Comparison

Radioactive Decay Simulator vs Nuclide Chart

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

Head to head
About

Radioactive Decay Simulator

This educational tool simulates radioactive decay for a group of atoms. Users can choose preset atoms or input custom half-lives to observe decay in real-time graphs. The simulator allows for adjustments in atom count and speed for efficient analysis.

Highlights
  • Emulates radioactive decay
  • Select preset or custom atoms
  • Adjust atom count
  • Real-time decay graphs
  • Adjustable simulation speed
Features
Read full description

The Radioactive Decay Simulator emulates the radioactive decay of a group of like atoms. Users are able to select from a range of preset atoms, or enter the half-life of a specific atom that they wish to simulate. By adjusting the number of atoms, users are able to determine how even with a large number of atoms, the randomness of radioactive decay can be modeled. Users are able to observe the both number of decayed atoms as well as the number of non-decayed atoms remaining in a real time graph. The simulator can be sped up to allow atoms with a longer half-life to be analyzed quickly.

About

Nuclide Chart

Features
Read full description

Explore the world of atomic nuclei with the most advanced Nuclide Chart for iPad. This app offers a complete, interactive visualization of all known isotopes (over 3000), perfect for study, research, and teaching. Features: • Live Data: Direct connection to the IAEA (International Atomic Energy Agency) database for up-to-date physical values. • Interactive: Smoothly zoom and pan through the entire chart of nuclides. • Decay Chains: Visualize decay paths (Alpha, Beta, etc.) instantly – step-by-step or as a full chain. • Smart Search: Find isotopes quickly by symbol, mass, or name. • Advanced Filters: Filter by stability or decay mode (Alpha, Beta+, Beta-, Fission). • Detailed Info: Comprehensive data for every nuclide (Half-life, Spin, Binding Energy, Magnetic Moment, Atomic Mass). • Offline-Ready: All data is cached locally for instant access. Ideal for physicists, chemists, students, and anyone interested in nuclear science.

Screenshots

Radioactive Decay Simulator1 screens
Nuclide Chart2 screens

Verdict

The call

The clearest difference is in-app purchases: Radioactive Decay Simulator at none against Nuclide Chart's 1. Radioactive Decay Simulator also leads on iOS requirement (9.3 vs 17.0). Nuclide Chart's advantage is update cadence (daily vs every 17 months). On price, ads 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

Both are free to download. Nuclide Chart sells 1 one-off in-app purchase. Radioactive Decay Simulator asks for nothing beyond the download.

UpkeepUpdate frequency

Radioactive Decay Simulator ships an update every 17 months, Nuclide Chart daily. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
Radioactive Decay Simulator versus Nuclide Chart: the parameters behind the verdict, then further details
ParameterRadioactive Decay SimulatorNuclide Chart
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 17 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.3 — better17.0
Further details — not scored
Size20 MB15 MB
Age rating4+4+
DeveloperAlistair ShawPeer Jansen

In-app purchases

None

Radioactive Decay Simulator

No in-app purchases

1 purchases

Nuclide Chart

One-time1
  • Nuclide Chart Pro$2.99

Questions

Is Radioactive Decay Simulator free?
Radioactive Decay Simulator is free to download, with no in-app purchases.
Is Nuclide Chart free?
Nuclide Chart is free to download, with in-app purchases available.
Do Radioactive Decay Simulator or Nuclide Chart have ads?
Neither Radioactive Decay Simulator nor Nuclide Chart shows ads.
Which is updated more often, Radioactive Decay Simulator or Nuclide Chart?
Radioactive Decay Simulator ships an update every 17 months, and Nuclide Chart daily. Most recently, Radioactive Decay Simulator was updated on September 29, 2026 and Nuclide Chart on October 1, 2026.

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