Comparison

Big Yellow Calculator vs Calculator Plus Basic & PEMDAS

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

Calculator Plus Basic & PEMDAS

This app offers a customizable calculator experience with a clean interface and advanced features like PEMDAS mode and calculation history. Personalize its appearance with numerous themes and button styles to suit your preferences.

Highlights
  • PEMDAS order of operations mode
  • Over 50 customizable color themes
  • Full calculation history
  • Adjustable decimal precision
  • Copy and paste functionality
  • Sales tax calculations
Features
Read full description

Combining powerful calculations with fully customisable design — so your calculator looks and works just how you want it to! Built For Speed & Simplicity: Clean, simple, intuitive layout Instant, responsive calculations Large easy to read buttons and numbers Switch between standard and order of operations (PEMDAS) modes effortlessly Make It Yours: Over 50 color themes available, with more added regularly High-contrast colour themes for visually impaired users Favorite your top themes for quick switching Request your very own color theme Choose round or square buttons Smart Features That Matter: Full calculation history with US format date & timestamps - store up to a year of results Adjustable decimal precision Copy & paste from the display or calculation history Retro LCD or modern display Customisable haptic feedback intensity Sound effects on or off Optimized layouts for both iPhone and iPad Sales Tax calculations Currency conversions Speaking calculations Tips calculator Unit price calculator Discount percentage calculator Premium: Upgrade to Premium with a one-time purchase and: Unlock all Premium color themes and features forever on your iPhone and iPad No subscription Reasons to Love it: No clutter, no confusion — just an intuitive, great looking calculator Personalisation without limits

Screenshots

Big Yellow Calculator3 screens
Calculator Plus Basic & PEMDAS4 screens

Verdict

The call

The clearest difference is ads: Big Yellow Calculator at none against Calculator Plus Basic & PEMDAS's shown. Big Yellow Calculator also leads on monetization model (free vs free with in-app purchases) and iOS requirement (15.6 vs 17.0). Calculator Plus Basic & PEMDAS's advantage is update cadence (weekly vs every 2 months) and ratings volume (5 vs 1). On price, rating, 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

Both are free to download. Big Yellow Calculator sells 1 one-off in-app purchase and Calculator Plus Basic & PEMDAS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Big Yellow Calculator against 5.0 for Calculator Plus Basic & PEMDAS. That said, the two scores are not equally well evidenced: Calculator Plus Basic & PEMDAS has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Big Yellow Calculator ships an update every 2 months, Calculator Plus Basic & PEMDAS weekly. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 5 level
Big Yellow Calculator versus Calculator Plus Basic & PEMDAS: the parameters behind the verdict, then further details
ParameterBig Yellow CalculatorCalculator Plus Basic & PEMDAS
PriceFreeFree
Rating5.0 (1 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size1 MB91 MB
Age rating4+4+
Developer山 黄Paul Flowers

Customer experience

Big Yellow Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Calculator Plus Basic & PEMDAS

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Big Yellow Calculator

One-time1
  • Unlock all features$0.99
1 purchases

Calculator Plus Basic & PEMDAS

One-time1
  • More Beans Calculator$4.99

Questions

Is Big Yellow Calculator free?
Big Yellow Calculator is free to download, with in-app purchases available.
Is Calculator Plus Basic & PEMDAS free?
Calculator Plus Basic & PEMDAS is free to download, with in-app purchases available.
Which has better reviews, Big Yellow Calculator or Calculator Plus Basic & PEMDAS?
Big Yellow Calculator and Calculator Plus Basic & PEMDAS are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.
Do Big Yellow Calculator or Calculator Plus Basic & PEMDAS have ads?
Calculator Plus Basic & PEMDAS shows ads; Big Yellow Calculator does not.
Which is updated more often, Big Yellow Calculator or Calculator Plus Basic & PEMDAS?
Big Yellow Calculator ships an update every 2 months, and Calculator Plus Basic & PEMDAS weekly. Most recently, Big Yellow Calculator was updated on October 12, 2026 and Calculator Plus Basic & PEMDAS on October 18, 2026.

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