Dermos vs Derm DDx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dermos
Contribute to life-saving research by submitting photos of skin lesions. This app helps train an AI for accurate skin condition identification. Your submissions aid in developing a powerful diagnostic tool.
- Submit skin lesion photos
- Train AI for accuracy
- Contribute to medical research
- Help save lives
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Help us save lives first by collecting photos! In the first version of our app, we’re collecting photos of skin lesions to help train our AI to be the most accurate in the world. Help us save lives by submitting your photo now!
Derm DDx
This app provides visual, point-of-care guidance for diagnosing skin disorders. It features a large database of high-resolution images, allowing users to compare variations, zoom in, and access clinical history and treatment options for over 160 dermatologic conditions.
- 650+ high-quality dermatology images
- Guidance for 160+ dermatologic conditions
- Side-by-side image variations
- Zoomable high-resolution images
- Clinical history and treatment options
- Cross-referencing to differential diagnoses
- Full text search and custom notes
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The Dermatology DDx app from Unbound Medicine delivers visual, point-of-care guidance for establishing the diagnosis of skin disorders. This powerful, photo-intensive database allows users to search, view side-by-side variations of each skin disorder, easily zoom in on any of the high-resolution images, and instantly link to similar conditions to ensure accurate diagnosis. Each entry also contains clinical history, physical findings, and treatment options. Features of Dermatology DDx include: • 650+ high-quality images presented with common variations in presentation • Point-of-care guidance for 160+ dermatologic conditions • Cross reference links to differential diagnoses • History and treatment within each entry • Appendix charting potencies of topical steroids • Highlight and make custom notes within entries • Full Text Search to find topics quickly • Favorites for ’bookmarking’ important entries Authors: by James G. Dinulos MD, M. Shane Chapman MD, Andrew Eugene Werchniak MD, Dorothea T. Barton MD, Thomas P. Habif MD Publisher: Elsevier Powered by: Unbound Medicine Unbound Privacy Policy: www.unboundmedicine.com/privacy Unbound Terms of Use: https://www.unboundmedicine.com/end_user_license_agreement
Screenshots
Verdict
The clearest difference is rating: Derm DDx at 4.3 against Dermos's 3.7. Dermos's advantage is in-app purchases (none vs 1). On price, ratings volume, update cadence and ads 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. Derm DDx sells 1 one-off in-app purchase. Dermos asks for nothing beyond the download.
Derm DDx holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 3 and 6 respectively.
Dermos ships an update every 3 months, Derm DDx every 5 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.
| Parameter | Dermos | Derm DDx |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 4.3 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 | 6 — better |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | Dermos LLC | Unbound Medicine, Inc. |
Customer experience
Dermos
Derm DDx
In-app purchases
Dermos
No in-app purchases
Derm DDx
- Dermatology DDx$69.99
