GRAPPA App vs PhotoDoc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GRAPPA App
This medical application aids in the assessment of patients with psoriatic arthritis and psoriasis. It provides tools to calculate disease severity scores and includes patient-completed questionnaires in multiple languages. Access to GRAPPA resources is also available.
- Psoriatic arthritis and psoriasis assessment
- Disease severity calculators (MDA, PASI, BSA)
- Patient-completed questionnaires (PsAID, PEST, HAQ)
- Multilingual questionnaire support
- Access to GRAPPA resources
Read full descriptionHide full description
This app from GRAPPA (Group for Research and Assessment of Psoriasis and Psoriatic Arthritis) is designed to support the assessment of patients with psoriatic arthritis and psoriasis. It allows users to calculate a patient’s MDA and assess skin disease (using either PASI or BSA) through specially designed calculators. The app also includes PsAID, PEST and HAQ questionnaires which can be completed directly by patients in a range of languages and a selection of slides from the GRAPPA resources. Visit http://www.grappanetwork.org/ to find out more about GRAPPA.
PhotoDoc
This healthcare platform allows medical professionals to capture and manage patient photos and videos securely. It offers smart camera features for standardized imaging, AI-powered facial analysis, and organized cloud storage, ensuring patient data is separate from personal files.
- Standardized photo and video capture
- Before and after collage creation
- AI facial analysis
- Secure cloud storage
- Cross-device synchronization
- Biometric and PIN app protection
Read full descriptionHide full description
PhotoDoc is the ideal solution for healthcare professionals who need to take and manage a large number of photos and videos of their patients, in a safe, practical and intelligent way. Smart camera: - Take standardized photos and short videos of your patients with the exclusive framing templates, avoiding distortions. - Use the sensor that demonstrates the angle of the device to take accurate photos. - Take a second photo based on the shadow of a previous photo (ghost photo). Before and after collages: - Make before and after collages directly in the app. - Choose between different types of layout and define the borders' size and color. - Use the exclusive smart zoom feature, which allows you to zoom directly into the main parts of the face, making collage generation much easier. - Apply AI filters to photos like "remove background" and "level eyes". Facial analysis with artificial intelligence: - Make sophisticated facial analysis and study the harmony of the face based on lines and proportions automatically calculated by the app. - Horizontal thirds, vertical fifths and eye / mouth ratio are some of the supported facial analyzes. Secure and organized: - Photos are stored securely in the PhotoDoc cloud and are not available in the device's photo gallery. In this way, your patients' photos are separated from your personal photos and do not take up space. - The photos are organized in a list of patients in a practical and simple way, without wasting time. When the patient returns, a simple search by name is enough and you have immediate access to your previous photos. - Add categories and notes to photos and apply filters by category to the list of patients and photos. - You can protect access to the app with biometrics and PIN authentication. This way, whenever the app is opened, after a time without use (configurable), a new authentication will be necessary. Photos synced across all your devices: - Use PhotoDoc on as many devices as you want, simultaneously. Just install the app on all your devices and sign in with the same account. - Take photos with your phone and instantly see them on other devices, like tablets and computers. - You will no longer have to worry about saving and organizing files, PhotoDoc already does this in an integrated manner, with complete data security. Subscription plans: - PhotoDoc can be used in the Trial version with a limitation on the number of photos and features. - To increase storage capacity and have more features, make a monthly subscription to one of the available plans, through the app itself. Terms and Conditions: https://photodoc.app/en/terms_and_conditions.html Privacy Policy: https://photodoc.app/en/privacy_policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: GRAPPA App at none against PhotoDoc's 4. GRAPPA App also leads on iOS requirement (13.0 vs 15.0). PhotoDoc's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (65 vs 2). On price, rating, 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. PhotoDoc sells 4 in-app purchases, starting at $9.99 per month. GRAPPA App asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for GRAPPA App against 4.9 for PhotoDoc. That said, the two scores are not equally well evidenced: PhotoDoc has 65 ratings behind it against 2, so its average is the more settled of the two.
GRAPPA App ships an update every 3 months, PhotoDoc every 3 weeks. The most recent releases landed on October 8, 2026 and October 29, 2026 respectively.
| Parameter | GRAPPA App | PhotoDoc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.9 (65 ratings) |
| Positive reviews | — | 57.1% of reviews |
| Number of ratings | 2 | 65 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #88 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 64 MB | 108 MB |
| Age rating | 17+ | 17+ |
| Developer | Group for Research and Assessment of Psoriasis and Psoriatic Arthritis | Wiseminer |
Customer experience
GRAPPA App
PhotoDoc
In-app purchases
GRAPPA App
No in-app purchases
PhotoDoc
- PhotoDoc Starter$9.991 Month
- PhotoDoc Plus$29.991 Month
- PhotoDoc Pro$59.991 Month
Show 1 moreShow fewer
- PhotoDoc Pro Teams$349.991 Month









