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▸ Calculator +

▸ Calculator +

Scientific Calculator

832 ratings
257 reviews
🔧 Utilities
📊 Productivity
$1.99
In-App Purchases

Details

  • Released
  • Updated
  • October 24, 2011
  • September 24, 2019

Features

Developer

CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC
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▸ Calculator + screenshot #1 for iPhone
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🧾$0.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐257
Reviews↘︎
📝5+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app offers a comprehensive suite of 12 calculators, including scientific, currency, unit, and finance functions. It features advanced modes, extensive formula support, and a user-friendly interface for all calculation needs.

✓12 specialized calculators
✓Over 800 formulas
✓Scientific, RPN, and String modes
✓Unit and currency conversion
✓Finance and date/time calculations
✓Equation solver and graphing
✓History and expression export
Show original description

What users say

Summarized from real user reviews of ▸ Calculator +. Based on 832 reviews and a 4.7/5 average, it highlights the 6 positives and 11 negatives reviewers mention most about this Utilities app.

Positive things

  • 👍Handy to use application
  • 🔢Great calculator
  • 📊Excellent for engineering & other use
  • 🔢Very useful
  • 🔢Excellent interface
  • 🔢Fully featured

Negative things

  • 🐛Date function does not fit iPhone screen
  • 🐛Alternate calculators no longer work
  • 🐛Good calculator but not all function work
  • 🐛Overall Good, but bugs have crept it
  • 🐛Needs an update for new phones
  • 🐛No longer works
  • 🐛Money totally wasted
  • 🐛Used to be amazing. Now all it does is crash
  • 🐛Doesn't fit the screen
  • 🐛Annoying pop up!
  • 🐛It now lags
See all reviews

What's New in ▸ Calculator +

5.3

September 24, 2019

- Fix bugs on iPhone X and iOS 13

4

In-App Purchases

$0.99

Formula Toolkit

700+ formulas in categories: ★ Astrophysics ★ Dynamics and mechanics ★ Electric Engineering ★ Math ★ Optics ★ Thermodynamics ★ Finance: 86 formulas

More

User reviews

Most RecentHighest RatedLowest Rated

Its also available on ipad! Great work!

Congratulations! give yourself a stamp! but wait... its missing trigonometry... yeah, TRIGONOMETRY IS MISSING!!!
jdhardy000jdhardy000

Super calculatrice

Plein de fonction et en plus la récupération de résultat de calcul pour les intégrer à de nouveau calcul super bien.
SpeedmichSpeedmich

Date function does not fit iPhone screen

I have been using this app for years. It was the best unit conversion app because it provides all kinds of unit conversion including the date function in that you can add and subtract from any date, or find the difference between two dates. Unfortunately since 2023, the calculator doesn't fit the screen when doing time/date, add/subtraction operations. I have submitted two feedbacks to the developer without seeing any bug fix on this issue. I am using iPhone 17 with iOS 26.2
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InTheMntInTheMnt

Handy to use application

I use this application every day to convert temperatures between Fahrenheit and Celsius, and I frequently use it to calculate the time between dates over long periods, especially how it relates to setting target dates. I love how easy it is to use. I also use it to do a lot of conversion of area and volume, for example, converting square miles into acres.
Show more
CC MusicianCC Musician

Alternate calculators no longer work

Suddenly if I try to scroll to any calc beyond basic or scientific (unit converter, for example) the app crashes and closes down.
This has been my go to calc since it came out. Now it’s no better than the lame calculator that comes with the iOS. 😡
Ron995Ron995
See 252 more reviews

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User experience

🐞

Reported Bugs

5 issues

Date/Time screen cutoff at bottom and missing keyboard icon

Bug

Currency exchange not working

Bug

Periodic Taple option of HiCalcac pro is not compatible eith iOs 10

Bug

Crashes in iOS 10

Bug

Gig to meg conversion is incorrect

Bug
✨

Requested Features

5 requests

Dark mode option

Feature

Advanced analytics dashboard

Feature

Landscape mode support

Feature

Equation solver for non-polynomials

Feature

Auto-display of graph coordinates

Feature

FAQ

What does this calculator app do?

This app provides a powerful and versatile calculator with 12 different specialized tools. It includes basic, scientific, currency conversion, unit conversion, finance, date-time calculations, equation solving, statistics, base conversion, graphing, and a tip calculator. It also offers over 800 formulas within its Formula Toolkit.

What are the key features of this calculator?

Key features include multiple calculating modes (Standard, String, RPN), precision up to 31 digits, a comprehensive unit converter with over 3,300 units, a currency converter with daily updates, advanced scientific functions, an equation solver for polynomials and simultaneous equations, and a graphing calculator for up to three graphs.

Is this app free to use?

The app is free to download and use, but it offers in-app purchases. This means that while the core functionality is available for free, certain advanced features or content might require a purchase to unlock.

What kind of calculations can I perform with the scientific calculator?

The scientific calculator supports a wide range of functions including trigonometric (sin, cos, tan, and their inverses), hyperbolic (sinh, cosh, tanh, and their inverses), logarithmic (log, ln), and advanced functions like nPr, nCr, differential and integration functions, root-finder, product function, GCD, LCM, and Fibonacci. It also handles complex numbers in STRING mode.

Who would benefit from using this app?

This app is ideal for students studying math, science, or engineering, as well as professionals who require precise calculations for finance, engineering, or data analysis. Its extensive features make it suitable for anyone needing more than a basic calculator.