Radioactive Decay Simulator vs Exponential Growth Calculator
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.
Exponential Growth Calculator
Instantly solve math problems and prepare for exams with step-by-step solutions. Visualize your function's development graphically by entering initial values, growth rates, or time. Access curated learning videos and manage your solutions.
- Instant step-by-step solutions
- Graphical function development
- Curated learning videos
- Input feedback
- Solution management
- Anonymized data collection
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Get homework done instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter initial value, growth rate, factor or time and see how your function develops graphically. HOW IT WORKS Enter your values in the appropriate fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All steps remain fully available. If you need many solutions in a short time, various purchase options are available. EXTRAS - Overview of how your inputs affect growth and decay - curated learning videos - feedback for incorrect inputs - manage your own solutions - introduction to the app CONTACT Questions and feedback via Discord or directly in the app review.
Screenshots
Verdict
The clearest difference is rating: Exponential Growth Calculator at 5.0 against Radioactive Decay Simulator's 4.0. Exponential Growth Calculator also leads on update cadence (fortnightly vs every 17 months). Radioactive Decay Simulator's advantage is in-app purchases (none vs 8) and iOS requirement (9.3 vs 15.0). On price, ratings volume, 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
Both are free to download. Exponential Growth Calculator sells 8 one-off in-app purchases. Radioactive Decay Simulator asks for nothing beyond the download.
Exponential Growth Calculator holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Radioactive Decay Simulator ships an update every 17 months, Exponential Growth Calculator fortnightly. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.
| Parameter | Radioactive Decay Simulator | Exponential Growth Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 17 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 20 MB | 180 MB |
| Age rating | 4+ | 4+ |
| Developer | Alistair Shaw | Glindemann, Sennoun, Langer GbR |
Customer experience
Radioactive Decay Simulator
Exponential Growth Calculator
In-app purchases
Radioactive Decay Simulator
No in-app purchases
Exponential Growth Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
Questions
Is Radioactive Decay Simulator free?
Is Exponential Growth Calculator free?
Which has better reviews, Radioactive Decay Simulator or Exponential Growth Calculator?
Do Radioactive Decay Simulator or Exponential Growth Calculator have ads?
Which is updated more often, Radioactive Decay Simulator or Exponential Growth Calculator?
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