DDU vs Perio Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DDU
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.
- 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
Read full descriptionHide full description
As a dental professional, you can access expert advice from the Dental Defence Union (DDU). Read the latest dento-legal advice on patient confidentiality, consent, communication, police investigations and how to respond to patient complaints, and much more. Search our extensive range of quick guides, case studies, frequently asked questions and articles from our popular DDU Journal. You can tailor your news feed to show topics you’re interested in, read offline and get help with your membership and view your membership card. Download the DDU app now for top dento-legal advice wherever you go.
Perio Brain
This app assists dental professionals in classifying periodontal disease using assessment values. It helps dentists and students formulate quicker diagnoses and treatment plans based on current guidance.
- Periodontitis diagnosis formulation
- Periodontal disease classification
- Evidence-based diagnostic tool
- Treatment planning assistance
- Utilizes latest published guidance
Read full descriptionHide full description
Need a quick and easy way to formulate a periodontitis diagnosis? The Perio Brain App enables dental practitioners to classify periodontal disease using values from a periodontal assessment. Using the latest published guidance, the Perio Brain app is designed to help all dentists, dental professionals and dental students become more familiar with making a periodontitis diagnosis and to formulate a quicker classification. The Perio Brain app has been designed to provide qualified dental professionals with an evidence-based tool to diagnose and/or plan treatment. Medical terminology is introduced without detailed explanations, which may be misunderstood by non-healthcare professionals. It is not designed for the general public and therefore should not be used without first seeking advice from a dental professional.
Screenshots
Verdict
The clearest difference is review sentiment: DDU at 100% against Perio Brain's 92%. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 13, 2026 and September 22, 2026 respectively.
| Parameter | DDU | Perio Brain |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (35 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 91.7% of reviews |
| Number of ratings | — | 35 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 165 MB | 50 MB |
| Age rating | 4+ | 17+ |
| Developer | The Medical Defence Union | SHO Me Digital Ltd |
Customer experience
DDU
Perio Brain
In-app purchases
DDU
No in-app purchases
Perio Brain
No in-app purchases
