Comparison

RedCrab Calculator vs Input Calculator

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

Head to head
About

RedCrab Calculator

Features
Read full description

The RedCrab Calculator is an efficient and powerful tool designed for students, engineers, professionals, and everyday users. Whether you're handling simple daily expenses or complex engineering algebra, it provides a precise and lightning-fast calculation experience. Combining an elegant modern UI with a robust calculation engine, every tap is a seamless experience. Key Features: - Basic & Advanced Calculations : Flawlessly supports basic arithmetic alongside advanced scientific functions including trigonometry (sin, cos, tan), logarithms (log, ln), exponents (^), roots (ⁿ√x), and modulo (%). - Smart Expression Parsing : Supports nested parentheses and long expression inputs. It strictly follows mathematical order of operations, displaying exactly what you calculate to ensure accuracy in complex equations. - History & Result Reuse : Automatically saves your calculation history. The dedicated "Ans" button allows you to instantly recall your last answer, making multi-step calculations a breeze. - High-Precision Display : Optimized large number display logic supports showing more significant digits, eliminating the frustration of forced and hard-to-read scientific notation. - Dark Mode & Modern UI : Native support for Dark Mode to protect your eyes. Carefully tuned button layouts, smooth highlight touch feedback, and dynamic font scaling deliver an ultimate user experience. - VIP Privileges : Unlock VIP membership to enjoy a pure, ad-free, immersive calculation experience, along with access to exclusive premium features. Scientific Calculator: Making numbers clearer and calculations smarter.

About

Input Calculator

This app offers both basic and scientific calculation modes, supporting a wide range of operations including trigonometry and logarithms. It features a clear expression display, customizable themes, and haptic feedback for an enhanced user experience.

Highlights
  • Basic and scientific calculation modes
  • Trigonometric and logarithmic functions
  • Full expression display
  • Dark and light mode options
  • Haptic feedback on button press
  • Theme customization
  • Responsive layout for various devices
Features
Read full description

Basic Calculator Mode: -Perform basic arithmetic operations such as addition, subtraction, multiplication, and division. -Supports decimal operations and percentage calculations. -Clear (C) button to reset the calculator. Scientific Calculator Mode: -Toggle between Basic and Scientific modes. -In Scientific Mode, additional operations are available, including: -Trigonometric functions: sin, cos, tan -Logarithmic function: log -Constants: Pi (π), Euler’s Number (e) -Exponentiation (^) and Square Root (√). -The app allows easy switching between the two modes. Full Expression Display: -As users type their expressions (e.g., 2 + 3 * 5), the full expression is displayed at the top of the screen for clarity before calculating the result. Dark Mode & Light Mode: -Users can toggle between dark mode and light mode for better accessibility and comfort based on lighting conditions. Haptic Feedback: -Subtle haptic feedback is provided when buttons are pressed, enhancing the tactile experience of using the calculator. Theme Customization: -The app offers various color themes that users can cycle through, allowing them to personalize the look and feel of the calculator. Always Visible Scroll Bar: -The app features a persistent scroll bar on the right-hand side, even when content fits within the screen, ensuring a consistent user experience. Responsive Layout: -The app dynamically adjusts its layout based on screen size, ensuring it works smoothly across different devices, including phones and tablets.

Screenshots

RedCrab Calculator4 screens
Input Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Input Calculator at none against RedCrab Calculator's 1. Input Calculator also leads on ads (none vs shown). RedCrab Calculator's advantage is iOS requirement (15.6 vs 18.0). On price 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. RedCrab Calculator sells 1 one-off in-app purchase. Input Calculator asks for nothing beyond the download.

Scorecard3 real differences · 7 level
RedCrab Calculator versus Input Calculator: the parameters behind the verdict, then further details
ParameterRedCrab CalculatorInput Calculator
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyFortnightly—
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size4 MB1 MB
Age rating4+4+
Developer少泽 梁Shafqat Rahman

In-app purchases

1 purchases

RedCrab Calculator

One-time1
  • 终身会员$1.99
None

Input Calculator

No in-app purchases

Questions

Is RedCrab Calculator free?
RedCrab Calculator is free to download, with in-app purchases available.
Is Input Calculator free?
Input Calculator is free to download, with no in-app purchases.
Do RedCrab Calculator or Input Calculator have ads?
RedCrab Calculator shows ads; Input Calculator does not.

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