Comparison

What Doctors Know vs PROTECT

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

Head to head

What Doctors Know

Healthcare magazine app

About

What Doctors Know

Features

Read full description

What Doctors Know is a healthcare magazine geared toward consumers. We cover topics in depth and we get the answers to questions from doctors. ================================== The magazine offers a yearly (5.49€/5.99$) auto-renewable subscription - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase ================================== This magazine is proudly powered by PressPad. Privacy Policy: https://presspadapp.com/terms-apps/ Terms of Use https://www.presspadapp.com/terms/

About

PROTECT

Features

Read full description

Data collection app for PROTECT-ICU platform

Screenshots

What Doctors Know3 screens

PROTECT4 screens

Verdict

The call

The clearest difference is in-app purchases: PROTECT at none against What Doctors Know's 14. What Doctors Know's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. What Doctors Know sells 14 in-app purchases, starting at $5.99 per year. PROTECT asks for nothing beyond the download.

UpkeepUpdate frequency

What Doctors Know ships an update every 4 months, PROTECT every 6 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 4 level

What Doctors Know versus PROTECT: the parameters behind the verdict, then further details
Parameter	What Doctors Know	PROTECT
Price	Free	Free
Update frequency	Every 4 months — better	Every 6 months
Ads	No	No
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0 — better	15.0
Further details — not scored
Size	12 MB	39 MB
Age rating	17+	4+
Developer	PressPad Sp. z o.o.	NICST

In-app purchases

14 purchases

What Doctors Know

Subscriptions1

What Doctors Know$5.991 Year

One-time13

Issue #1$0.99
Issue #2$0.99
Issue #3$0.99

Show 10 more

Issue #95$0.99
Issue #96$0.99
Issue #97$0.99
Issue #98$0.99
Issue #99$0.99
Issue #100$0.99
Issue #91$0.99
Issue #92$0.99
Issue #93$0.99
Issue #94$0.99

None

PROTECT

No in-app purchases

Questions

Is What Doctors Know free?

What Doctors Know is free to download, with in-app purchases available.

Is PROTECT free?

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

Do What Doctors Know or PROTECT have ads?

Neither What Doctors Know nor PROTECT shows ads.

Which is updated more often, What Doctors Know or PROTECT?

What Doctors Know ships an update every 4 months, and PROTECT every 6 months. Most recently, What Doctors Know was updated on October 6, 2026 and PROTECT on October 25, 2026.