# 養魚日記 vs ReefDrift

The clearest difference is iOS requirement: 養魚日記 at 15.0 against ReefDrift's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 養魚日記 sells 1 one-off in-app purchase and ReefDrift sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 養魚日記 | ReefDrift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 114 MB | 16 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chin-Hong Lin](https://appshunter.io/developer/1401444972) | [Muge Akalin](https://appshunter.io/developer/1701314808) |

## What reviewers say

### 養魚日記

[App page](https://appshunter.io/ios/app/id6746466026)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 廣告去除 | $4.99 | one-time |


### 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 養魚日記 free?

養魚日記 is free to download, with in-app purchases available.

### Is ReefDrift free?

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

### Do 養魚日記 or ReefDrift have ads?

Both 養魚日記 and ReefDrift show ads.

### Which is updated more often, 養魚日記 or ReefDrift?

養魚日記 ships an update every 2 weeks, and ReefDrift every 2 weeks. Most recently, 養魚日記 was updated on October 5, 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.*