Probability Sim vs randomBox
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Probability Sim
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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.
randomBox
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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 tapsβno 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
Verdict
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
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.
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.
| Parameter | Probability Sim | randomBox |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 5 days β better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 29 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | kota tada | Taeseok Yeom |
In-app purchases
Probability Sim
- Ad-free for 1 month7 Days trial$4.991 Month
- Ad-free for 1 year14 Days trial$49.991 Year
randomBox
No in-app purchases
Questions
Is Probability Sim free?
Is randomBox free?
Do Probability Sim or randomBox have ads?
Which is updated more often, Probability Sim or randomBox?
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