHA free?

CarHA costs $4.99, with no in-app purchases.

### Do W or CarHA have ads?

Neither W nor CarHA shows ads.

### Which is updated more often, W or CarHA?

W ships an update every 2 months, and CarHA weekly. Most recently, W was updated on September 24, 2026 and CarHA on September 13, 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.*