# DDU vs Clin Sync

The clearest difference is update cadence: Clin Sync at every 10 days against DDU's every 3 months. DDU's advantage is iOS requirement (12.2 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DDU ships an update every 3 months, Clin Sync every 10 days. The most recent releases landed on September 13, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | DDU | Clin Sync |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 165 MB | 89 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [The Medical Defence Union](https://appshunter.io/developer/1335570468) | [Clin-Sync Limited](https://appshunter.io/developer/1817596284) |

## What reviewers say

### DDU

[App page](https://appshunter.io/ios/app/ddu/id1335607491)

Access expert dento-legal advice for dental professionals. Find guidance on patient confidentiality, consent, complaints, and more through articles, case studies, and quick guides. Customize your feed and read offline.

**Highlights:** Expert dento-legal advice, Patient confidentiality guidance, Consent and communication advice, Response to patient complaints, Quick guides and case studies, Offline reading capability, Customizable news feed

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

**In-app purchases:** none


### Clin Sync

[App page](https://appshunter.io/ios/app/clin-sync/id6746637616)

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

**In-app purchases:** none


## Frequently asked questions

### Is DDU free?

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

### Is Clin Sync free?

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

### Do DDU or Clin Sync have ads?

Neither DDU nor Clin Sync shows ads.

### Which is updated more often, DDU or Clin Sync?

DDU ships an update every 3 months, and Clin Sync every 10 days. Most recently, DDU was updated on September 13, 2026 and Clin Sync on September 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.*