# CHM阅读器专业版 vs 车辆查询车况宝

The clearest difference is update cadence: CHM阅读器专业版 at every 10 days against 车辆查询车况宝's every 10 months. 车辆查询车况宝's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CHM阅读器专业版 sells 3 in-app purchases, starting at $1.99 per month and 车辆查询车况宝 sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

CHM阅读器专业版 ships an update every 10 days, 车辆查询车况宝 every 10 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CHM阅读器专业版 | 车辆查询车况宝 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 10 months |
| Monetization | Paid | — |
| Size | 7 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [宁伟 陈](https://appshunter.io/developer/1801975672) | [Sichuan future Three Kingdoms Enterprise Management Consulting Co., Ltd](https://appshunter.io/developer/1584626609) |

## What reviewers say

### CHM阅读器专业版

[App page](https://appshunter.io/ios/app/chm/id6746235244)

Easily view CHM files on your iPhone or iPad. This professional reader supports opening documents from various sources, offers quick navigation via table of contents, and includes full-text search. Enjoy comfortable reading with Dark Mode support.

**Highlights:** Open CHM files from Files, Mail, Safari, Automatic table of contents parsing, Full-text search, Dark Mode support, View help documents and tech manuals

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $1.99 | per month |
| 年度会员 | $9.99 | per year |
| 永久会员 | $12.99 | one-time |


### 车辆查询车况宝

[App page](https://appshunter.io/ios/app/id6749226977)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 测试订阅 | $1.99 | per year |
| 汽车查询订阅测试 | $2.99 | per year |


## Frequently asked questions

### Is CHM阅读器专业版 free?

CHM阅读器专业版 is free to download, with in-app purchases available.

### Is 车辆查询车况宝 free?

车辆查询车况宝 is free to download, with in-app purchases available.

### Do CHM阅读器专业版 or 车辆查询车况宝 have ads?

Neither CHM阅读器专业版 nor 车辆查询车况宝 shows ads.

### Which is updated more often, CHM阅读器专业版 or 车辆查询车况宝?

CHM阅读器专业版 ships an update every 10 days, and 车辆查询车况宝 every 10 months. Most recently, CHM阅读器专业版 was updated on October 24, 2026 and 车辆查询车况宝 on October 8, 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.*