Prepry vs Tech Aide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Timed mock exams
- Question bank with 2,700+ questions
- X-ray positioning guide
- Challenge mode for recall
- Clinical tracking
- AI readiness score
- Spaced repetition
Read full descriptionHide 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.
Tech Aide
Provides radiologic technologists with quick, practical information for over 170 radiographic views. Features include detailed positioning guidance, custom equipment profiles, and credential tracking for professional requirements.
- 170+ radiographic views
- Positioning guidance
- Custom equipment profiles
- Credential tracking
- CE tracking
- Document vault
Read full descriptionHide full description
Tech Aide brings radiographic references, everyday workflow tools, and professional tracking together in one app built specifically for rad techs. Access complete radiographic views, organize the way you work, and keep your credentials, continuing education, and documents close at hand. EXPLORE THE ATLAS Get free access to 170+ radiographic views across seven anatomy categories, with licensed reference images available for most views. Find your view by searching anatomy, view names, common abbreviations, or aliases. Each reference organizes the details you need for quick review, including: • Patient and part positioning • Central ray, SID, and collimation • Image receptor information • Breathing instructions • Image evaluation criteria • Common positioning errors • Marker placement • Adult and pediatric Quick Technique references, where applicable WORK MORE EFFICIENTLY WITH TECH AIDE PRO An optional monthly or annual subscription adds tools to personalize your workflow and keep your professional requirements organized. SAVE WHAT MATTERS Keep frequently used views and routines close at hand with Favorites. Spend less time searching for the references you return to most. CUSTOMIZE YOUR WORKFLOW Choose from 42 preset routines or build your own. Group views around the exams you perform and arrange them in the order that works for you. PERSONALIZE YOUR TECHNIQUE Create Equipment Profiles for the rooms and portable systems you use. Save your own adult and pediatric techniques by equipment, with preferred settings and notes organized alongside your Atlas references. WELCOME TO WAYPOINT Bring your licenses, certifications, continuing education, and supporting documents together in one place. Track credential expiration dates and review your renewal progress with clear status indicators. TRACK EVERY CREDIT Log CE activities and link them to the credentials they support. Keep certificates and other professional documents organized in your Vault, so your records are easy to find when you need them. Designed for quick reference, with a dark interface suited to low-light clinical environments. Tech Aide. Radiography Optimized. Terms of Use (EULA): [https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)
Screenshots
Verdict
The clearest difference is rating: Tech Aide at 5.0 against Prepry's 4.6. Tech Aide also leads on update cadence (weekly vs fortnightly) and review sentiment (100% vs 89%). Prepry's advantage is ratings volume (253 vs 3). On price, ads, in-app purchases and monetization model 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
Both are free to download. Prepry sells 5 in-app purchases, starting at $49.99 per month and Tech Aide sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Tech Aide holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Prepry has 253 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 89% of Prepry's written reviews are positive against 100% of Tech Aide's.
Prepry ships an update fortnightly, Tech Aide weekly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | Prepry | Tech Aide |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (253 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 88.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 253 — better | 3 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 175 MB | 154 MB |
| Age rating | 4+ | 4+ |
| Developer | Imago AI LLC | NICHOLAS GREGORY CALLAHAN |
Customer experience
Prepry
Tech Aide
Bugs and 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
Tech Aide
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Prepry
- Prepry Monthly$49.991 Month
- Prepry Quarterly$149.993 Months
- Prepry 6 Months$179.996 Months
Show 1 moreShow fewer
- Prepry Annual$199.991 Year
- Prepry Lifetime$399.99
Tech Aide
- Tech Aide Pro - Monthly7 Days trial$4.991 Month
- Tech Aide Pro - Annual7 Days trial$44.991 Year







