# iCity · 我的日记 vs SundAi

The clearest difference is monetization model: SundAi at free with in-app purchases against iCity · 我的日记's subscription. iCity · 我的日记's advantage is ratings volume (1.1K vs 4) and rating (4.8 vs 4.5). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. iCity · 我的日记 sells 5 in-app purchases, starting at $2.99 per month and SundAi sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

iCity · 我的日记 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: iCity · 我的日记 has 1.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 85% of iCity · 我的日记's written reviews are positive against 80% of SundAi's.

iCity · 我的日记 ships an update monthly, SundAi every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iCity · 我的日记 | SundAi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.1K ratings)](https://appshunter.io/ios/app/icity/id1067532514/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/sundai-aimv/id6657961084/reviews) |
| Number of ratings | **1.1K** | 4 |
| Positive reviews | **85.5% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 151 MB | 45 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iDaily Corp.](https://appshunter.io/developer/364264742) | [Xiamen Jiashizi Network Technology Co., Ltd](https://appshunter.io/developer/1707828323) |

## What reviewers say

### iCity · 我的日记

[App page](https://appshunter.io/ios/app/icity/id1067532514)

This app provides a private digital space for journaling, sharing moments with close friends, and discovering new connections through shared interests. It offers a personal profile with Q&A and a world exploration feature to find like-minded individuals.

**Highlights:** Private journaling with text and images, Shared journaling with close friends, Personal profile with Q&A, Discover friends through Q&A matching, Explore world channels for connections

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iCity Pro · 月度会员 | $2.99 | per month |
| iCity Pro · 年度会员 | $14.99 | per year |
| 邮箱卡 | $2.99 | one-time |
| 转生卡 · iCity Pro 专享 | $9.99 | one-time |
| 转生卡 | $14.99 | one-time |

**What reviewers like**

- 👍 Minimalist and clean design
- 🙌 Supportive community
- 📝 Convenient for personal journaling
- 💻 Accessible web version
- 🔒 Sense of privacy and anonymity

**What reviewers complain about**

- 🐛 Occasional upload issues
- 📹 Lack of video upload functionality
- 🔍 Difficulty finding/accessing user profiles
- 🔧 Limited customization options
- 💻 Suboptimal tablet/desktop experience

**Reported bugs**

- Unable to send messages to friends
- Diary entries disappearing after posting
- Registration/login issues for some users

**Requested features**

- Add video upload capability
- Implement user profile customization
- Improve tablet/desktop optimization
- Introduce a dark mode option
- Add sharing/reposting functionality


### SundAi

[App page](https://appshunter.io/ios/app/sundai-aimv/id6657961084)

Generate original songs with AI based on your creative descriptions. This tool simplifies music creation, allowing anyone to produce unique tracks from their ideas. Start your songwriting journey effortlessly.

**Highlights:** AI song generation, Text-to-music creation, Creative inspiration input, Music production tool, Effortless songwriting

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 原创证明 | $0.99 | one-time |
| 300积分 | $9.99 | one-time |
| 500积分 | $12.99 | one-time |
| 季度会员 | $14.99 | one-time |
| 年会员 | $19.99 | one-time |
| 1000积分 | $19.99 | one-time |
| 永久会员 | $29.99 | one-time |
| 2000积分 | $29.99 | one-time |
| 5000积分 | $69.99 | one-time |


## Frequently asked questions

### Is iCity · 我的日记 free?

iCity · 我的日记 is free to download, with in-app purchases available.

### Is SundAi free?

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

### Which has better reviews, iCity · 我的日记 or SundAi?

iCity · 我的日记 is rated higher. iCity · 我的日记 averages 4.8 out of 5 from 1.1K ratings, while SundAi averages 4.5 from 4 ratings.

### Do iCity · 我的日记 or SundAi have ads?

Neither iCity · 我的日记 nor SundAi shows ads.

### Which is updated more often, iCity · 我的日记 or SundAi?

iCity · 我的日记 ships an update monthly, and SundAi every 2 weeks. Most recently, iCity · 我的日记 was updated on October 30, 2026 and SundAi on October 24, 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.*