Binomial Probability P(X=k) vs EqCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Binomial Probability P(X=k)
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Get your homework done instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and compute P(X=k) with probability tree, histogram, and distribution function. HOW IT WORKS Enter your values in the right fields and get started. You’ll get 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 you use - how many solutions you generate This helps us improve. We can’t identify you. COSTS Everything is free to use. 24/7 access to your solutions. All steps are always fully shown. If you need many solutions in a short time, different purchase options are available. EXTRAS - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
EqCalc
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EqCalc‑G is an educational and engineering reference tool for calculating gaseous chemical equilibrium using Gibbs free‑energy minimization. Designed for students, researchers, and practicing engineers, the app provides a fast, portable way to explore equilibrium behavior in hydrogen and hydrocarbon systems under ideal‑gas assumptions. Key Features: • Includes a publicly available thermochemical dataset derived from NASA curve‑fits of the NIST‑JANAF tables for selected species • Import your own thermochemical datasets in Aerotherm, Chemkin, or NASA CEA formats • Flexible reactant specification: - Define mixtures on a mole or mass basis - Or specify fuel mixture, air, and fuel‑air equivalence ratio • Export results easily by copying output to the clipboard for use in your favorite notes or spreadsheet apps Basic vs. Plus Version: The free Basic version supports fixed enthalpy and pressure equilibrium calculations. Upgrade to Plus version to unlock additional problem types: • Fixed temperature & pressure • Fixed entropy & pressure • Fixed internal energy & volume • Fixed temperature & volume • Fixed entropy & volume NASA/NIST Notice: Use of NASA and NIST thermochemical data does not imply endorsement, certification, recommendation, or approval of this app, its developer, or any results produced. NASA and NIST provide no warranties and assume no liability for the use of their data within this app. Privacy Policy: https://jtonouchi.github.io/EqCalc-G/privacy Terms and Conditions: https://jtonouchi.github.io/EqCalc-G/terms
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Verdict
The clearest difference is update cadence: Binomial Probability P(X=k) at every 3 weeks against EqCalc's every 2 months. Binomial Probability P(X=k) also leads on iOS requirement (15.0 vs 18.2). 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
Both are free to download. Binomial Probability P(X=k) sells 8 one-off in-app purchases and EqCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Binomial Probability P(X=k) ships an update every 3 weeks, EqCalc every 2 months. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.
| Parameter | Binomial Probability P(X=k) | EqCalc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 180 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Glindemann, Sennoun, Langer GbR | Jon Tonouchi |
In-app purchases
Binomial Probability P(X=k)
- +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
- Lifetime Access$1.99
- Remove Ads$1.99
EqCalc
- Plus Version$2.99
Questions
Is Binomial Probability P(X=k) free?
Is EqCalc free?
Do Binomial Probability P(X=k) or EqCalc have ads?
Which is updated more often, Binomial Probability P(X=k) or EqCalc?
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