# DDU vs JawSpace

The clearest difference is in-app purchases: DDU at none against JawSpace's 4. DDU also leads on iOS requirement (12.2 vs 17.6). JawSpace's advantage is update cadence (every 3 weeks vs every 3 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. JawSpace sells 4 in-app purchases, starting at $14.99 per month. DDU asks for nothing beyond the download.

DDU ships an update every 3 months, JawSpace every 3 weeks. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | DDU | JawSpace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jawspace-your-tmd-journey/id1665850708/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 165 MB | 130 MB |
| Requires iOS | **12.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [The Medical Defence Union](https://appshunter.io/developer/1335570468) | [Jawspace Pty Ltd](https://appshunter.io/developer/1665850710) |

## 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


### JawSpace

[App page](https://appshunter.io/ios/app/jawspace-your-tmd-journey/id1665850708)

This platform offers evidence-based tools for self-managing jaw and facial discomfort associated with Temporomandibular Disorders (TMD/TMJ). It provides guided exercises, symptom tracking, and habit-building routines to support your self-care journey.

**Highlights:** Guided exercises for jaw mobility and relaxation, Symptom tracking and trend analysis, Daily routine and habit formation tools, On-demand relief strategies, Evidence-informed content library, Speechify audio integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $14.99 | per month |
| Quarterly (3 months) | $34.99 | per 3 months |
| Annual (Yearly) | $119.99 | per year |
| Lifetime membership | $209.99 | one-time |


## Frequently asked questions

### Is DDU free?

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

### Is JawSpace free?

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

### Do DDU or JawSpace have ads?

Neither DDU nor JawSpace shows ads.

### Which is updated more often, DDU or JawSpace?

DDU ships an update every 3 months, and JawSpace every 3 weeks. Most recently, DDU was updated on September 13, 2026 and JawSpace on September 15, 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.*