Comparison

iRadTech HD vs Prepry

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

Head to head
About

iRadTech HD

A radiographic positioning guide for medical imaging professionals and students. It offers detailed instructions, image quality points, and technical factors for various positions, with an initial free version and an in-app purchase to unlock full content.

Highlights
  • Radiographic positioning guide
  • Detailed instructions
  • Image quality points
  • Suggested technical factors
  • Expandable images and radiographs
  • Notes panel for each position
Features
Read full description

iRadTech HD for the iPad iRadTech HD is a radiographic positioning guide for medical imaging professionals and students. It is designed for use on iPads where the Menu, Instructions and Note panels appear simultaneously in landscape orientation. The initial download is a locked version containing 6 free positions allowing the user to evaluate the app. By clicking on a position name showing a lock icon you will be prompted to unlock the app with an In-app purchase. Honestly, the developer, RadTech Resource Group, encourages you to consider buying iRadTech instead of this iRadTech HD because iRadTech has more features, namely Search, My Notes and My Routines. Get iRadTechLite for FREE to see these features. If iRadTech is not shown in the store on your iPad, select Filters, Supports, iPhone. iRadTech HD v4.1 includes: •6 free Radiographic positions with 200+ once unlocked. •Detailed positioning instructions, image quality points and structures demonstrated - Now also includes suggested technical factors (for digital imaging systems) •Expandable positioning images. •Expandable radiographs. •A Notes panel where you can create and edit separate notes for each position Positioning instructions subheadings: •Technical factors •Image receptor •Position of patient •Position of body part •Breathing instructions •Central ray placement and angle •Image quality points •Structures demonstrated If you have any questions or concerns please feel free to email us at info@iradtech.com. You may visit our website at www.iRadTech.com.

About

Prepry

Prepare for your ARRT® Radiography exam with a comprehensive study tool. It offers a large question bank, adaptive learning, and customizable practice tests to enhance retention and track progress. Study online or offline to master radiographic principles for a successful career.

Highlights
  • Extensive question bank
  • Adaptive learning with spaced repetition
  • Customizable practice tests
  • Progress tracking and analytics
  • Offline study capabilities
  • Detailed imaging and anatomy visuals
Features
Read full description

Pass your ARRT® Radiography exam. 100,000+ students trust Prepry to pass their board exams and earn their credentials. Content written or reviewed by R.T.(R)(ARRT)® and R.T.(R)(CT)(ARRT)® educators and radiologists. 2,175+ practice questions. 475+ diagnostic images. AI-powered study tools. Spaced repetition. Mock exams. Earn your R.T.(R)(ARRT)® or R.T.(R)(CT)(ARRT)® credential. QUESTION BANK (2,175+ Questions) • ARRT® Radiography exam: 1,550 • ARRT® Computed Tomography (CT) exam: 625 Detailed explanations for every answer. Answer distribution charts show how others answered. 475+ DIAGNOSTIC IMAGES X-ray anatomy, pathology, positioning, and CT imaging across every topic. AI-POWERED STUDY TOOLS • AI Explanations: Instant AI breakdowns of any question. • AI Readiness Score: Analyzes your coverage, mock scores, mastery, and weak areas to estimate your exam readiness. STUDY MODES • Timed Mock Exams: Simulate the ARRT® registry exam format and timing. • Quiz Builder: Custom exams by chapter, topic, or difficulty. • Flashcards with spaced repetition scheduling. • Study Blocks for focused review sessions. • Free Question of the Day and Quick 10 quizzes. TRACK YOUR PROGRESS • Readiness score, weak area identification, chapter-by-chapter breakdown. • Exam countdown, study reminders, daily goals. • Streaks, badges, XP, and leaderboards. STUDY PLANNER Personalized day-by-day schedule based on your exam date with question targets, mock exam days, and days off. PASS GUARANTEE Did not pass? Get 3 extra months free. • Dark mode. Offline access. • Notes linked to questions and explanations. • Educator portal with cohort management, assignments, and analytics. Subscriptions can be managed and auto-renewal turned off in App Store Settings after purchase. Refunds will not be provided for any unused portion of the term. - https://www.prepry.com/privacy-policy - https://www.prepry.com/terms-of-service - https://www.prepry.com/disclaimer ARRT® and THE AMERICAN REGISTRY OF RADIOLOGIC TECHNOLOGISTS® are registered trademarks of The American Registry of Radiologic Technologists, which has not been involved in the development of our products, does not have an affiliation with this app, and does not endorse our content. R.T.®, R.T.(R)(ARRT)®, and R.T.(R)(CT)(ARRT)® are certification marks of The American Registry of Radiologic Technologists. Ownership of all trademarks mentioned belongs to their respective holders. Prepry covers patient care, safety, image production, imaging procedures, equipment operation, quality control, radiation protection, and radiographic anatomy and positioning for the ARRT® Radiography and CT certification exams. For radiography students, rad tech program graduates, and working radiologic technologists pursuing R.T.(R)(ARRT)® or R.T.(R)(CT)(ARRT)® credentials. Not for clinical use or medical advice.

