Comparison

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.

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

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.

Highlights
  • Instant step-by-step solutions
  • Graphical function development
  • Curated learning videos
  • Input feedback
  • Solution management
  • Anonymized data collection
Features
Read full description

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

Radioactive Decay Simulator1 screens
Exponential Growth Calculator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Exponential Growth Calculator sells 8 one-off in-app purchases. Radioactive Decay Simulator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Radioactive Decay Simulator versus Exponential Growth Calculator: the parameters behind the verdict, then further details
ParameterRadioactive Decay SimulatorExponential Growth Calculator
PriceFreeFree
Rating4.0 (1 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 17 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better15.0
Further details — not scored
Size20 MB180 MB
Age rating4+4+
DeveloperAlistair ShawGlindemann, Sennoun, Langer GbR

Customer experience

Radioactive Decay Simulator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Exponential Growth Calculator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Radioactive Decay Simulator

No in-app purchases

8 purchases

Exponential Growth Calculator

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +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?
Radioactive Decay Simulator is free to download, with no in-app purchases.
Is Exponential Growth Calculator free?
Exponential Growth Calculator is free to download, with in-app purchases available.
Which has better reviews, Radioactive Decay Simulator or Exponential Growth Calculator?
Exponential Growth Calculator is rated higher. Radioactive Decay Simulator averages 4.0 out of 5 from 1 ratings, while Exponential Growth Calculator averages 5.0 from 2 ratings.
Do Radioactive Decay Simulator or Exponential Growth Calculator have ads?
Neither Radioactive Decay Simulator nor Exponential Growth Calculator shows ads.
Which is updated more often, Radioactive Decay Simulator or Exponential Growth Calculator?
Radioactive Decay Simulator ships an update every 17 months, and Exponential Growth Calculator fortnightly. Most recently, Radioactive Decay Simulator was updated on October 13, 2026 and Exponential Growth Calculator on October 2, 2026.

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