# 知到教师版 vs 小绿鲸英文文献阅读器（平板）

The clearest difference is in-app purchases: 小绿鲸英文文献阅读器（平板） at none against 知到教师版's 7. 知到教师版's advantage is review sentiment (33% vs 0%) and update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 知到教师版 sells 7 one-off in-app purchases. 小绿鲸英文文献阅读器（平板） asks for nothing beyond the download.

知到教师版 ships an update every 3 weeks, 小绿鲸英文文献阅读器（平板） every 6 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 知到教师版 | 小绿鲸英文文献阅读器（平板） |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/id6450911529/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 299 MB | 84 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [上海卓越睿新数码科技有限公司](https://appshunter.io/developer/702650874) | [见鲸科技(南京)有限公司](https://appshunter.io/developer/1695096543) |

## What reviewers say

### 知到教师版

[App page](https://appshunter.io/ios/app/id1053782684)

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6知点礼包 | $0.99 | one-time |
| 30知点礼包 | $4.99 | one-time |
| 68知点礼包 | $9.99 | one-time |
| 108知点礼包 | $15.99 | one-time |
| 268知点礼包 | $41.99 | one-time |
| 智慧树教师圈师说VIP会员(年卡) | $59.99 | one-time |
| 618知点礼包 | $94.99 | one-time |


### 小绿鲸英文文献阅读器（平板）

[App page](https://appshunter.io/ios/app/id6450911529)

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

**In-app purchases:** none


## Frequently asked questions

### Is 知到教师版 free?

知到教师版 is free to download, with in-app purchases available.

### Is 小绿鲸英文文献阅读器（平板） free?

小绿鲸英文文献阅读器（平板） is free to download, with no in-app purchases.

### Do 知到教师版 or 小绿鲸英文文献阅读器（平板） have ads?

Neither 知到教师版 nor 小绿鲸英文文献阅读器（平板） shows ads.

### Which is updated more often, 知到教师版 or 小绿鲸英文文献阅读器（平板）?

知到教师版 ships an update every 3 weeks, and 小绿鲸英文文献阅读器（平板） every 6 weeks. Most recently, 知到教师版 was updated on October 7, 2026 and 小绿鲸英文文献阅读器（平板） on October 24, 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.*