Calculator basic vs CalculatorDU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Basic arithmetic operations
- Value storage and retrieval
- Calculation verification
- Copy and paste functionality
- Customizable numerical display
- Portrait and landscape modes
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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
Verdict
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
Both are free to download. CalculatorDU sells 1 one-off in-app purchase. Calculator basic asks for nothing beyond the download.
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.
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.
| Parameter | Calculator basic | CalculatorDU |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.7 (15 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 15 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenichi Yoshikawa | HappyCode Lab |
Customer experience
Calculator basic
CalculatorDU
In-app purchases
Calculator basic
No in-app purchases
CalculatorDU
- Hide ads$2.99
Questions
Is Calculator basic free?
Is CalculatorDU free?
Which has better reviews, Calculator basic or CalculatorDU?
Do Calculator basic or CalculatorDU have ads?
Which is updated more often, Calculator basic or CalculatorDU?
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