# Diary Star vs 海豚服务

The clearest difference is in-app purchases: 海豚服务 at none against Diary Star's 1. 海豚服务 also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Diary Star sells 1 one-off in-app purchase. 海豚服务 asks for nothing beyond the download.

Diary Star ships an update monthly, 海豚服务 every 3 weeks. The most recent releases landed on October 29, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Diary Star | 海豚服务 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 8 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Chengdu Xingguan Technology Co., Ltd.](https://appshunter.io/developer/998279524) | [慧淋 梁](https://appshunter.io/developer/6785336178) |

## What reviewers say

### Diary Star

[App page](https://appshunter.io/ios/app/diary-star/id6448612043)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $1.99 | one-time |


### 海豚服务

[App page](https://appshunter.io/ios/app/spa/id6465316228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diary Star free?

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

### Is 海豚服务 free?

海豚服务 is free to download, with no in-app purchases.

### Do Diary Star or 海豚服务 have ads?

Neither Diary Star nor 海豚服务 shows ads.

### Which is updated more often, Diary Star or 海豚服务?

Diary Star ships an update monthly, and 海豚服务 every 3 weeks. Most recently, Diary Star was updated on October 29, 2026 and 海豚服务 on September 9, 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.*