# 듀리안 vs 4피트

The clearest difference is in-app purchases: 듀리안 at none against 4피트's 4. 듀리안 also leads on ads (none vs shown). 4피트's advantage is update cadence (every 2 weeks vs every 4 months) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. 4피트 sells 4 one-off in-app purchases. 듀리안 asks for nothing beyond the download.

듀리안 ships an update every 4 months, 4피트 every 2 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 듀리안 | 4피트 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 40 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Hana Kim](https://appshunter.io/developer/1850236551) | [Changyeon kim](https://appshunter.io/developer/1651614178) |

## What reviewers say

### 듀리안

[App page](https://appshunter.io/ios/app/ai/id6754876076)

Discover your relationship tendencies through conversations with an AI friend. This self-exploration service helps you understand your romantic style and relationship patterns by analyzing your responses to daily questions.

**Highlights:** AI friend conversations, Relationship tendency analysis, Continuous insights, Self-exploration through dialogue, Understanding relationship patterns

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

**In-app purchases:** none


### 4피트

[App page](https://appshunter.io/ios/app/4-sns/id6757948977)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 포인트 | $0.49 | one-time |
| 60 포인트 | $2.99 | one-time |
| 140 포인트 | $6.99 | one-time |
| 450 포인트 | $19.99 | one-time |


## Frequently asked questions

### Is 듀리안 free?

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

### Is 4피트 free?

4피트 is free to download, with in-app purchases available.

### Do 듀리안 or 4피트 have ads?

4피트 shows ads; 듀리안 does not.

### Which is updated more often, 듀리안 or 4피트?

듀리안 ships an update every 4 months, and 4피트 every 2 weeks. Most recently, 듀리안 was updated on October 8, 2026 and 4피트 on October 4, 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.*