Comparison

Calculator Max vs Sci

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

Head to head
About

Calculator Max

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

Highlights
  • Basic and scientific calculators
  • History tape with export options
  • Handwritten notes and equation solving
  • Multitasking support on iPad
  • Customizable themes and app icons
  • Home Screen and Lock Screen widgets
Features
Read full description

Calculator Max makes both simple and complex calculations easy. It offers all calculators you’ll ever need in one carefully designed, uncluttered and easy-to-use package. Switching between calculators is buttery-smooth and natural. The basic calculator with big buttons swiftly handles everyday tasks. The more advanced scientific calculator is loaded with all important mathematical functions and constants. A history tape with your entries is comfortably accessible in all calculator modes. Thanks to it, you never lose track of what you’ve entered and the entries can be reused effortlessly in your calculations. The tape can also be exported to common formats and shared or printed. On the large screen of any iPad it is pure joy to make handwriting notes or draw your ideas right in the app. Write down any math equation and let the app calculate it for you in the blink of an eye. Or reuse any handwriting which you can easily convert to editable text. ————————— WHAT YOU GET ————————— /// POWERFUL CALCULATOR /// — Basic calculator with big buttons — Scientific calculator packed with functions and constants — History tape with the calculations at your fingertips in all modes — Extensive rounding options (e.g. two decimal places for accounting) — Up to 5 memory slots for frequent numbers — Plain Text, Monospaced Text, CSV, PDF and image export formats — Advanced export, share and print options — Scribble Pad on iPad for easy math equations solving, handwritten notes and sketches /// PRODUCTIVE WORKFLOW /// — Side tape layouts for easier long records handling — Clean and uncluttered interface with refined haptic feedback — Multitasking support on iPad for side-by-side work — External keyboard support for even faster input and app control — Universal app for all your iPhones, iPads and Macs — User interface precisely adapted for each device capabilities /// FAST ACCESS /// — Home Screen widgets with last calculations and memory — Widgets for direct access from the Lock Screen — Control Center and Lock Screen fast access buttons /// MIGHTY SCRIBBLE PAD /// — The right place for your quick notes and sketches — Easily calculates any written down math equation — Recognizes your handwriting and converts it to editable text — Fully-fledged notebook with unlimited number of paper sheets — Exportable as text, image or PDF — Optimized for your finger as well as Apple Pencil — Support for LAMY and Adonit styluses (on iPad) — Available on all iPad models /// EXTENSIVE CUSTOMIZATION /// — Handcrafted design themes with dark mode support — Loads of app icons you can easily choose from the best one for your Homescreen — Carefully selected sound sets Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sci

This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.

Highlights
  • Multi-mode calculator (Basic, Scientific, Programmer)
  • Calculation history
  • Share results via email
  • Copy & paste values
  • Configurable display precision
  • Retina graphics
Features
Read full description

Sci:Pro Calculator is a simple multi-mode calculator for your iPhone, iPad, and iPod Touch (Universal App). The app features three modes of operation: Basic, Scientific, and Programmer. Each mode features an easy-to-access history view and support for sharing results using e-mail or by copying & pasting values to and from other applications. This is our first app for the App Store and we’re making the first version free for everyone to use without ads. If you like the app please take a moment to rate it for us. if you encounter any bugs or problems while using it please let us know and we’ll do our best to fix them as quickly as possible. App Features: • No Ads! • Multi-mode Calculator (Basic, Scientific, Programmer) • Calculation History (Swipe up/down to access) • Full screen key layouts (in all orientations) • Multiple Copy & Paste Formats • Share Results via Email (Plain Text, HTML) • Memory Keys (M+,M-,MC,MR) • Configurable Display Precision (2 to 15 digits) • User Interface Sounds (Configurable: on/off) • Retina graphics (Optimized for all devices) Basic Mode: • High-Precision Floating Point (2-15 digits display precision) • Selectable Display Formats (Standard, Scientific, Engineering) • Basic Math Functions (+, -, ×, ÷) • Percent Key/Mode (Single value or Expression-based) • Parentheses Keys (Expression Grouping/Nesting—iPad Only) Scientific Mode: • High-Precision Floating Point (2-15 digits display precision) • Selectable Display Formats (Standard, Scientific, Engineering) • Basic Math Functions (+, -, ×, ÷, modulo) • Percent Key/Mode (Single value or Expression-based) • Parentheses Keys (Expression Grouping/Nesting) • Trigonometric Functions (Normal, Inverse, and Hyperbolic) • Selectable Trig. Mode (Degrees, Radians) • Exponent Functions (2^x, 10^x, x^y, x², x³ e^x) • Root Functions (√, ³√, x√y) • Logarithmic Functions (Log2, Log10, Ln) • Other Functions (random, Exponent, Factorial, 1/x) • Numerical Constants (π, e) Programmer Mode: • 64 bit Integer Values • Radix Modes & Conversion (Binary, Decimal, Hexadecimal, Octal) • Integer Math Functions (+, -, ×, ÷, MOD) • Bitwise Operators (AND, OR, NOR, XOR) • Bit Shift and Rotate (Single & Multiple bit) • Signed Number Operations (1’s & 2's Complement) • Byte-Flip, Word-Flip • Bit Count • Random Integer • Parentheses Keys (Expression Grouping/Nesting) • Full-time Binary View (iPad Only) • Encoding Views (ASCII, Unicode, RGB) • Multiple Copy Formats (Binary, Hex, Decimal, ASCII, Unicode, RGB value) • Multiple Paste Formats (Decimal, Hex, Octal, and Binary values)

