# 柠檬树课堂 vs Night‑Vision

The clearest difference is device support: Night‑Vision at 2 against 柠檬树课堂's —. 柠檬树课堂's advantage is iOS requirement (9.0 vs 15.6). On price and in-app purchases there is nothing between them.

Both are free to download. 柠檬树课堂 sells 10 one-off in-app purchases and Night‑Vision sells 1 in-app purchase, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 柠檬树课堂 | Night‑Vision |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Size | 70 MB | 32 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [江苏乐学在线智能科技有限公司](https://appshunter.io/developer/1645813629) | [燕燕 林](https://appshunter.io/developer/1675436596) |

## What reviewers say

### 柠檬树课堂

[App page](https://appshunter.io/ios/app/id6444359392)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6个乐钻 | $0.99 | one-time |
| 18个乐钻 | $2.99 | one-time |
| 68个乐钻 | $9.99 | one-time |
| 118个乐钻 | $17.99 | one-time |
| 318个乐钻 | $48.99 | one-time |
| 518个乐钻 | $79.99 | one-time |
| 818个乐钻 | $124.99 | one-time |
| 1398个乐钻 | $209.99 | one-time |
| 1998个乐钻 | $299.99 | one-time |
| 2298个乐钻 | $349.99 | one-time |


### Night‑Vision

[App page](https://appshunter.io/ios/app/nightvision-camera/id6787823785)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Night‑Vision Premium | $1.99 | per 7 days |


## Frequently asked questions

### Is 柠檬树课堂 free?

柠檬树课堂 is free to download, with in-app purchases available.

### Is Night‑Vision free?

Night‑Vision is free to download, with in-app purchases available.

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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.*