Model Dermatol vs Derm DDx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Model Dermatol
This AI-powered tool analyzes skin photos to find relevant medical information on potential conditions like warts, melanoma, and rashes. It links to authoritative resources and can classify 186 different skin issues, though it is not a diagnostic app.
- AI-powered photo analysis
- Searches medical documents
- Identifies common skin disorders
- Classifies 186 skin conditions
- Links to authoritative resources
- Free to use
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This app brings together skin images and short summaries based on Wikipedia and PubMed, covering common conditions such as acne, eczema, psoriasis, urticaria, fungal infections, and skin cancer including melanoma. The content is kept brief and practical. You can also learn through quizzes on skin cancer and fungal nail infections, and compare your results with those of the general public, medical professionals, and users from different countries. The app is free to use with no ads. The cropped photograph is transferred for cloud analysis, however, we do NOT store your images. * Key Features Skin condition image atlas Practical summaries focused on key points Images and references from Wikipedia and PubMed Quizzes for learning and self-assessment Image-based AI search * Disclaimer It is not intended for diagnosis or medical use. This app is for educational and informational purposes only. Always consult a qualified healthcare professional for medical advice. Image-based search results are for reference only and do not replace in-person evaluation.
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 in-app purchases: Model Dermatol at none against Derm DDx's 1. Model Dermatol also leads on update cadence (every 8 days vs every 5 months) and rating (4.7 vs 4.3). On price, ads and device support 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. Model Dermatol asks for nothing beyond the download.
Model Dermatol holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Model Dermatol has 32 ratings behind it against 6, so its average is the more settled of the two.
Model Dermatol ships an update every 8 days, Derm DDx every 5 months. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.
| Parameter | Model Dermatol | Derm DDx |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (32 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 32 — better | 6 |
| Update frequency | Every 8 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 31 MB | 10 MB |
| Age rating | 17+ | 17+ |
| Developer | Iderma | Unbound Medicine, Inc. |
Customer experience
Model Dermatol
Derm DDx
In-app purchases
Model Dermatol
No in-app purchases
Derm DDx
- Dermatology DDx$69.99
Questions
Is Model Dermatol free?
Is Derm DDx free?
Which has better reviews, Model Dermatol or Derm DDx?
Do Model Dermatol or Derm DDx have ads?
Which is updated more often, Model Dermatol or Derm DDx?
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