Screenshots

Calculator Max4 screens
Sci4 screens

Verdict

The call

The clearest difference is review sentiment: Sci at 93% against Calculator Max's 55%. Sci also leads on rating (4.8 vs 4.3) and in-app purchases (none vs 2). On price, ratings volume, update cadence and ads 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. Calculator Max sells 2 in-app purchases, starting at $4.99 per year. Sci asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sci holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 1.8K and 3.6K respectively. Written reviews point the same way: 55% of Calculator Max's written reviews are positive against 93% of Sci's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 19, 2026.

Scorecard5 real differences · 5 level
Calculator Max versus Sci: the parameters behind the verdict, then further details
ParameterCalculator MaxSci
PriceFreeFree
Rating4.3 (1.8K ratings)4.8 (3.6K ratings) — better
Positive reviews55.1% of reviews93.1% of reviews — better
Number of ratings1.8K3.6K — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.09.3 — better
Further details — not scored
Size126 MB70 MB
Age rating4+4+
DeveloperPavel KozarekJerry Montgomery

Customer experience

Calculator Max

All ratings1,651 ratings
Positive82.0%
Neutral2.8%
Negative15.2%
Written reviews292 reviews
Positive55.1%
Neutral3.4%
Negative41.4%

Sci

All ratings3,603 ratings
Positive95.9%
Neutral2.3%
Negative1.8%
Written reviews204 reviews
Positive93.1%
Neutral3.9%
Negative2.9%

User reviews

Calculator Max

From 1.8K App Store ratings

What we love

  • 🚀 Easy to use
  • 📝 Useful note-taking feature
  • 💾 Tape/history feature
  • 👍 Clean and intuitive interface
  • 🎨 Customizable appearance

Room to improve

  • 🐛 Compatibility issues with newer iOS versions
  • 📤 Lack of export/sharing options for tape/history
  • 🔍 Difficulty finding settings
  • 🔀 Sensitive orientation switching

Sci

From 3.6K App Store ratings

What we love

  • 🚀 Fast and responsive
  • 👍 Clean and intuitive interface
  • 🔒 No ads or in-app purchases
  • 💡 Versatile with basic, scientific, and programming modes
  • 👍 Useful for a variety of calculations

Room to improve

  • 🐛 Occasional bugs or glitches
  • 🔍 Lack of split-screen support on iPad
  • 🔍 Limited keyboard input support
  • 🔍 Inconsistent behavior when switching between modes

Bugs and requests

Calculator Max

Reported bugs

3 issues
  • Crashes after iOS 26 update
  • Tape not visible/functional on iPhone
  • Calculator buttons/layout issues in split-screen mode

Requested features

5 requests
  • Left-handed mode
  • Backspace/edit functionality
  • Scientific calculator mode with tape
  • Tape annotation/labeling
  • Cloud/Dropbox sync for tape

Sci

Reported bugs

3 issues
  • Incorrect calculations for certain sequences of operations
  • Memory issues when dealing with large numbers or exponents
  • Compatibility problems with newer iOS versions

Requested features

4 requests
  • Ability to configure number of digits displayed
  • Option to change display colors or themes
  • Support for more advanced programming features
  • Integration with other apps or services

In-app purchases

2 purchases

Calculator Max

Subscriptions1
  • Calculator Max Pro7 Days trial$4.991 Year
One-time1
  • Calculator Max Pro$3.99
None

Sci

No in-app purchases

Questions

Is Calculator Max free?
Calculator Max is free to download, with in-app purchases available.
Is Sci free?
Sci is free to download, with no in-app purchases.
Which has better reviews, Calculator Max or Sci?
Sci is rated higher. Calculator Max averages 4.3 out of 5 from 1.8K ratings, while Sci averages 4.8 from 3.6K ratings.
Do Calculator Max or Sci have ads?
Neither Calculator Max nor Sci shows ads.
Which is updated more often, Calculator Max or Sci?
Calculator Max ships an update every 2 months, and Sci every 2 months. Most recently, Calculator Max was updated on October 19, 2026 and Sci on October 19, 2026.

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