Comparison

ReadableCalc vs Big Number Calculator Pro

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

Head to head
About

ReadableCalc

Features
Read full description

ReadableCalc is a calculator app that displays large numbers—like 3 trillion 500 billion—in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features • Supports four basic operations (+, −, ×, ÷) • Displays results in English numeric units for easy readability • Handles decimals and negative numbers • DEL button for deleting one character at a time (Long press to clear the entire expression) • Long press on expressions or results to copy • Tap on the “readable” result to toggle display between: • Short scale / Long scale / Kanji numerals Additional features in landscape mode: • “00”, “000”, and “0000” buttons for quickly adding zeros • “x²” and “x³” buttons for quick exponentiation Note: • Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. • Short scale and Long scale support numbers up to 10^198. • Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.

About

Big Number Calculator Pro

Features
Read full description

Big Number Calculator Pro is a powerful calculator app designed to handle extremely large numbers that regular calculators simply can't process. Whether you're working with massive integers, performing high-precision arithmetic, or exploring mathematical problems beyond typical limits, this app is built to deliver accurate and efficient results. * Key Features: Supports calculations with very large integers and decimal numbers High-precision arithmetic operations (addition, subtraction, multiplication, division, exponentiation, etc.) Copy results to clipboard and paste input data from other sources Clean and user-friendly interface Ideal for mathematicians, engineers, researchers, and students needing extended numerical capabilities Optimized performance for handling complex, large-scale computations Big Number Calculator Pro breaks the boundaries of standard calculators—perfect for anyone who needs serious number-crunching power.

Screenshots

ReadableCalc3 screens
Big Number Calculator Pro4 screens

Verdict

The call

The clearest difference is price: ReadableCalc at Free against Big Number Calculator Pro's $0.99. ReadableCalc also leads on iOS requirement (12.0 vs 15.6). On ads, 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

ReadableCalc is free to download; Big Number Calculator Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level
ReadableCalc versus Big Number Calculator Pro: the parameters behind the verdict, then further details
ParameterReadableCalcBig Number Calculator Pro
PriceFree — better$0.99
Update frequencyWeekly—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size28 MB24 MB
Age rating4+4+
DeveloperYONAGARE LABTuyen Nguyen

In-app purchases

None

ReadableCalc

No in-app purchases

None

Big Number Calculator Pro

No in-app purchases

Questions

Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Is Big Number Calculator Pro free?
Big Number Calculator Pro costs $0.99, with no in-app purchases.
Do ReadableCalc or Big Number Calculator Pro have ads?
Neither ReadableCalc nor Big Number Calculator Pro shows ads.

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