Multinomial vs Dual Calculator
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Multinomial
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This app computes binomial and multinomial (= polynomial) coefficients. The app runs now also on iPad.
Dual Calculator
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Two calculators. One screen. Faster calculations. Dual Calculator: Split Screen gives you two calculators in one clean workspace, making it easy to calculate, compare results, and work with multiple numbers without constantly switching screens. Whether you're studying, working with numbers, handling business calculations, or solving scientific math problems, the dual calculator layout helps you work faster and stay focused. KEY FEATURES β’ TWO CALCULATORS ON ONE SCREEN Run two separate calculations side by side and keep both results visible at the same time. β’ INSTANT VALUE TRANSFER Move a result from one calculator to the other with a tap. Continue your calculations without memorizing or retyping numbers. β’ BASIC CALCULATOR Handle everyday calculations quickly with a simple and easy-to-use interface. β’ SCIENTIFIC CALCULATOR Access scientific functions when you need more advanced calculations for math, science, engineering, or study. β’ COMPARE RESULTS EASILY Calculate different values simultaneously and compare your results without losing your previous calculation. β’ BUILT FOR MULTITASKING Perfect when one calculator isn't enough. Work with two calculations independently while keeping everything visible. β’ FAST AND LIGHTWEIGHT Designed for quick calculations, reliable performance, and an uncomplicated calculator experience. USEFUL FOR Students solving math and science problems, engineers working with multiple values, accountants and business users comparing figures, and anyone who regularly needs more than one calculation at a time. Instead of switching between calculator screens or writing down temporary results, keep two calculations ready at once. Calculate side by side. Compare instantly. Transfer results with a tap. Download Dual Calculator: Split Screen and make everyday calculations faster and easier.
Screenshots
Verdict
The clearest difference is ads: Multinomial at none against Dual Calculator's shown. Dual Calculator's advantage is update cadence (every 5 months vs every 47 months) and iOS requirement (15.0 vs 18.6). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Multinomial ships an update every 47 months, Dual Calculator every 5 months. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.
| Parameter | Multinomial | Dual Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 47 months | Every 5 months β better |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 18.6 | 15.0 β better |
| Further details β not scored | ||
| Size | 1 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Reinhard MAENNER | Huzaib Sayyed |
In-app purchases
Multinomial
No in-app purchases
Dual Calculator
No in-app purchases





