# 小汽车胎压 vs D

The clearest difference is update cadence: D at every 5 days against 小汽车胎压's every 4 weeks. 小汽车胎压's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

小汽车胎压 ships an update every 4 weeks, D every 5 days. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 小汽车胎压 | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Size | 39 MB | 33 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Elink Things Co., Ltd](https://appshunter.io/developer/1538561642) | [LUN LIU](https://appshunter.io/developer/1890125123) |

## What reviewers say

### 小汽车胎压

[App page](https://appshunter.io/ios/app/id1480369820)

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-sync-ecu/id6761677479)

**In-app purchases:** none


## Frequently asked questions

### Is 小汽车胎压 free?

小汽车胎压 is free to download, with no in-app purchases.

### Is D free?

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

### Do 小汽车胎压 or D have ads?

Neither 小汽车胎压 nor D shows ads.

### Which is updated more often, 小汽车胎压 or D?

小汽车胎压 ships an update every 4 weeks, and D every 5 days. Most recently, 小汽车胎压 was updated on October 14, 2026 and D 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.*