Comparison

GammaGadget vs Euler Gamma

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GammaGadget

Read full description

GammaGadget is the premier tool for Industrial Radiographers and NDT professionals. Functionality includes: Shot Calculations, Boundary Calculations (with customizable boundaries), Time Tracking, Shot History with Part Identifier, Decay Calculation, Exposure Correction, and Area of Interest.

About

Euler Gamma

Features
Read full description

The all-in-one calculator suite for industrial gamma radiography professionals. Whether you're planning an exposure, calculating safety boundaries, or verifying ASME compliance — Euler Gamma delivers accurate results instantly, right from your pocket. Trusted by NDT technicians, RSOs, and radiography crews worldwide. WHAT YOU GET • Decay Calculator — Activity remaining after any elapsed time for Ir-192, Se-75, and Co-60 • Dose Rate Calculator — Inverse-square law with real-time results in mR/hr, µSv/hr, and more • Barricade Calculator — Safety boundary distances per NRC 10 CFR 20 guidelines • HVL Shielding Calculator — Half-Value Layer attenuation for Steel, Lead, Concrete, and more • Unsharpness Calculator — Geometric unsharpness (Ug) with ASME V Article 2 pass/fail checks • Reference Data — Built-in gamma constants, material properties, and occupancy factors BUILT FOR THE FIELD • Works offline — no internet required at the job site • Clean, fast interface designed for one-handed use • Supports both SI and US customary units • Results you can screenshot and share instantly COMPLIANCE YOU CAN TRUST Physical constants validated against NIST, ICRP, and NRC publications. ASME Section V limits built-in. Know your numbers are right — every single time. Download Euler Gamma today and make every shot safer and more precise.

Screenshots

GammaGadget4 screens
Euler Gamma4 screens

Verdict

The call

The clearest difference is price: Euler Gamma at Free against GammaGadget's $4.99. GammaGadget's advantage is iOS requirement (14.2 vs 17.0). 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

CostPrice ¡ In-app purchases ¡ Ads ¡ Monetization

Euler Gamma is free to download; GammaGadget costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ¡ 4 level
GammaGadget versus Euler Gamma: the parameters behind the verdict, then further details
ParameterGammaGadgetEuler Gamma
Price$4.99Free — better
Update frequency—Every 9 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.2 — better17.0
Further details — not scored
Size136 MB14 MB
Age rating17+4+
DeveloperWhit Seelbach音 卢

In-app purchases

None

GammaGadget

No in-app purchases

None

Euler Gamma

No in-app purchases

Questions

Is GammaGadget free?
GammaGadget costs $4.99, with no in-app purchases.
Is Euler Gamma free?
Euler Gamma is free to download, with no in-app purchases.
Do GammaGadget or Euler Gamma have ads?
Neither GammaGadget nor Euler Gamma shows ads.

Other comparisons