RadTool vs NDT Nation
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
RadTool
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RadTool β Intelligent Radiation Safety Assistant Radiation Protection Simplified. Safety Amplified. Description: RadTool is a powerful mobile application designed for radiation protection professionals, engineers, and safety officers working in industries such as oil & gas, NDT, nuclear medicine, and industrial radiography. With RadTool, ensure the highest safety standards by calculating radiation dose rates, determining safe distances from radioactive sources, and tracking your location in real time to ensure you remain outside the hazardous zone. Key Features: Safe Distance Calculator β Quickly compute safe distances based on source strength and exposure rate formulas. Dose Rate Estimator β Accurately estimate dose rates at various distances using the inverse square law. Real-Time Location Monitoring β Stay protected with GPS-based alerts when nearing the edge of the calculated safety perimeter. Radiation Source Database β Easy selection of common isotopes in a visual periodic-table-style layout. Custom Safety Zones β Define Controlled, Supervised, and Public Areas for regulatory compliance. User-Friendly Interface β Intuitive and professional UI designed for field usability. Works Offline β Access critical functions even in remote or shielded areas. Whether you're planning a radiographic test, securing a controlled area, or just ensuring occupational radiation safety, RadTool helps you make fast, accurate, and compliant decisionsβon-site and in real time. Stay Safe. Stay Informed. Use RadTool.
NDT Nation
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NDT Nation is the field reference built by RT people, for RT people: 60 verified calculators, a standards reference library and three full exam-prep banks β all working offline at the shot location. 60 CALCULATORS β’ RT β film density by code, R-factors, source decay, exposure correction, geometric unsharpness, boundary estimate, blow factor, wall shot selector, IQI/density check, % sensitivity, HVL attenuation, inverse-square, isotope reference, film development, pipe schedule β’ UT / PAUT / TOFD β wavelength, near field, beam spread, Snell's law, angle-beam path, dB/amplitude, attenuation correction, thickness by echo, temperature correction, scan calculator, DAC/TCG helper, wedge refraction, TOFD setup β’ MT β coil shot, prod current, yoke lift test, demagnetization check β’ ET β depth of penetration, fill factor, phase/impedance, limit frequency β’ PT / VT β dwell time and dwell grid, lighting, coverage check β’ Welding β heat input, fillet weld size, pipe hi-lo, weld symbols, preheat/interpass, PWHT time and temperature, undercut acceptance, camber β’ Materials β carbon equivalent, bolt torque, weld volume, pipe clock position, F#/P# reference, hardness conversion, alloy/PMI reference, unit and temperature conversion ACCEPTANCE CRITERIA + INDICATION EVALUATION Pick the code, edition, pipe size and wall thickness and get the tolerance for each anomaly type computed for your actual wall β with a real reference radiograph on the rows that have one. The API 1104 engine evaluates an indication against the individual-length, worst-12-inch aggregate and percent-of-weld-length tests and tells you which one it fails. FILM INTERPRETATION WITH REAL RADIOGRAPHS Ten defect categories β incomplete penetration, IP due to high-low, elongated slag, porosity, cracks, burn through, hollow bead, internal and external undercut, incomplete fusion β each with real annotated films you can pinch-zoom, plus what it looks like on film and how it is graded. REFERENCE LIBRARY API 510, API 570, API 653, API 571 damage mechanisms, WPS/PQR to ASME IX, PT and UT code guides, PMI guide, CUI/coating and electrode storage β written in our own words from the governing standards and cited, never copied. EXAM PREP β 750 QUESTIONS β’ State card / radiation safety β 200 questions plus study notes and a timed mock on the real blueprint β’ CWI β 351 questions plus bullet study cards β’ ASNT Level II β 199 questions across UT, RT, MT, PT and ET Every answer comes with the explanation and the standard behind it. BUILT FOR THE FIELD β’ Fully offline β no signal needed at the shot β’ Big-screen mode: mirror your phone to a TV or monitor over AirPlay or HDMI for a film-density readout the whole crew can read across the bay β’ Customizable home β pin the tools you use, most-used surface automatically β’ Dark, one-hand interface that reads in bright sun or a dark bay Every formula is built from the governing standard β ASME, API, AWS, ASTM, ASNT, NCRP β and cited, not copied from another app. Reference only. This app does not replace your governing code, your written procedure or certified personnel. Radiation safety outputs are planning aids: always verify with a calibrated survey meter and follow your radiation safety program.
Screenshots
Verdict
The clearest difference is iOS requirement: RadTool at 12.0 against NDT Nation's 15.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | RadTool | NDT Nation |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Daily |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 39 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | GAMAL ABDELNASER GABR GABR | Marcus Cook |
In-app purchases
RadTool
No in-app purchases
NDT Nation
No in-app purchases







