Comparison

PRIDD vs ESDR 2025

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

PRIDD

Features
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Patient-Reported Impact of Dermatological Diseases (PRIDD) is a new and unique measure of the impact of dermatological diseases on the patient’s life and is the first dermatology-specific tool that is applicable to all skin conditions. No other dermatology tool has such broad applicability. PRIDD assesses four dimensions of impact: physical, psychological, life responsibilities and social impacts. PRIDD was developed using a scientifically rigorous and published methodology, resulting in the only dermatology-specific PROM that can be recommended for use according to the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) criteria. PRIDD was developed over seven years in partnership with Cardiff University, University of Hamburg, GlobalSkin and more than 5600 patients living with 90 different dermatological conditions from 96 countries. Each of the development phases of PRIDD have been published in reputable dermatology journals. It the first validated measure in dermatology developed with patients at every step of the process. To learn more about the development of the measure visit https://globalskin.org/research. The entire dermatology community – patients, clinicians, researchers, and pharmaceutical companies – can use PRIDD to better understand patient suffering thereby promoting improved patient-centered healthcare.

About

ESDR 2025

Features
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The content of the annual ESDR meeting includes guest lectures from internationally recognised scientists, cutting-edge β€œfrontier” talks in skin science, oral presentations from peer-reviewed abstracts, educational symposia on a wide-range of topics, electronic and paper presentations of posters and interactive workshop-type sessions. With an attendance of over 1000 delegates, ESDR annual meetings attract basic and clinical scientists from all over the world with an interest in dermatology to discover the latest lab-based, clinical, and translational research findings.

Screenshots

PRIDD4 screens
ESDR 20254 screens

Verdict

The call

The clearest difference is update cadence: ESDR 2025 at weekly against PRIDD's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PRIDD ships an update every 4 months, ESDR 2025 weekly. The most recent releases landed on September 27, 2026 and September 29, 2026 respectively.

Scorecard1 real difference Β· 5 level
PRIDD versus ESDR 2025: the parameters behind the verdict, then further details
ParameterPRIDDESDR 2025
PriceFreeFree
Update frequencyEvery 4 monthsWeekly β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS13.0 β€” better14.0
Further details β€” not scored
Size5 MB64 MB
Age rating17+4+
Developerswiss4ward Europe S.L.key4events

In-app purchases

None

PRIDD

No in-app purchases

None

ESDR 2025

No in-app purchases

Questions

Is PRIDD free?
PRIDD is free to download, with no in-app purchases.
Is ESDR 2025 free?
ESDR 2025 is free to download, with no in-app purchases.
Do PRIDD or ESDR 2025 have ads?
Neither PRIDD nor ESDR 2025 shows ads.
Which is updated more often, PRIDD or ESDR 2025?
PRIDD ships an update every 4 months, and ESDR 2025 weekly. Most recently, PRIDD was updated on September 27, 2026 and ESDR 2025 on September 29, 2026.

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