Comparison

KM vs Radio Interactive

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

Head to head
About

KM

Features
Read full description

Practice program for i.v. and i.a. application of iodine-containing contrast agents. Intravenous or intra-arterial application of iodine-containing contrast agents may result in various side effects, including renal function impairment, allergic reactions, and hyperthyroidism. Taking into account the various risk factors, individual prophylaxis regimens can be established for each patient. The CM-Helper is intended as a training program to help patients practice the use of iodine-containing contrast media so that they can later identify high-risk patients in clinical routine in good time and, if necessary, initiate suitable corrective or protective measures. Medical decisions should not be made solely based on the information contained in the app. You should seek the advice of a doctor when using this app and before making any medical decisions.

About

Radio Interactive

Read full description

Become the radiologist you aspire to be Learn smarter. Train deeper. Grow faster. For every level, in 18 languages. Radio Interactive gives you your personal AI Tutor, Trainer and Mentor β€” designed by radiologists, for radiologists. Train with authentic clinical cases, receive instant expert-level feedback, and master the skills that truly set you apart. Anytime. Anywhere. From medical student to specialist. Why radiologists train with us β€’ Real clinical cases with high-resolution X-ray, CT and MRI β€’ Adaptive AI tutoring β€” interactive, not passive β€’ Free-text case discussions (no multiple choice) β€’ Personalized learning paths β€” identify and close your gaps β€’ Daily micro-learning β€” progress even on busy shifts β€’ Made in Germany β€” medical accuracy, privacy and trust Learn radiology as it’s practiced β€’ Make findings, write reports and justify your reasoning β€’ Ask follow-up questions and explore topics in depth β€’ Receive tailored feedback and helpful hints β€’ Build diagnostic confidence case by case Your journey to radiologic excellence starts here. For medical students, residents and board-certified radiologists. No matter your goal β€” exam preparation, upskilling or career development β€” your AI mentor supports your learning, thinking and growth. Download now and unlock the potential of modern AI in radiology. Start for free. Go Pro if you want to.

Screenshots

KM4 screens
Radio Interactive4 screens

Verdict

The call

The clearest difference is update cadence: KM at monthly against Radio Interactive'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

KM ships an update monthly, Radio Interactive every 4 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

Scorecard1 real difference Β· 5 level
KM versus Radio Interactive: the parameters behind the verdict, then further details
ParameterKMRadio Interactive
PriceFreeFree
Update frequencyMonthly β€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS14.013.0 β€” better
Further details β€” not scored
Size60 MB39 MB
Age rating12+17+
DeveloperChristian SchrammRadio Interactive GmbH

In-app purchases

None

KM

No in-app purchases

None

Radio Interactive

No in-app purchases

Questions

Is KM free?
KM is free to download, with no in-app purchases.
Is Radio Interactive free?
Radio Interactive is free to download, with no in-app purchases.
Do KM or Radio Interactive have ads?
Neither KM nor Radio Interactive shows ads.
Which is updated more often, KM or Radio Interactive?
KM ships an update monthly, and Radio Interactive every 4 months. Most recently, KM was updated on October 16, 2026 and Radio Interactive on October 17, 2026.

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