Comparison

InterSpec Radiation Analysis vs NuklidCalc

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

Head to head
About

InterSpec Radiation Analysis

Analyze nuclear radiation spectral data to identify nuclides, determine source activity, and calculate shielding. Supports various detector file formats and includes tools for dose rate calculations and nuclide decay information.

Highlights
  • Spectral nuclear radiation data analysis
  • Nuclide identification
  • Source activity determination
  • Shielding amount calculation
  • Spectral file format conversion
  • Dose rate calculations
  • Interactive nuclide decay information
Features
Read full description

InterSpec assists in analyzing spectral nuclear radiation data, using a peak-based methodology. Common uses include identifying nuclides present, determining source activity, shielding amounts, source age, or other nuclear reactions present. InterSpec also provides a number of other tools useful for analyzing radiation data including spectral file format converting, dose rate calculations, interactive nuclide decay and reference information, gamma cross section calculations and references, and more. InterSpec can open data files from most common spectral radiation detectors (e.g., most NaI, HPGe, LaBr, CLYC, CsI, etc. based systems) and assist in their analysis.

About

NuklidCalc

Features
Read full description

NuklidCalc is a toolbox allowing certain radiation protection calculations based on data from the RPO. - Nuclides data - Decay calculation - dose rate calculation - Elimination costs for radioactive waste - Help for the choice of transport packages This app is intended for radiation protection experts which received dedicated training in Switzerland and dispose of sufficient knowledge for its use. NuklidCalc is based on values from the radiation protection ordinance RPO of 26 April 2017, the Agreement concerning the International Carriage of Dangerous Goods by Road ADR of 30 September 1957 and DANGEROUS QUANTITIES OF RADIOACTIVE MATERIAL (D-VALUES), IAEA, VIENNA, 2006 (IAEA-EPR-D-Values 2006). Although the FOPH has taken care to ensure that the information displayed and calculated is accurate, no responsibility can be accepted for the accuracy, correctness, up-to-dateness, reliability or completeness of this information.

Screenshots

InterSpec Radiation Analysis4 screens
NuklidCalc4 screens

Verdict

The call

The clearest difference is iOS requirement: InterSpec Radiation Analysis at 11.0 against NuklidCalc's 13.0. On price, update cadence, ads and in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

InterSpec Radiation Analysis ships an update every 11 months, NuklidCalc every 12 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 9 level
InterSpec Radiation Analysis versus NuklidCalc: the parameters behind the verdict, then further details
ParameterInterSpec Radiation AnalysisNuklidCalc
PriceFreeFree
Rating4.3 (12 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 11 months — betterEvery 12 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size80 MB15 MB
Age rating4+4+
DeveloperWilliam JohnsonBundesamt für Gesundheit BAG

In-app purchases

None

InterSpec Radiation Analysis

No in-app purchases

None

NuklidCalc

No in-app purchases

Questions

Is InterSpec Radiation Analysis free?
InterSpec Radiation Analysis is free to download, with no in-app purchases.
Is NuklidCalc free?
NuklidCalc is free to download, with no in-app purchases.
Do InterSpec Radiation Analysis or NuklidCalc have ads?
Neither InterSpec Radiation Analysis nor NuklidCalc shows ads.
Which is updated more often, InterSpec Radiation Analysis or NuklidCalc?
InterSpec Radiation Analysis ships an update every 11 months, and NuklidCalc every 12 months. Most recently, InterSpec Radiation Analysis was updated on November 2, 2026 and NuklidCalc on October 30, 2026.

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