Screenshots

Prepry4 screens

Verdict

The call

The clearest difference is rating: Prepry at 4.6 against iRadTech HD's 3.3. Prepry also leads on review sentiment (89% vs 50%) and update cadence (every 5 days vs every 19 months). iRadTech HD's advantage is monetization model (free with in-app purchases vs subscription) and iOS requirement (12.0 vs 16.0). 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. iRadTech HD sells 1 one-off in-app purchase and Prepry sells 5 in-app purchases, starting at $49.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Prepry holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Prepry has 248 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of iRadTech HD's written reviews are positive against 89% of Prepry's.

UpkeepUpdate frequency

iRadTech HD ships an update every 19 months, Prepry every 5 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
iRadTech HD versus Prepry: the parameters behind the verdict, then further details
ParameteriRadTech HDPrepry
PriceFreeFree
Rating3.3 (4 ratings)4.6 (248 ratings) — better
Positive reviews50.0% of reviews88.9% of reviews — better
Number of ratings4248 — better
Update frequencyEvery 19 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPadiPhone, iPad — better
Requires iOS12.0 — better16.0
Further details — not scored
Size120 MB168 MB
Age rating12++4
DeveloperBallinger and Bruckner, LLPImago AI LLC

Customer experience

iRadTech HD

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews10 reviews
Positive50.0%
Neutral10.0%
Negative40.0%

Prepry

All ratings248 ratings
Positive90.3%
Neutral2.4%
Negative7.3%
Written reviews27 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

Bugs and requests

iRadTech HD

Not enough reviews yet to summarise bugs or requests.

Prepry

Reported bugs

2 issues
  • Image review progress resets
  • Some bugs present

Requested features

3 requests
  • Save progress during image review tool
  • Add French language option
  • Make all features usable without paying

In-app purchases

1 purchases

iRadTech HD

One-time1
  • iRadTech HD unlock exams$24.99
5 purchases

Prepry

Subscriptions4
  • Prepry Monthly$49.991 Month
  • Prepry Quarterly$149.993 Months
  • Prepry 6 Months$179.996 Months
Show 1 more
  • Prepry Annual$199.991 Year
One-time1
  • Prepry Lifetime$399.99

Questions

Is iRadTech HD free?
iRadTech HD is free to download, with in-app purchases available.
Is Prepry free?
Prepry is free to download, with in-app purchases available.
Which has better reviews, iRadTech HD or Prepry?
Prepry is rated higher. iRadTech HD averages 3.3 out of 5 from 4 ratings, while Prepry averages 4.6 from 248 ratings.
Do iRadTech HD or Prepry have ads?
Neither iRadTech HD nor Prepry shows ads.
Which is updated more often, iRadTech HD or Prepry?
iRadTech HD ships an update every 19 months, and Prepry every 5 days. Most recently, iRadTech HD was updated on October 8, 2026 and Prepry on October 18, 2026.

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