Comparison

BigInt Calculator vs Basic Calculator.

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

Head to head
About

BigInt Calculator

This app offers a fast, multi-threaded calculator with a spreadsheet-like interface for easy editing and instant updates. It handles large numbers and complex expressions with arbitrary-precision arithmetic, making it suitable for various real-world calculations.

Highlights
  • Table-based input with step-by-step editing
  • Automatic real-time recalculation
  • Handles complex expressions with parentheses and exponents
  • Arbitrary-precision arithmetic for massive numbers
  • 3 independent workspaces
  • Universal support for iPhone, iPad, and Mac
Features
Read full description

A calculator for those who need more than standard precision. Integers of any size stay exact — no overflow, no lost digits. Fractions and square roots are shown to 10, 50, 100 or 1000 decimal places, as you choose. Multiplying numbers thousands of digits long takes milliseconds, and independent parts of an expression are computed in parallel on all CPU cores. Features - Addition, subtraction, multiplication, division - Powers and square roots (0.5, 1.5, 2.5…) - Parentheses and correct operator precedence - mod with fast modular powers: 3^(2^127-2) mod (2^127-1) takes an instant - Factorial (!) and the functions gcd, lcm, binom, isprime and nextprime - Hexadecimal and binary: integer results in hex, numbers like 0xff and 0b101 - Scientific notation (6.022e23) and superscript powers (2¹²⁷) - Three independent tabs M1, M2, M3 for parallel work - Keyboard bar with ( ) − √ ! on iPhone and iPad - Your tabs are saved between launches; Undo after clearing - History of recent calculations - A result screen with as many digits as fit, the digit count and the order of magnitude; ≈ marks results that are not exact - Every digit of a huge result in numbered rows, with a jump to any digit - Live progress and elapsed time for long calculations, with a Cancel button - Copy the result with one tap and the expression from the menu; share a result as text, a file or an image card - VoiceOver support; on Mac, menu commands and keyboard shortcuts - Built-in help with examples - Alternative symbol support: × ÷ : and a comma as decimal separator How it works Type a power with ^: 2^127-1. An exponent of 0.5 is a square root: 2^0.5. Parentheses work as in mathematics: (2+3)*4. mod has the lowest precedence: 2^255-19 mod 8. Function arguments are separated by a semicolon: gcd(12; 18). On iPhone, functions and 0x numbers are typed on a hardware keyboard or pasted. Who it's for - Students and math teachers - Developers working with cryptography and large primes - Number theory researchers - Anyone hitting the limits of ordinary calculators No ads, no trackers, no accounts. Works on smartphone, tablet, and computer.

About

Basic Calculator.

A straightforward and user-friendly calculator app designed for quick calculations. It features a display log, a backspace key for corrections, and supports both decimal points and commas.

Highlights
  • Display log for calculations
  • Backspace key for corrections
  • Decimal point and comma support
  • Designed for quick calculations
  • User-friendly interface
Features
Read full description

Introducing the ultimate basic calculator app - simple, easy-to-use, and packed with features to help you get the job done. Our calculator is designed with you in mind, whether you're a student, a professional, or just need to do some quick calculations. We've also included a a display log for your calculation and result, a backspace key for correcting or changing numbers, and support for decimal point or decimal comma Download our calculator app today and see for yourself why it's the must-have tool for anyone who needs to do quick calculations on the go.

Screenshots

BigInt Calculator4 screens
Basic Calculator.4 screens

Verdict

The call

The clearest difference is in-app purchases: BigInt Calculator at none against Basic Calculator.'s 1. BigInt Calculator also leads on ads (none vs shown). Basic Calculator.'s advantage is ratings volume (147 vs 4) and rating (4.7 vs 4.5). 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. Basic Calculator. sells 1 one-off in-app purchase. BigInt Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Basic Calculator. holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Basic Calculator. has 147 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

BigInt Calculator ships an update every 3 weeks, Basic Calculator. every 2 weeks. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

Scorecard6 real differences · 4 level
BigInt Calculator versus Basic Calculator.: the parameters behind the verdict, then further details
ParameterBigInt CalculatorBasic Calculator.
PriceFreeFree
Rating4.5 (4 ratings)4.7 (147 ratings) — better
Positive reviews40.0% of reviews—
Number of ratings4147 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.013.0 — better
Further details — not scored
Size2 MB69 MB
Age rating4+4+
DeveloperViktor PobedriaEdison Largo

Customer experience

BigInt Calculator

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews5 reviews
Positive40.0%
Neutral60.0%
Negative0.0%

Basic Calculator.

All ratings147 ratings
Positive89.8%
Neutral5.4%
Negative4.8%

In-app purchases

None

BigInt Calculator

No in-app purchases

1 purchases

Basic Calculator.

One-time1
  • Remove Ads$3.99

Questions

Is BigInt Calculator free?
BigInt Calculator is free to download, with no in-app purchases.
Is Basic Calculator. free?
Basic Calculator. is free to download, with in-app purchases available.
Which has better reviews, BigInt Calculator or Basic Calculator.?
Basic Calculator. is rated higher. BigInt Calculator averages 4.5 out of 5 from 4 ratings, while Basic Calculator. averages 4.7 from 147 ratings.
Do BigInt Calculator or Basic Calculator. have ads?
Basic Calculator. shows ads; BigInt Calculator does not.
Which is updated more often, BigInt Calculator or Basic Calculator.?
BigInt Calculator ships an update every 3 weeks, and Basic Calculator. every 2 weeks. Most recently, BigInt Calculator was updated on September 23, 2026 and Basic Calculator. on September 14, 2026.

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