# 耶鲁专升本 vs i 开大

The clearest difference is in-app purchases: i 开大 at none against 耶鲁专升本's 10. 耶鲁专升本's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 耶鲁专升本 sells 10 one-off in-app purchases. i 开大 asks for nothing beyond the download.

耶鲁专升本 ships an update every 5 weeks, i 开大 every 3 months. The most recent releases landed on September 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 耶鲁专升本 | i 开大 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 115 MB | 23 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [河南中冠网络科技有限公司](https://appshunter.io/developer/960504595) | [Kaifeng University](https://appshunter.io/developer/1486289863) |

## What reviewers say

### 耶鲁专升本

[App page](https://appshunter.io/ios/app/id960504596)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1元=1学习币 | $0.99 | one-time |
| 3元=3学习币 | $0.99 | one-time |
| 12元=12学习币 | $0.99 | one-time |
| 18元=18学习币 | $0.99 | one-time |
| 25元=25学习币 | $0.99 | one-time |
| 50元=50学习币 | $0.99 | one-time |
| 98元=98学习币 | $0.99 | one-time |
| 198元=198学习币 | $0.99 | one-time |
| 518元=518学习币 | $0.99 | one-time |
| 798元=798学习币 | $0.99 | one-time |


### i 开大

[App page](https://appshunter.io/ios/app/i/id1477281717)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 耶鲁专升本 free?

耶鲁专升本 is free to download, with in-app purchases available.

### Is i 开大 free?

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

### Do 耶鲁专升本 or i 开大 have ads?

Neither 耶鲁专升本 nor i 开大 shows ads.

### Which is updated more often, 耶鲁专升本 or i 开大?

耶鲁专升本 ships an update every 5 weeks, and i 开大 every 3 months. Most recently, 耶鲁专升本 was updated on September 20, 2026 and i 开大 on October 11, 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.*