Comparison

Promasys ePro vs ORReady

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

Head to head

Cases, feedback, smart reviews

Free

🏥 Medical

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About

Promasys ePro

Features

Read full description

The Promasys ePro app is an add-on the the Promasys Electronic Data Capture (EDC) system and allows collection of clinical trial related data by subjects and/or patients using their own device.

About

ORReady

Features

Read full description

Build surgical knowledge with 5,900+ multiple-choice questions and clinical cases. ORReady helps medical students and junior doctors prepare for surgical rotations and exams through short, focused practice. • Learn from detailed explanations and source links. • Revisit weaker topics with smart reviews and mistake practice. • Study surgical topics for USMLE and MRCS preparation. • Practise trauma scenarios with timed exams and skills drills. • Build the basics with a 14-day surgery bootcamp. Study in English, Spanish, French, German or Dutch. No account required. For educational use only. Not a medical device. Does not provide diagnostic or treatment advice.

Screenshots

Promasys ePro4 screens

ORReady4 screens

Verdict

The call

The clearest difference is update cadence: ORReady at every 11 days against Promasys ePro's every 15 months. Promasys ePro's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Promasys ePro ships an update every 15 months, ORReady every 11 days. The most recent releases landed on October 26, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 4 level

Promasys ePro versus ORReady: the parameters behind the verdict, then further details
Parameter	Promasys ePro	ORReady
Price	Free	Free
Update frequency	Every 15 months	Every 11 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	15.0
Further details — not scored
Size	22 MB	84 MB
Age rating	12+	17+
Developer	Promasys BV	Willem Knijnenburg

In-app purchases

None

Promasys ePro

No in-app purchases

None

ORReady

No in-app purchases

Questions

Is Promasys ePro free?

Promasys ePro is free to download, with no in-app purchases.

Is ORReady free?

ORReady is free to download, with no in-app purchases.

Do Promasys ePro or ORReady have ads?

Neither Promasys ePro nor ORReady shows ads.

Which is updated more often, Promasys ePro or ORReady?

Promasys ePro ships an update every 15 months, and ORReady every 11 days. Most recently, Promasys ePro was updated on October 26, 2026 and ORReady on November 9, 2026.