Comparison

RedCrab Calculator vs iPocket 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

This powerful scientific calculator offers a modern UI and robust engine for users of all levels. It handles basic arithmetic to complex engineering equations with smart expression parsing and a high-precision display. Enjoy a seamless calculation experience with features like history recall and dark mode.

Highlights
  • Basic & Advanced Calculations
  • Smart Expression Parsing
  • Calculation History & Reuse
  • High-Precision Display
  • Dark Mode & Modern UI
  • VIP Ad-Free Experience
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

iPocket Calculator

This app provides a fast and intuitive interface for basic and advanced calculations. Users can personalize the look with customizable themes and colors for a tailored experience. Enjoy smooth, user-friendly operation and quick, reliable results on the go.

Highlights
  • Customizable themes
  • Sleek and modern interface
  • Fast calculations
  • User-friendly experience
  • Share or print results
Read full description

Pocket Calculator: Simple, Elegant, and Customizable Pocket Calculator offers a fast and intuitive interface for all your basic and advanced calculation needs. Customize the look with themes and colors of your choice, and enjoy a smooth, user-friendly experience tailored just for you. Key Features: Fully customizable themes for a personalized experience Sleek and modern interface designed for easy use Performance improvements for faster calculations Perfect for anyone who needs quick, reliable calculations on the go.

Screenshots

RedCrab Calculator4 screens
iPocket Calculator4 screens

Verdict

The call

The clearest difference is ads: iPocket Calculator at none against RedCrab Calculator's shown. RedCrab Calculator's advantage is update cadence (fortnightly vs every 10 months) and iOS requirement (15.6 vs 17.0). On price, in-app purchases, monetization model 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 and iPocket Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RedCrab Calculator ships an update fortnightly, iPocket Calculator every 10 months. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 7 level
RedCrab Calculator versus iPocket Calculator: the parameters behind the verdict, then further details
ParameterRedCrab CalculatoriPocket Calculator
PriceFreeFree
Rating—4.8 (4 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—4 — better
Update frequencyFortnightly — betterEvery 10 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better17.0
Further details — not scored
Size5 MB24 MB
Age rating4+4+
Developer少泽 梁Mahmoud Suliman

Customer experience

RedCrab Calculator

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

iPocket Calculator

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

RedCrab Calculator

One-time1
  • 终身会员$1.99
1 purchases

iPocket Calculator

One-time1
  • Premium Features$1.99

Questions

Is RedCrab Calculator free?
RedCrab Calculator is free to download, with in-app purchases available.
Is iPocket Calculator free?
iPocket Calculator is free to download, with in-app purchases available.
Do RedCrab Calculator or iPocket Calculator have ads?
RedCrab Calculator shows ads; iPocket Calculator does not.
Which is updated more often, RedCrab Calculator or iPocket Calculator?
RedCrab Calculator ships an update fortnightly, and iPocket Calculator every 10 months. Most recently, RedCrab Calculator was updated on October 15, 2026 and iPocket Calculator on October 21, 2026.

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