# Meridian Inside for iOS vs ULINKWORLD

The clearest difference is price: ULINKWORLD at Free against Meridian Inside for iOS's $49.99. ULINKWORLD also leads on update cadence (monthly vs every 5 months). Meridian Inside for iOS's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

ULINKWORLD is free to download; Meridian Inside for iOS costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Meridian Inside for iOS ships an update every 5 months, ULINKWORLD monthly. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Meridian Inside for iOS | ULINKWORLD |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/meridian-inside-for-ios/id885404547/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 38.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Paid | — |
| Size | 502 MB | 99 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Kim June-Hyun](https://appshunter.io/developer/885404550) | [Korust](https://appshunter.io/developer/1112436771) |

## What reviewers say

### Meridian Inside for iOS

[App page](https://appshunter.io/ios/app/meridian-inside-for-ios/id885404547)

Explore the flow of Asian medicine's meridians on a 3D human body model. Visualize 32 meridians, their locations, and flows. Navigate with multi-touch zoom and a drive button bar for easy access to desired information.

**Highlights:** 3D human body model, Visualization of 32 meridians, Meridian flow and location, Multi-touch zoom, Drive button bar for navigation, Integration of Main, Extra, and Divergence Meridians

**Features:** Vision Pro support

**In-app purchases:** none


### ULINKWORLD

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Meridian Inside for iOS free?

Meridian Inside for iOS costs $49.99, with no in-app purchases.

### Is ULINKWORLD free?

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

### Do Meridian Inside for iOS or ULINKWORLD have ads?

Neither Meridian Inside for iOS nor ULINKWORLD shows ads.

### Which is updated more often, Meridian Inside for iOS or ULINKWORLD?

Meridian Inside for iOS ships an update every 5 months, and ULINKWORLD monthly. Most recently, Meridian Inside for iOS was updated on November 11, 2026 and ULINKWORLD on November 6, 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.*