# Link Cluster vs 4DI

The clearest difference is in-app purchases: 4DI at none against Link Cluster's 1. 4DI also leads on update cadence (every 3 days vs every 3 months). Link Cluster's advantage is device support (4 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Link Cluster sells 1 one-off in-app purchase. 4DI asks for nothing beyond the download.

Link Cluster ships an update every 3 months, 4DI every 3 days. The most recent releases landed on September 17, 2026 and August 30, 2026 respectively.

## The numbers

| Metric | Link Cluster | 4DI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/link-cluster/id6443942506/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 75.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 19 MB | 4 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Daniel Witt](https://appshunter.io/developer/1438848391) | [Robert Poetzsch](https://appshunter.io/developer/1860642630) |

## What reviewers say

### Link Cluster

[App page](https://appshunter.io/ios/app/link-cluster/id6443942506)

Organize and manage your web links with automatic enrichment and cross-device syncing. Categorize links into clusters, add notes, and archive content for offline access. Seamlessly integrates across all Apple devices.

**Highlights:** Link clustering and organization, Automatic link enrichment (images, descriptions), Offline archiving of web content, iCloud sync across Apple devices, Built-in web browser, Export links as PDF, webarchive, and more, Import bookmarks from other browsers

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


### 4DI

[App page](https://appshunter.io/ios/app/4di-data-integrity-tool/id6760180866)

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

**In-app purchases:** none


## Frequently asked questions

### Is Link Cluster free?

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

### Is 4DI free?

4DI is free to download, with no in-app purchases.

### Do Link Cluster or 4DI have ads?

Neither Link Cluster nor 4DI shows ads.

### Which is updated more often, Link Cluster or 4DI?

Link Cluster ships an update every 3 months, and 4DI every 3 days. Most recently, Link Cluster was updated on September 17, 2026 and 4DI on August 30, 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.*