# 研路大川 vs 智教练考研数学HD版

The clearest difference is in-app purchases: 研路大川 at none against 智教练考研数学HD版's 4. 研路大川 also leads on device support (3 vs 1). 智教练考研数学HD版's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 智教练考研数学HD版 sells 4 one-off in-app purchases. 研路大川 asks for nothing beyond the download.

研路大川 ships an update every 2 months, 智教练考研数学HD版 every 2 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 研路大川 | 智教练考研数学HD版 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 161 MB | 44 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京万学教育科技有限公司](https://appshunter.io/developer/1044531538) | [Beijing Zhinengxing Education Technology Co.Ltd](https://appshunter.io/developer/1535179691) |

## What reviewers say

### 研路大川

[App page](https://appshunter.io/ios/app/id1514073932)

**In-app purchases:** none


### 智教练考研数学HD版

[App page](https://appshunter.io/ios/app/hd/id6747038192)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 学习券/ 份 | $0.99 | one-time |
| 30 学习劵/份 | $5.99 | one-time |
| 41 学习劵/份 | $8.99 | one-time |
| 54 学习劵/份 | $9.99 | one-time |


## Frequently asked questions

### Is 研路大川 free?

研路大川 is free to download, with no in-app purchases.

### Is 智教练考研数学HD版 free?

智教练考研数学HD版 is free to download, with in-app purchases available.

### Do 研路大川 or 智教练考研数学HD版 have ads?

Neither 研路大川 nor 智教练考研数学HD版 shows ads.

### Which is updated more often, 研路大川 or 智教练考研数学HD版?

研路大川 ships an update every 2 months, and 智教练考研数学HD版 every 2 weeks. Most recently, 研路大川 was updated on November 3, 2026 and 智教练考研数学HD版 on October 28, 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.*