Rad Index vs RadPosition
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Rad Index
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Radiographic positioning reference app for Radiographers, Radiologic Technologists and Radiography students. 147 clinical projection cards with separate DR and CR technical parameters, calculators, spaced repetition flashcards and ALARA checklist โ all offline. Built by a practicing Radiographer (TSRM). Clinical content peer-reviewed twice. Available in Italian, English and Spanish. โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ RADIOGRAPHIC PROJECTIONS โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ 147 cards across 8 anatomical regions: โข Chest โ PA, lateral, obliques, trauma variants (cross-table, supine) โข Skull โ PA, lateral, Waters, Caldwell, Towne, skull base, mastoids, orbits, sinuses โข Spine โ cervical, thoracic, lumbar, sacrum, coccyx; trauma and stretcher variants โข Upper limb โ fingers, hand, wrist, forearm, elbow, humerus, shoulder, clavicle, sternum, scapula โข Lower limb โ toes, foot, calcaneus, ankle, tibia/fibula, knee, femur, hip, pelvis, patella โข Abdomen โ supine, erect, decubitus โข Pelvis โ AP, oblique projections โข Long bone stitching โ full spine, full limb Each card: patient positioning, centering point, separate DR and CR parameters, image quality criteria, common errors, practical clinical notes. Collapsible DR/CR/PSP guide with Deviation Index (DI) formula and grid frequency table. โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ STUDY & REVIEW โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โข Flashcards with spaced repetition โข 3 cards per projection: centering, DR parameters, patient position โข Automatic daily sessions based on performance โข Ideal for registry exams and clinical placement โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ STUDY TOOLS โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โข Interactive ALARA checklist (ICRP 147/2021) โข Personal notes for each projection with auto-save โข PDF export and share with zone-coloured header โข Radiological glossary (All / Technical / Anatomy tabs) โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ DESIGN & USABILITY โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โข Full dark mode with dedicated zone colours โข Adjustable text size: S / M / L / XL โข Works completely offline โข Available in Italian, English and Spanish โข Quick search with filters (zone, level, notes) and history โข Favourites and recents on home screen 14-day free trial โ no card required. Then a one-time purchase of โฌ9.99. No subscription, ever.
RadPosition
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We have developed this mobile application to provide easier, more intuitive access to radiographic positioning techniques for clinical practitioners and students. Multilingual translation is available for some text. Please note that context may feel unnatural due to the use of Google Translate. (Korean, Chinese, Spanish, French, German, Greek, Hindi, Arabic, Indonesian, Portuguese, Russian, Vietnamese, Thai, Filipino). Please note that this app contains some ads to support ongoing maintenance and its continued availability on the App Store. We appreciate your understanding.
Screenshots
Verdict
The clearest difference is in-app purchases: RadPosition at none against Rad Index's 1. Rad Index's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Rad Index sells 1 one-off in-app purchase. RadPosition asks for nothing beyond the download.
Rad Index ships an update fortnightly, RadPosition every 2 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Rad Index | RadPosition |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly โ better | Every 2 weeks |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details โ not scored | ||
| Size | 39 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Simone Zen | BYOUNG JUN HWANG |
In-app purchases
Rad Index
- Rad Index Premium$8.99
RadPosition
No in-app purchases








