# ULINKWORLD vs 맘찌 AI

The clearest difference is in-app purchases: ULINKWORLD at none against 맘찌 AI's 5. ULINKWORLD also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. 맘찌 AI sells 5 in-app purchases, starting at $4.99 per month. ULINKWORLD asks for nothing beyond the download.

ULINKWORLD ships an update monthly, 맘찌 AI every 3 weeks. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ULINKWORLD | 맘찌 AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 92.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Subscription |
| Size | 100 MB | 42 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Korust](https://appshunter.io/developer/1112436771) | [YONGSUB YOON](https://appshunter.io/developer/1567803765) |

## What reviewers say

### ULINKWORLD

[App page](https://appshunter.io/ios/app/ulinkworld/id1119454582)

**Features:** macOS Compatibility

**In-app purchases:** none


### 맘찌 AI

[App page](https://appshunter.io/ios/app/ai/id6742169293)

Get accurate pregnancy, childbirth, and parenting advice from AI characters based on expert medical information. Ask questions and receive helpful guidance from pediatric and OB/GYN doctor characters.

**Highlights:** AI-powered medical advice, Pregnancy, childbirth, and parenting focus, Pediatrician and OB/GYN doctor characters, Information based on 3,000+ expert videos, Automated subscription renewal, Free trial periods available

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 맘찌 월간 프로 | $4.99 | per month |
| 맘찌 월간 프로 | $5.99 | per month |
| 맘찌 연간 프로 | $24.99 | per year |
| 맘찌 연간 프로 | $39.99 | per year |
| AI 육아 백과 사전 | $17.99 | one-time |


## Frequently asked questions

### Is ULINKWORLD free?

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

### Is 맘찌 AI free?

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

### Do ULINKWORLD or 맘찌 AI have ads?

Neither ULINKWORLD nor 맘찌 AI shows ads.

### Which is updated more often, ULINKWORLD or 맘찌 AI?

ULINKWORLD ships an update monthly, and 맘찌 AI every 3 weeks. Most recently, ULINKWORLD was updated on October 14, 2026 and 맘찌 AI on October 16, 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.*