# 海上通 vs 潮汐精灵

The clearest difference is review sentiment: 海上通 at 40% against 潮汐精灵's 0%. 海上通 also leads on iOS requirement (9.0 vs 14.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 海上通 sells 3 one-off in-app purchases and 潮汐精灵 sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 海上通 | 潮汐精灵 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/and/id6470182024/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Freemium |
| Size | 61 MB | 27 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [浙江易航海信息技术有限公司](https://appshunter.io/developer/1279218875) | [亚钦 吕](https://appshunter.io/developer/1711747782) |

## What reviewers say

### 海上通

[App page](https://appshunter.io/ios/app/id1174237190)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月卡 | $3.99 | one-time |
| 季卡 | $9.99 | one-time |
| 年卡 | $29.99 | one-time |


### 潮汐精灵

[App page](https://appshunter.io/ios/app/and/id6470182024)

Access real-time tide predictions and weather forecasts for coastal areas. Plan your fishing or beachcombing trips with detailed hourly tide level charts and daily predictions.

**Highlights:** Real-time tide predictions, Coastal city tide information, Daily tide change forecasts, Hourly tide level charts, Weather information

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 尊享高级会员 | $9.99 | per month |


## Frequently asked questions

### Is 海上通 free?

海上通 is free to download, with in-app purchases available.

### Is 潮汐精灵 free?

潮汐精灵 is free to download, with in-app purchases available.

### Do 海上通 or 潮汐精灵 have ads?

Neither 海上通 nor 潮汐精灵 shows ads.

### Which is updated more often, 海上通 or 潮汐精灵?

海上通 ships an update every 2 months, and 潮汐精灵 every 2 months. Most recently, 海上通 was updated on October 26, 2026 and 潮汐精灵 on October 19, 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.*