Comparison

Probability Sim vs randomBox

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

Head to head
About

Probability Sim

Features
Read full description

Probability Simulator 1T Trials is a powerful simulation app that lets you test probabilities to the extreme. Run up to 1 trillion trials and calculate probabilities as low as 1 in a trillion. Choose from decimal, percentage, or fraction notation. Simultaneously run multiple probability events for complex calculations. Perfect for statistics enthusiasts, mathematicians, and anyone interested in random trials. Sharpen your probability intuition and gain real insights from large-scale simulations.

About

randomBox

Features
Read full description

RandomBox - All Random Generation in One Place RandomBox is an all-in-one tool that makes every random choice you need in daily life quick and effortless. Get instant results with just a few tapsβ€”no complicated setup required. Key Features Random Number Generator β€’ Freely set your preferred range and count β€’ Define minimum and maximum values for precise ranges β€’ Toggle duplicate allow/deny options to suit each use case β€’ Clean interface that highlights generated numbers at a glance Random Letter Generator β€’ Combine alphabets, digits, and special characters any way you like β€’ Generate by selecting only the character types you need β€’ Copy the generated string directly to the clipboard β€’ Perfect for passwords, codes, and sample data Random Color Generator β€’ Produce fully random colors instantly β€’ Get RGB, HEX, and HSL values for every color β€’ Copy each color value to the clipboard with one tap β€’ Ideal for design work and palette exploration Random Direction Picker β€’ Spin the compass to land on a random heading β€’ View cardinal direction plus exact angle β€’ Enjoy smooth, playful animations β€’ Great for games and quick decisions Use Cases β€’ Gaming: Dice alternative, team splitting, turn order β€’ Education: Shuffle question sets, presentation order β€’ Design: Build palettes, discover color pairings β€’ Development: Generate test data, sample content β€’ Everyday life: Choose menus, directions, or challenges Highlights - Intuitive, polished interface - Fast, reliable randomness - All features available for free - Lightweight, high-performance experience - Supports both iPhone and iPad - Optimized for portrait and landscape Make every decision moment more fun and convenient with RandomBox!

Screenshots

Probability Sim2 screens
randomBox4 screens

Verdict

The call

The clearest difference is in-app purchases: randomBox at none against Probability Sim's 2. randomBox also leads on update cadence (every 5 days vs every 10 months). Probability Sim's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Probability Sim sells 2 in-app purchases, starting at $4.99 per month. randomBox asks for nothing beyond the download.

UpkeepUpdate frequency

Probability Sim ships an update every 10 months, randomBox every 5 days. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

Scorecard3 real differences Β· 3 level
Probability Sim versus randomBox: the parameters behind the verdict, then further details
ParameterProbability SimrandomBox
PriceFreeFree
Update frequencyEvery 10 monthsEvery 5 days β€” better
AdsYesYes
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better17.0
Further details β€” not scored
Size29 MB13 MB
Age rating4+4+
Developerkota tadaTaeseok Yeom

In-app purchases

2 purchases

Probability Sim

Subscriptions2
  • Ad-free for 1 month7 Days trial$4.991 Month
  • Ad-free for 1 year14 Days trial$49.991 Year
None

randomBox

No in-app purchases

Questions

Is Probability Sim free?
Probability Sim is free to download, with in-app purchases available.
Is randomBox free?
randomBox is free to download, with no in-app purchases.
Do Probability Sim or randomBox have ads?
Both Probability Sim and randomBox show ads.
Which is updated more often, Probability Sim or randomBox?
Probability Sim ships an update every 10 months, and randomBox every 5 days. Most recently, Probability Sim was updated on October 22, 2026 and randomBox on October 11, 2026.

Other comparisons