Comparison

Big Yellow Calculator vs Dual Calculator

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

Head to head
About

Big Yellow Calculator

This versatile calculator app offers customizable layouts, switching between standard and scientific modes. It also allows users to store up to 10 intermediate results for complex calculations, making it a functional tool for various needs.

Highlights
  • Customizable layouts
  • Standard and scientific modes
  • Store intermediate results
  • Up to 10 stored results
  • Versatile functionality
Features
Read full description

Tired of rigid, one-size-fits-all calculator interfaces? CustomCalc redefines your calculating experience with two powerful core features tailored for personalized and efficient math work. Fully Customizable Button Layout Take full control of your calculator interface! Add, delete, rearrange, and hide any function buttons based on your daily needs. Whether you want a minimal layout for simple daily arithmetic or a customized panel for advanced scientific calculations, you can design it in one tap. Drag-and-drop operation makes layout adjustment intuitive and effortless, eliminating useless buttons and keeping your most-used functions front and center. Save & Recall Intermediate Results Solve complex multi-step calculations effortlessly! Store any intermediate values during your computing process with one click. Access, edit, or reuse saved results anytime without rewriting formulas or retyping numbers. Perfect for accounting, engineering calculations, student homework, and daily multi-step math tasks, greatly reducing calculation errors and saving your time. Designed for iOS devices, CustomCalc delivers smooth, ad-free calculating performance. Customize your layout, organize your data, and calculate smarter today!

About

Dual Calculator

Features
Read full description

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 • TWO CALCULATORS ON ONE SCREEN Run two separate calculations side by side and keep both results visible at the same time. • INSTANT VALUE TRANSFER Move a result from one calculator to the other with a tap. Continue your calculations without memorizing or retyping numbers. • BASIC CALCULATOR Handle everyday calculations quickly with a simple and easy-to-use interface. • SCIENTIFIC CALCULATOR Access scientific functions when you need more advanced calculations for math, science, engineering, or study. • COMPARE RESULTS EASILY Calculate different values simultaneously and compare your results without losing your previous calculation. • BUILT FOR MULTITASKING Perfect when one calculator isn't enough. Work with two calculations independently while keeping everything visible. • 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

Big Yellow Calculator3 screens
Dual Calculator3 screens

Verdict

The call

The clearest difference is in-app purchases: Dual Calculator at none against Big Yellow Calculator's 1. Big Yellow Calculator's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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

Both are free to download. Big Yellow Calculator sells 1 one-off in-app purchase. Dual Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Big Yellow Calculator ships an update every 2 months, Dual Calculator every 4 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
Big Yellow Calculator versus Dual Calculator: the parameters behind the verdict, then further details
ParameterBig Yellow CalculatorDual Calculator
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size1 MB41 MB
Age rating4+4+
Developer山 黄Huzaib Sayyed

In-app purchases

1 purchases

Big Yellow Calculator

One-time1
  • Unlock all features$0.99
None

Dual Calculator

No in-app purchases

Questions

Is Big Yellow Calculator free?
Big Yellow Calculator is free to download, with in-app purchases available.
Is Dual Calculator free?
Dual Calculator is free to download, with no in-app purchases.
Do Big Yellow Calculator or Dual Calculator have ads?
Dual Calculator shows ads; Big Yellow Calculator does not.
Which is updated more often, Big Yellow Calculator or Dual Calculator?
Big Yellow Calculator ships an update every 2 months, and Dual Calculator every 4 months. Most recently, Big Yellow Calculator was updated on November 3, 2026 and Dual Calculator on October 28, 2026.

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