# 海缸小幫手 vs ReefDrift

The clearest difference is in-app purchases: 海缸小幫手 at none against ReefDrift's 3. 海缸小幫手 also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. ReefDrift sells 3 in-app purchases, starting at $3.99 per month. 海缸小幫手 asks for nothing beyond the download.

海缸小幫手 ships an update every 9 days, ReefDrift every 2 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 海缸小幫手 | ReefDrift |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Size | 17 MB | 16 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gino Liu](https://appshunter.io/developer/1563359497) | [Muge Akalin](https://appshunter.io/developer/1701314808) |

## What reviewers say

### 海缸小幫手

[App page](https://appshunter.io/ios/app/id1400877195)

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

**In-app purchases:** none


### ReefDrift

[App page](https://appshunter.io/ios/app/reefdrift-reef-parameter-log/id6775145577)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReefDrift Pro Monthly | $3.99 | per month |
| ReefDrift Pro Yearly | $19.99 | per year |
| ReefDrift Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is 海缸小幫手 free?

海缸小幫手 is free to download, with no in-app purchases.

### Is ReefDrift free?

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

### Do 海缸小幫手 or ReefDrift have ads?

ReefDrift shows ads; 海缸小幫手 does not.

### Which is updated more often, 海缸小幫手 or ReefDrift?

海缸小幫手 ships an update every 9 days, and ReefDrift every 2 weeks. Most recently, 海缸小幫手 was updated on October 2, 2026 and ReefDrift on October 10, 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.*