Comparison

Probability Calculator Plus vs JavaScript Compiler(Pro)

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

Head to head
About

Probability Calculator Plus

Master probability and statistics with instant, step-by-step solutions for various calculations and distributions. Includes a random experiment simulator and a comprehensive reference guide.

Highlights
  • Basic and conditional probability calculations
  • Venn diagram calculator with visual representation
  • Statistical distributions (Binomial, Normal, Poisson)
  • Random experiment simulator (dice, coins, cards)
  • Step-by-step solutions for all calculations
  • Calculation history and reference guide
Features
Read full description

Master probability and statistics with Probability Calculator — the most complete probability calculator for students, teachers, and data enthusiasts. Whether you're studying for an exam, teaching a class, or working through real-world statistics problems, ProbCalc gives you instant answers with full step-by-step solutions so you truly understand the math. - PROBABILITY CALCULATIONS - • Basic Probability — Calculate P(A) from favorable and total outcomes • Conditional Probability — Solve P(A|B) = P(A∩B) / P(B) • Independent Events — Multiply probabilities across multiple events • Dependent Events — P(A∩B) = P(A) × P(B|A) • Venn Diagram Calculator — Input P(A) and P(B), instantly get P(A∩B), P(A∪B), P(A XOR B), and occurrence probabilities over N trials — complete with visual Venn diagram • Custom Calculator — Enter values as fractions, decimals, or percentages - STATISTICAL DISTRIBUTIONS - • Binomial Distribution — P(X=k), mean, variance, and standard deviation • Normal Distribution — P(a ≤ X ≤ b) with z-score computation and CDF • Poisson Distribution — P(X=k) with λ parameter, mean, and variance -RANDOM EXPERIMENT SIMULATOR - Roll dice, flip coins, and draw cards — all with real probability charts: • Dice: D4, D6, D8, D10, D12, D20 (roll up to 6 at once) • Coins: Flip 1–10 coins simultaneously • Cards: Draw from a standard 52-card deck • Live frequency chart updates with every trial - STEP-BY-STEP SOLUTIONS - Every calculation shows the full working — formula, substitution, and result. Perfect for checking homework, preparing for exams, or learning how probability really works. - CALCULATION HISTORY - Every result is automatically saved. Search, review, and copy any previous calculation. Swipe to delete. Tap for full detail with all steps. -REFERENCE GUIDE - Built-in reference includes: • Complete probability and distribution formulas • Standard Normal Z-table (z = −3.0 to +3.0) • Interactive combinations C(n,r) and permutations P(n,r) calculator - DESIGNED FOR EVERYONE - Clean, distraction-free interface with full Dark Mode support. Tap any result to copy it instantly. Works on iPhone and iPad. No ads. No subscriptions. No internet required. Perfect for: • High school and university statistics courses • AP Statistics, IB Math, A-Level, SAT/ACT prep • College probability and statistics classes • Teachers preparing lessons and examples • Data analysts and business professionals Probability is the measure of the likelihood that an event will occur. Probability is quantified as a number between 0 and 1, where, loosely speaking, 0 indicates impossibility and 1 indicates certainty. Summary of probabilities: Probability that both the events occur P(A ∩ B) = P(A) x P(B). Probability that either of event occurs P(A U B) = P(A) + P(B) - P(A ∩ B). Conditional Probability P(A | B) = P(A ∩ B) / P(B). Conditional Probability P(B | A) = P(A ∩ B) / P(A). Exclusive OR of A and B P(A XOR B) = P(A) + P(B) - 2 X P(A ∩ B). Probability theory is used widely in such areas of study as mathematics, statistics, finance, gambling, science (in particular physics), artificial intelligence/machine learning, computer science, game theory, and philosophy to, for example, draw inferences about the expected frequency of events. Probability theory is applied in everyday life in risk assessment and modeling. The insurance industry and markets use actuarial science to determine pricing and make trading decisions. Governments apply probabilistic methods in environmental regulation, entitlement analysis (Reliability theory of aging and longevity), and financial regulation. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

JavaScript Compiler(Pro)

Features
Read full description

Welcome to the ultimate JavaScript Compiler app, designed to provide an intuitive and powerful coding experience. The app is equipped with features that cater to both beginners and seasoned developers, ensuring a seamless coding journey. Key Features: Syntax Highlighting: Enjoy a vibrant and readable code editor with color-coded syntax highlighting, making it easy to distinguish between different parts of your code. Fast Code Layout: Our fast code layout includes frequently used symbols, allowing you to code more efficiently and with fewer keystrokes. Tools Layout: Access essential shortcuts such as copy, paste, undo, redo, share, and more, all from a convenient tools layout. Customize your own shortcuts to match your workflow and enhance productivity. Navigation Layout: Move your cursor effortlessly with our navigation layout, designed to make code navigation smooth and intuitive. Scan Code Feature: Quickly scan and import code snippets using your device's camera. Perfect for grabbing code from textbooks, whiteboards, or printed documents. Tutorials and News Section: Stay updated with the latest in JavaScript development through our integrated tutorials and news section. Learn new techniques, best practices, and keep up with industry trends. Bookmarks and Project Management: Easily bookmark important code snippets and projects for quick access. Manage your projects efficiently with our built-in project organization tools. Elevate your coding experience with the JavaScript Compiler app, where every feature is crafted to support your development needs. Whether you're writing your first line of code or debugging complex projects, the app is your perfect coding companion. Developed by Anvaysoft Programmer- Hrishi Suthar Made with love in India JavaScript is a registered trademark of Oracle Corporation, and Anvaysoft uses the term 'JavaScript Compiler' to indicate that the app compiles JavaScript code. Anvaysoft does not claim ownership of the JavaScript trademark.

Screenshots

Probability Calculator Plus4 screens
JavaScript Compiler(Pro)4 screens

Verdict

The call

The clearest difference is update cadence: JavaScript Compiler(Pro) at every 7 months against Probability Calculator Plus's every 23 months. JavaScript Compiler(Pro) also leads on iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases 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

Probability Calculator Plus costs $2.99 and JavaScript Compiler(Pro) $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Probability Calculator Plus ships an update every 23 months, JavaScript Compiler(Pro) every 7 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 7 level
Probability Calculator Plus versus JavaScript Compiler(Pro): the parameters behind the verdict, then further details
ParameterProbability Calculator PlusJavaScript Compiler(Pro)
Price$2.99$2.99
Rating3.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 23 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size1 MB62 MB
Age rating4+4+
DeveloperHeng Jia LiangHrishi Suthar

In-app purchases

None

Probability Calculator Plus

No in-app purchases

None

JavaScript Compiler(Pro)

No in-app purchases

Questions

Is Probability Calculator Plus free?
Probability Calculator Plus costs $2.99, with no in-app purchases.
Is JavaScript Compiler(Pro) free?
JavaScript Compiler(Pro) costs $2.99, with no in-app purchases.
Do Probability Calculator Plus or JavaScript Compiler(Pro) have ads?
Neither Probability Calculator Plus nor JavaScript Compiler(Pro) shows ads.
Which is updated more often, Probability Calculator Plus or JavaScript Compiler(Pro)?
Probability Calculator Plus ships an update every 23 months, and JavaScript Compiler(Pro) every 7 months. Most recently, Probability Calculator Plus was updated on September 21, 2026 and JavaScript Compiler(Pro) on September 19, 2026.

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