Comparison

iRadTech 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

This app provides detailed instructions and technical factors for over 200 radiographic positions, serving as a comprehensive guide for medical imaging professionals and students. It includes representative images, positioning details, and helpful notes, designed to align with ARRT content specifications and ASRT curriculum.

Highlights
  • 200+ radiographic positions
  • Technical factors and settings
  • Patient and part positioning
  • Representative radiographic images
  • Enlargeable positioning photographs
  • Search and save functions
  • ARRT content alignment
Features
Read full description

Radiographic Positioning Guide for Medical Imaging Professionals and Students Meets latest Apple requirements. Similar to x-ray pocket guide or reference booklet. Detailed instructions for more than 200 radiographic positions: 1. technical factors 2. image receptor size and orientation 3. patient and part positioning 4. respiration instructions 5. central ray entrance/exit points and angulation 6. image quality points 7. structures demonstrated Suggested digital imaging systems technical factor settings added for all positions (except nephrotomography) Representative radiographic image which can be enlarged for closer inspection. Enlargeable photograph of properly positioned human model showing the correctly collimated area of interest with the central ray entry point. A helpful NOTE tab for every position; save techniques, special terms, or other helpful information. Search function finds search term in position titles and/or instructions. My Routines function allows grouping of selected positions into a saved routine. My Notes function allows saving notes not related to a position. Developed using the ARRT Content Specifications to include nearly all ARRT entry-level radiographic positions. - “OPTIONAL” positions are included which may be ordered in clinical practice. These OPTIONAL positions are judged by the authors and other educational colleagues as handy references, but are not listed on the ARRT Radiography Content. Instructions referenced to the most recent ASRT Radiography Curriculum and national positioning texts. Written and edited by 2 Ph.D. radiography educators, each with more than 30 years of teaching experience. A convenient guide to positioning the patient and a valuable study aid for radiography students. A great reference and review tool for technologists and clinical instructors.

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

iRadTech4 screens
Prepry4 screens

Verdict

The call

The clearest difference is price: Prepry at Free against iRadTech's $24.99. Prepry also leads on update cadence (every 5 days vs every 8 months) and ratings volume (248 vs 53). iRadTech's advantage is in-app purchases (none vs 5) and chart position (#21 vs unranked). On rating, review sentiment, 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

Prepry is free to download; iRadTech costs $24.99 up front. Prepry sells 5 in-app purchases, starting at $49.99 per month. iRadTech asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for iRadTech against 4.6 for Prepry. Both are backed by a comparable volume of ratings — 53 and 248 respectively. Written reviews are what separate them: 86% of iRadTech's written reviews are positive against 89% of Prepry's.

UpkeepUpdate frequency

iRadTech ships an update every 8 months, Prepry every 5 days. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

Scorecard7 real differences · 4 level
iRadTech versus Prepry: the parameters behind the verdict, then further details
ParameteriRadTechPrepry
Price$24.99Free — better
Rating4.6 (53 ratings)4.6 (248 ratings)
Positive reviews85.5% of reviews88.9% of reviews — better
Number of ratings53248 — better
Update frequencyEvery 8 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
Best chart rank#21 — better—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size122 MB168 MB
Age rating12++4
DeveloperBallinger and Bruckner, LLPImago AI LLC

Customer experience

iRadTech

All ratings53 ratings
Positive90.6%
Neutral5.7%
Negative3.8%
Written reviews76 reviews
Positive85.5%
Neutral6.6%
Negative7.9%

Prepry

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

In-app purchases

None

iRadTech

No in-app purchases

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 free?
iRadTech costs $24.99, with no in-app purchases.
Is Prepry free?
Prepry is free to download, with in-app purchases available.
Which has better reviews, iRadTech or Prepry?
iRadTech and Prepry are both rated 4.6 out of 5 on the App Store, from 53 and 248 ratings respectively.
Do iRadTech or Prepry have ads?
Neither iRadTech nor Prepry shows ads.
Which is updated more often, iRadTech or Prepry?
iRadTech ships an update every 8 months, and Prepry every 5 days. Most recently, iRadTech was updated on September 23, 2026 and Prepry on September 20, 2026.

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