# 行车SOS vs H

The clearest difference is iOS requirement: 行车SOS at 9.0 against H's 11.0. 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.

行车SOS ships an update fortnightly, H every 4 weeks. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 行车SOS | H |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Size | 63 MB | 141 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangdong Ecarservice Ltd](https://appshunter.io/developer/490592913) | [深圳市小辉智驾智能有限公司](https://appshunter.io/developer/1630307623) |

## What reviewers say

### 行车SOS

[App page](https://appshunter.io/ios/app/sos/id1229586535)

**Features:** macOS Compatibility

**In-app purchases:** none


### H

[App page](https://appshunter.io/ios/app/h-auto/id6670363670)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 行车SOS free?

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

### Is H free?

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

### Do 行车SOS or H have ads?

Neither 行车SOS nor H shows ads.

### Which is updated more often, 行车SOS or H?

行车SOS ships an update fortnightly, and H every 4 weeks. Most recently, 行车SOS was updated on October 3, 2026 and H 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.*