Radioactive Decay Simulator vs Shock Diamonds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Emulates radioactive decay
- Select preset or custom atoms
- Adjust atom count
- Real-time decay graphs
- Adjustable simulation speed
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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.
Shock Diamonds
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This is an app that simulates supersonic exhaust flow with ability to interact with custom 3D models
Screenshots
Verdict
The clearest difference is update cadence: Shock Diamonds at every 4 days against Radioactive Decay Simulator's every 17 months. Radioactive Decay Simulator's advantage is device support (3 vs 1) and iOS requirement (9.3 vs 18.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Radioactive Decay Simulator ships an update every 17 months, Shock Diamonds every 4 days. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.
| Parameter | Radioactive Decay Simulator | Shock Diamonds |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 17 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.3 — better | 18.0 |
| Further details — not scored | ||
| Size | 20 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Alistair Shaw | Viacheslav Gilevich |
In-app purchases
Radioactive Decay Simulator
No in-app purchases
Shock Diamonds
No in-app purchases
Questions
Is Radioactive Decay Simulator free?
Is Shock Diamonds free?
Do Radioactive Decay Simulator or Shock Diamonds have ads?
Which is updated more often, Radioactive Decay Simulator or Shock Diamonds?
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