# 车管司机端 vs SubSum

The clearest difference is iOS requirement: 车管司机端 at 15.6 against SubSum's 17. 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.

Both ship on a similar rhythm, roughly every 4 months. Both last shipped on October 12, 2026.

## The numbers

| Metric | 车管司机端 | SubSum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Size | 38 MB | 2 MB |
| Requires iOS | **15.6** | 17 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Inner Mongolia Yili Industrial Group Company Limited](https://appshunter.io/developer/710173327) | [桥 汪](https://appshunter.io/developer/1658027527) |

## What reviewers say

### 车管司机端

[App page](https://appshunter.io/ios/app/id1377580491)

**Features:** Vision Pro support

**In-app purchases:** none


### SubSum

[App page](https://appshunter.io/ios/app/subsum/id6754885566)

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

**In-app purchases:** none


## Frequently asked questions

### Is 车管司机端 free?

车管司机端 is free to download, with no in-app purchases.

### Is SubSum free?

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

### Do 车管司机端 or SubSum have ads?

Neither 车管司机端 nor SubSum shows ads.

### Which is updated more often, 车管司机端 or SubSum?

车管司机端 ships an update every 4 months, and SubSum every 4 months. Most recently, 车管司机端 was updated on October 12, 2026 and SubSum on October 12, 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.*