Comparison

ACR Guidance vs Opymize

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

Head to head
About

ACR Guidance

Access clinical guidance content from the ACR on your mobile device. Includes resources for contrast reactions, reporting systems, and incidental findings. Designed for healthcare professionals needing on-the-go reference materials.

Highlights
  • Interactive clinical guidance
  • ACR Contrast Reaction Cards
  • Reporting and Data Systems (RADS) content
  • Incidental Findings (IF) content
  • On-the-go reference materials
Features
Read full description

The ACR® Guidance App provides interactive mobile access to select clinical guidance content from the ACR website. Download to access the ACR Contrast Reaction Cards, Reporting and Data Systems (RADS), and Incidental Findings (IF) content. This app is intended for healthcare professionals such as radiologists, oncologists, referring physicians, and medical students who desire on the go reference materials from ACR. This app is not a medical device and should not be considered as one. ACR provides this mobile app for reference purposes only. It is not intended to substitute for the independent clinical judgment of a physician or other health care professional user. A physician or other user is solely responsible for verifying the currency and applicability of app content to a particular clinical situation and thus assumes all risk of use. As allowable under applicable law, ACR and ACR’s employees, officers, directors, agents, contractors and volunteers will not be liable for any damages arising out of the use or misuse of the app, its content, or calculations. This includes but is not limited to a user’s inability to access the app or any loss or corruption of a user’s data.

About

Opymize

Features
Read full description

Opymize is the clinical intelligence platform built for procedural medicine. Whether you are an attending building your preference library, a resident preparing for cases, or a tech setting up the room — everything your team needs is in one place. PROCEDURE PREFERENCES Build detailed procedure preference lists organized by category — access, wires, catheters, closure devices, contrast, and medications. Your preferences follow you across every institution you work at. AI AGENT Ask the AI agent anything about preferences and procedures in plain English. "What wire does Dr. Smith use for a TIPS?" Get the answer instantly — before you scrub in. TEMPLATE LIBRARY Import standard-of-practice procedure trays for the most common IR cases. Browse by category — Vascular Access, Angiography, Drainage, TIPS, Ablation, and more. Import a complete tray in seconds and customize it to your preferences. MY TOOLBOX Your personal equipment inventory pre-loaded with common IR tools organized into 17 categories. Access needles, guidewires, sheaths, microcatheters, drainage catheters, closure devices, embolic agents, balloons and stents, TIPS needles, advanced imaging, and more. PHOTO CAPTURE Photograph existing paper preference cards or instrument labels. The AI reads the image and extracts equipment items automatically. COLLEAGUES Add colleagues and share procedure preferences with your clinical team. Sharing is independent — you control what you share, they control what they share. UNIT CONVERTER Convert between French, millimeters, inches, and gauge instantly. Essential for residents and students learning equipment sizing. FREE FOR ALL CLINICAL USERS Opymize is free for all healthcare professionals. Clinical access is free by design. PRIVACY Opymize does not store patient data. Users are prohibited from entering any patient identifying information. This is not an EHR or clinical records system.

Screenshots

ACR Guidance4 screens
Opymize4 screens

Verdict

The call

The clearest difference is ads: ACR Guidance at none against Opymize's shown. Opymize's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases, device support and iOS requirement 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

ACR Guidance ships an update every 2 months, Opymize fortnightly. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
ACR Guidance versus Opymize: the parameters behind the verdict, then further details
ParameterACR GuidanceOpymize
PriceFreeFree
Rating3.1 (12 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 2 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size111 MB13 MB
Age rating17+17+
DeveloperThe American College of RadiologyTamim Khaddash

In-app purchases

None

ACR Guidance

No in-app purchases

None

Opymize

No in-app purchases

Questions

Is ACR Guidance free?
ACR Guidance is free to download, with no in-app purchases.
Is Opymize free?
Opymize is free to download, with no in-app purchases.
Do ACR Guidance or Opymize have ads?
Opymize shows ads; ACR Guidance does not.
Which is updated more often, ACR Guidance or Opymize?
ACR Guidance ships an update every 2 months, and Opymize fortnightly. Most recently, ACR Guidance was updated on October 17, 2026 and Opymize on October 9, 2026.

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