Comparison

Calculator basic vs CalculatorDU

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

Head to head
About

Calculator basic

Personalize your calculation experience with customizable buttons, wallpapers, and themes. Adjust layouts for portrait and landscape modes on your devices for optimal viewing and ease of use.

Highlights
  • Customizable button positions and functions
  • Set custom wallpapers and background colors
  • Adjustable button shapes, sizes, and dimensions
  • Multiple calculation methods and rounding modes
  • Free adjustment of character and background colors
  • History log with overwrite or add options
Features
Read full description

Calculator Basic can change the position and the function of the button and set the wallpaper background freely, not to mention the color and the shape. The screen layout will change automatically according to the portrait or landscape mode on your iPad and iPhone and the big buttons fitted to the size and mode of display are easy to view for the user. Let's create your own calculator suitable for your tastes by using abundant setting well. FEATURES : Calculation : - Two Calculation method: functional or sequential - Three rounding mode: rounding , up or cut - Number of digits after the decimal point: free , zero , one , two , three or four - Angle unit: degree or radian Appearance : - Color or Wallpaper: Set the wallpaper with a photograph or a camera, or select a background color - Number Format: Select a digit grouping and decimal point from among the 8 types including India format - Sound of buttons : Select the button sound from nine timbres or turn off Result: - Character color: Freely set color by the slider - Background color: Freely set color and opacity by the slider - Expression color: Freely set color or hide by the slider Button : - Shape: Square , Round Square , Circle , Diamond , Heart or Cogwheel - Size: Large , Medium or Small - Dimensions: Flat , Solid or Outline - Character color: Freely set color by the slider - Background color: Freely set color and opacity by the slider - Position: The position of buttons are freely changed - Function button : Three function buttons can be changed, thease button is include Grand total, Rand, Sine,1/x, Route, etc... History : - Equals: Over write last result or Add the result the history - Vertical (portrait) mode: Indication Left , Hidden or Indication Right - Horizontal (landscape) mode: Indication place Left or Right - character color: Freely set color by the slider - background color: Freely set color and opacity by the slider - Expression color: Freely set color or hide by the slider SUPPORTS : Non retina and Retina display on iPhone, iPad and iPod Touch. iPhone 4 to 8 Plus, iPhone SE and iPhone X, iPad 2 to iPad Pro and iPad mini to iPad mini 4 , iPod touch 3gen and later. iOS 8.0 and later. There is also a paid version without ads.

About

CalculatorDU

This utility app offers a straightforward calculator for daily use. It supports basic arithmetic, value storage, and calculation verification. Customize display formats and symbols for a personalized experience.

Highlights
  • Basic arithmetic operations
  • Value storage and retrieval
  • Calculation verification
  • Copy and paste functionality
  • Customizable numerical display
  • Portrait and landscape modes
Features
Read full description

A simple, free calculator app. It provides basic calculation, value storage, and verification. # Arithmetic operations Perform addition, subtraction, multiplication, division, and square root operations. # Save value Input values and calculated values can be saved for later use. # Check You can verify the calculation process. # Copy and paste You can copy and paste numerical values. # Operation symbols You can select multiplication and division symbols. # Numerical display format You can select decimal points, delimiters, and split digit groups. # Digits Displays up to 21 digits for calculations. # Language You can change the display language. # Orientation Works in both portrait and landscape modes.

Screenshots

Calculator basic4 screens
CalculatorDU4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator basic at none against CalculatorDU's 1. Calculator basic also leads on ads (none vs shown) and rating (5.0 vs 4.7). CalculatorDU's advantage is ratings volume (15 vs 2). On price, update cadence 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. CalculatorDU sells 1 one-off in-app purchase. Calculator basic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator basic holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CalculatorDU has 15 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Calculator basic ships an update every 3 months, CalculatorDU every 2 months. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator basic versus CalculatorDU: the parameters behind the verdict, then further details
ParameterCalculator basicCalculatorDU
PriceFreeFree
Rating5.0 (2 ratings) — better4.7 (15 ratings)
Positive reviews100.0% of reviews—
Number of ratings215 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size6 MB87 MB
Age rating4+4+
DeveloperKenichi YoshikawaHappyCode Lab

Customer experience

Calculator basic

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CalculatorDU

All ratings15 ratings
Positive93.3%
Neutral6.7%
Negative0.0%

In-app purchases

None

Calculator basic

No in-app purchases

1 purchases

CalculatorDU

One-time1
  • Hide ads$2.99

Questions

Is Calculator basic free?
Calculator basic is free to download, with no in-app purchases.
Is CalculatorDU free?
CalculatorDU is free to download, with in-app purchases available.
Which has better reviews, Calculator basic or CalculatorDU?
Calculator basic is rated higher. Calculator basic averages 5.0 out of 5 from 2 ratings, while CalculatorDU averages 4.7 from 15 ratings.
Do Calculator basic or CalculatorDU have ads?
CalculatorDU shows ads; Calculator basic does not.
Which is updated more often, Calculator basic or CalculatorDU?
Calculator basic ships an update every 3 months, and CalculatorDU every 2 months. Most recently, Calculator basic was updated on October 10, 2026 and CalculatorDU on October 21, 2026.

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