# 知稻 vs 节水抗旱稻

The clearest difference is update cadence: 节水抗旱稻 at daily against 知稻's every 3 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

知稻 ships an update every 3 days, 节水抗旱稻 daily. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 知稻 | 节水抗旱稻 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Size | 48 MB | 70 MB |
| Requires iOS | 10.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 17+ |
| Developer | [China National Rice Research Institute](https://appshunter.io/developer/1635504306) | [北京爱科农科技有限公司](https://appshunter.io/developer/1457549427) |

## What reviewers say

### 知稻

[App page](https://appshunter.io/ios/app/id1635504304)

**Features:** macOS Compatibility

**In-app purchases:** none


### 节水抗旱稻

[App page](https://appshunter.io/ios/app/id6475710052)

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

**In-app purchases:** none


## Frequently asked questions

### Is 知稻 free?

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

### Is 节水抗旱稻 free?

节水抗旱稻 is free to download, with no in-app purchases.

### Do 知稻 or 节水抗旱稻 have ads?

Neither 知稻 nor 节水抗旱稻 shows ads.

### Which is updated more often, 知稻 or 节水抗旱稻?

知稻 ships an update every 3 days, and 节水抗旱稻 daily. Most recently, 知稻 was updated on October 3, 2026 and 节水抗旱稻 on October 6, 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.*