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 radiography and CT registry exams with comprehensive practice tests, detailed explanations, and AI-powered readiness scores. Master weak areas with spaced repetition and access a positioning guide and clinical tracking tools. Study daily with engaging features designed for effective learning.

Highlights
  • Timed mock exams
  • Question bank with 2,700+ questions
  • X-ray positioning guide
  • Challenge mode for recall
  • Clinical tracking
  • AI readiness score
  • Spaced repetition
Features
Read full description

Prepry is radiography and CT registry review for rad tech students, built so you want to study every day. 30,000+ radiography students have studied with Prepry for their ARRT® Radiography and CT exams. Content is created and taught by registered radiography educators, R.T.(R)(ARRT)® and R.T.(R)(CT)(ARRT)®, with technology adapting it to you. Real educators write the content. Take timed mock exams, see exactly where you are weak, and drill those areas until your readiness score says you are ready. Missed questions come back on a spaced repetition schedule until you master them. NEW: X-RAY POSITIONING GUIDE A radiographic positioning library inside the app, organized by body region from chest and thorax to the extremities. Step by step positioning for each projection, with collimation and the expected radiograph, right next to your practice questions. NEW: CHALLENGE MODE Questions appear without the answer choices, so you recall the answer from memory instead of recognizing it. Not sure? Work through the options one at a time and eliminate the wrong ones, just like on exam day. NEW: CLINICAL Track clinicals. Clock in and out, see weekly hours, log each exam in seconds, and follow your skills progress, with protocols and measurement references one tap away. MOCK EXAMS AND READINESS • Timed Mock Exams: full length practice tests that follow the ARRT® registry exam format and timing. • NEW Exam Simulator: a locked screen layout modeled on the test center, so exam day feels familiar. • Weak area identification and chapter by chapter breakdown after every mock. • NEW Score Trends: see your scores climb. • AI Readiness Score: tells you when you are exam ready. • Study Planner: a day by day schedule built from your exam date. QUESTION BANK (2,700+ Questions) • ARRT® Radiography exam: 2,085+ • ARRT® Computed Tomography (CT) exam: 625+ for CT registry review Covers patient care, safety, radiation protection, image production, equipment operation, quality control, imaging procedures, and radiographic anatomy and positioning. Step by step explanations for every answer. 475+ DIAGNOSTIC IMAGES X-ray anatomy, pathology, positioning, and CT imaging across every topic. BUILT FOR DAILY STUDY • Streaks that keep you on track, plus exam countdown, study reminders, and daily goals. • Flashcards with spaced repetition scheduling. • Quiz Builder: custom quizzes in seconds by chapter, topic, or difficulty. • Free Question of the Day and Quick 10 quizzes. • Study Blocks for focused review sessions. • Badges and XP. AI STUDY TOOLS • AI Explanations: instant breakdowns of any question. PASS GUARANTEE Did not pass? Get 3 extra months free. MORE • Dark mode and offline access. Also on Android and web (app.prepry.com). • Notes linked to questions and explanations. • Educator portal with cohort management, assignments, and analytics. For radiography students, rad tech program graduates, and working radiologic technologists pursuing R.T.(R)(ARRT)® or R.T.(R)(CT)(ARRT)® credentials, including CT registry prep. Not for clinical use or medical advice. 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.

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 (fortnightly vs every 8 months) and ratings volume (252 vs 52). iRadTech's advantage is in-app purchases (none vs 5) and chart position (#15 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 — 52 and 252 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 fortnightly. The most recent releases landed on November 6, 2026 and November 5, 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 (52 ratings)4.6 (252 ratings) — better
Positive reviews85.5% of reviews88.9% of reviews — better
Number of ratings52252 — better
Update frequencyEvery 8 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#15 — better—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size122 MB175 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 ratings252 ratings
Positive90.5%
Neutral2.4%
Negative7.1%
Written reviews27 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

Bugs and requests

iRadTech

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

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?
Prepry is rated higher. iRadTech averages 4.6 out of 5 from 52 ratings, while Prepry averages 4.6 from 252 ratings.
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 fortnightly. Most recently, iRadTech was updated on November 6, 2026 and Prepry on November 5, 2026.

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