# 天气预报：精准预报未来气象变化 vs 知潮汐

The clearest difference is price: 天气预报：精准预报未来气象变化 at Free against 知潮汐's $1.99. 天气预报：精准预报未来气象变化 also leads on iOS requirement (13.0 vs 17.0). 知潮汐's advantage is in-app purchases (none vs 3) and review sentiment (67% vs 33%). On update cadence, ads and device support there is nothing between them.

天气预报：精准预报未来气象变化 is free to download; 知潮汐 costs $1.99 up front. 天气预报：精准预报未来气象变化 sells 3 in-app purchases, starting at $3.99 per 7 days. 知潮汐 asks for nothing beyond the download.

天气预报：精准预报未来气象变化 ships an update every 2 days, 知潮汐 every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 天气预报：精准预报未来气象变化 | 知潮汐 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 33.3% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Size | 42 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [正雅 陈](https://appshunter.io/developer/1720985139) | [江山 王](https://appshunter.io/developer/1502751411) |

## What reviewers say

### 天气预报：精准预报未来气象变化

[App page](https://appshunter.io/ios/app/id6499493513)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $5.99 | one-time |
| 年会员 | $14.99 | one-time |


### 知潮汐

[App page](https://appshunter.io/ios/app/id6767303169)

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

**In-app purchases:** none


## Frequently asked questions

### Is 天气预报：精准预报未来气象变化 free?

天气预报：精准预报未来气象变化 is free to download, with in-app purchases available.

### Is 知潮汐 free?

知潮汐 costs $1.99, with no in-app purchases.

### Do 天气预报：精准预报未来气象变化 or 知潮汐 have ads?

Neither 天气预报：精准预报未来气象变化 nor 知潮汐 shows ads.

### Which is updated more often, 天气预报：精准预报未来气象变化 or 知潮汐?

天气预报：精准预报未来气象变化 ships an update every 2 days, and 知潮汐 every 3 days. Most recently, 天气预报：精准预报未来气象变化 was updated on October 30, 2026 and 知潮汐 on October 31, 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.*