# 研大医题库 vs 银成云自习

The clearest difference is update cadence: 研大医题库 at every 4 weeks against 银成云自习's every 6 months. 研大医题库 also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 研大医题库 sells 9 one-off in-app purchases and 银成云自习 sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

研大医题库 ships an update every 4 weeks, 银成云自习 every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 研大医题库 | 银成云自习 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | **Every 4 weeks** | Every 6 months |
| Size | 275 MB | 82 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [Beijing Haidian Research University TrainingSchool](https://appshunter.io/developer/1551767960) | [珊 贺](https://appshunter.io/developer/1521386359) |

## What reviewers say

### 研大医题库

[App page](https://appshunter.io/ios/app/id1537346151)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6元=6库币 | $0.99 | one-time |
| 60元=60库币 | $8.99 | one-time |
| 88元=88库币 | $12.99 | one-time |
| 128元=128个库币 | $19.99 | one-time |
| 188元=188库币 | $27.99 | one-time |
| 288元=288库币 | $45.99 | one-time |
| 488元=488库币 | $74.99 | one-time |
| 698元=698库币 | $109.99 | one-time |
| 998元=998库币 | $149.99 | one-time |


### 银成云自习

[App page](https://appshunter.io/ios/app/id1663697157)

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 您将花费6元人民币购买学习币 | $0.99 | one-time |
| 您将花费18元人民币购买学习币 | $2.99 | one-time |
| 您将花费30元人民币购买学习币 | $4.99 | one-time |
| 您将花费148元人民币购买学习币 | $21.99 | one-time |
| 您将花费288元人民币购买学习币 | $45.99 | one-time |
| 您将花费448元人民币购买学习币 | $69.99 | one-time |
| 您将花费698元人民币购买学习币 | $109.99 | one-time |
| 您将花费1448元人民币购买学习币 | $219.99 | one-time |
| 您将花费2998元人民币购买学习币 | $449.99 | one-time |


## Frequently asked questions

### Is 研大医题库 free?

研大医题库 is free to download, with in-app purchases available.

### Is 银成云自习 free?

银成云自习 is free to download, with in-app purchases available.

### Which is updated more often, 研大医题库 or 银成云自习?

研大医题库 ships an update every 4 weeks, and 银成云自习 every 6 months. Most recently, 研大医题库 was updated on November 3, 2026 and 银成云自习 on November 3, 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.*