# Lutra vs 傾到夜深

The clearest difference is in-app purchases: Lutra at none against 傾到夜深's 1. Lutra also leads on ads (none vs shown) and device support (3 vs 1). 傾到夜深's advantage is update cadence (every 4 days vs every 3 weeks). On price there is nothing between them.

Both are free to download. 傾到夜深 sells 1 one-off in-app purchase. Lutra asks for nothing beyond the download.

Lutra ships an update every 3 weeks, 傾到夜深 every 4 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lutra | 傾到夜深 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 46 MB | 103 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Mr. Chi Technology Co., Ltd.](https://appshunter.io/developer/1826530848) | [Creasant Innovision Limited](https://appshunter.io/developer/1098066469) |

## What reviewers say

### Lutra

[App page](https://appshunter.io/ios/app/lutra/id6749300413)

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

**In-app purchases:** none


### 傾到夜深

[App page](https://appshunter.io/ios/app/id6775702222)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 傾到夜深-情侶版 完整內容 | $4.99 | one-time |


## Frequently asked questions

### Is Lutra free?

Lutra is free to download, with no in-app purchases.

### Is 傾到夜深 free?

傾到夜深 is free to download, with in-app purchases available.

### Do Lutra or 傾到夜深 have ads?

傾到夜深 shows ads; Lutra does not.

### Which is updated more often, Lutra or 傾到夜深?

Lutra ships an update every 3 weeks, and 傾到夜深 every 4 days. Most recently, Lutra was updated on October 9, 2026 and 傾到夜深 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.*