Rad Tech Audio vs X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rad Tech Audio
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Kettering’s audio lectures for the Radiological Technology examination are designed to follow the current Study Guide published by Kettering National Seminars. Since 1979, Kettering National Seminars has been the leader in providing exceptional review programs for Allied Health students preparing for their Radiological Tech credentialing examinations.
X
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X-ray Scattering Simulator is a mobile application tool for demonstrating radiation scattering virtually. The demonstrated data is based on real life measurements in a hospital environment. The application is based on Augmented Reality technology (AR) that allows the user to add virtual 3D elements to the real-world environment through the camera of the mobile device. The objects in this application are the patient, X-ray machine and a color map depicting the radiation scattering. The purpose of this application is to demonstrate how the radiation generated during the X-ray imaging scatters to the environment.
Screenshots
Verdict
The clearest difference is price: X at Free against Rad Tech Audio's $107.99. X also leads on update cadence (every 4 months vs every 39 months) and iOS requirement (12.0 vs 15.1). On 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
X is free to download; Rad Tech Audio costs $107.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Rad Tech Audio ships an update every 39 months, X every 4 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.
| Parameter | Rad Tech Audio | X |
|---|---|---|
| Price | $107.99 | Free — better |
| Update frequency | Every 39 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 214 MB | 79 MB |
| Age rating | 17+ | 4+ |
| Developer | RTS Publishing Co Inc | University of Oulu |
In-app purchases
Rad Tech Audio
No in-app purchases
X
No in-app purchases
Questions
Is Rad Tech Audio free?
Is X free?
Do Rad Tech Audio or X have ads?
Which is updated more often, Rad Tech Audio or X?
Other comparisons
