Comparison

Calculator vs Calculator ⁺⁻

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

Head to head
About

Calculator

This app offers a comprehensive suite of 15 calculators for everyday and scientific needs. Perform basic arithmetic, complex scientific calculations, and specialized conversions for units, taxes, loans, health, and more with accurate results.

Highlights
  • Classic and Scientific Calculations
  • Unit Converter (length, area, volume, etc.)
  • Sales Tax, Tip, and Discount Calculators
  • Loan and Savings Calculators
  • Health (BMI, BMR) and Ovulation Calculators
  • GPA and Unit Price Calculators
  • Fuel Cost and Efficiency Calculators
Features
Read full description

Do you calculate manually? Bored with your in-built Calculator App? Download this Calculator app and do math calculations easily. With this app, you can smoothly enter your data and get results quickly. With the best calculator app around, relax and do your calculations accurately. This all in one calculator app is going to be your go-to choice for everyday use. Apart from doing fundamental arithmetic operations like addition, subtraction, multiplication, and division, you can do scientific calculations too. If you are looking for a simple calculator along with a scientific calculator, which gives accurate results up to 10 decimal places, this app is among the best calculator app for you. Get the most out of your Unit converter by quickly and easily converting between multiple units of measurement. This unit converter is the perfect tool for converting between units of length, area, volume, speed, temperature, mass, pressure, and more. With a simple and intuitive design, it's easy to use and makes converting units a breeze. * List of calculators that you get in this app: - Classic Calculator: This calculator allows you to perform addition, subtraction, multiplication, and division as well as advanced mathematical calculations. - Scientific Calculator: Do advanced mathematical calculations like logarithmic & trigonometric functions easily. - Sales Tax calculator: Find out before-tax price and final or after-tax price. - Age calculator: Calculate age in years, months, days, or minutes! - Tip calculator: Learn how much you and your friends should leave for a tip, instantly! - Discount calculator: Save money by calculating discounts rapidly and accurately. - Fuel calculator: Enter travel distance, fuel efficiency, and fuel price to know how much your trip will cost. - Fuel Efficiency: Enter mileage before and after fueling to see how efficiently your car uses gas. - Savings calculator: Calculate the savings easily with the best savings calculator. - Loan Calculator: It helps to calculate the monthly payments, interest cost, and total amount to be repaid on a loan over a specified period of time. - Health Calculator: It will calculate the BMI based on height and weight, and BMR which represents the number of calories their body needs to function at rest. - Ovulation Calculator: Predicts fertility window by calculating the date of ovulation for tracking menstrual cycles and optimizing chances of conception. - GPA Calculator: Calculates Grade Point Average (GPA) based on inputted grades and credits for easy academic performance tracking. - Unit Price Calculator: Calculates unit price for comparison shopping by dividing total cost by quantity. - GST Calculator: It will help individuals or businesses determine the amount of GST payable on specific items. - Unit Converter: Easily convert any quantity from one unit into other: length, weight, temperature, speed, density, pressure, etc. It is very helpful during construction work. - World Time: Displays current time in different time zones around the world for easy global time tracking. - Numeral System: Converts numbers between different numeral systems (e.g., decimal, binary, hexadecimal) for easy numerical conversions. * Features: - Perform basic arithmetic (addition, subtraction, multiplication, division) - Add parentheses and math operators - Scientific Calculator including Logarithm, Integer, Radian etc. functions - View calculation history with the history log - Edit and correct data before calculating - Copy the calculated result to the clipboard for easy access - Option to choose from various themes - Easy to read numbers due to clear display format - Share calculations and results easily with others When you go for this calculator app download, not only do your calculations become easier and more accurate but also it helps save your precious time!

About

Calculator ⁺⁻

This app offers both basic and scientific calculation functions for iPhone and iPad. Users can customize its appearance, view calculation history, and perform complex equations with high accuracy. It also provides real-time calculation display and adjustable touch feedback.

Highlights
  • Basic and scientific calculator modes
  • Over 30 scientific operations
  • Calculation history view
  • Real-time calculation display
  • Customizable color themes
  • Adjustable button touch sound/vibration
  • High accuracy calculations (75+ significant digits)
Features
Read full description

Calculator for iPad and iPhone is an easy to use that includes both a standard and scientific calculator. Calculator app allows you to: • Customize the look of the application by changing the color • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • View history of your calculations on the History Tab • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations • Change button touch sound with vibration • Displays real time calculation

Screenshots

Calculator4 screens
Calculator ⁺⁻4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator ⁺⁻ at none against Calculator's 1. Calculator ⁺⁻ also leads on rating (4.7 vs 4.3) and review sentiment (50% vs 33%). Calculator's advantage is update cadence (every 3 months vs every 15 months). On price, ratings volume, ads 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. Calculator sells 1 one-off in-app purchase. Calculator ⁺⁻ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator ⁺⁻ holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 20 and 42 respectively. Written reviews point the same way: 33% of Calculator's written reviews are positive against 50% of Calculator ⁺⁻'s.

UpkeepUpdate frequency

Calculator ships an update every 3 months, Calculator ⁺⁻ every 15 months. Both last shipped on November 7, 2026.

Scorecard5 real differences · 5 level
Calculator versus Calculator ⁺⁻: the parameters behind the verdict, then further details
ParameterCalculatorCalculator ⁺⁻
PriceFreeFree
Rating4.3 (20 ratings)4.7 (42 ratings) — better
Positive reviews33.3% of reviews50.0% of reviews — better
Number of ratings2042 — better
Update frequencyEvery 3 months — betterEvery 15 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size33 MB4 MB
Age rating4+4+
DeveloperRV AppStudios LLCMatrix Software Co.

Customer experience

Calculator

All ratings20 ratings
Positive80.0%
Neutral5.0%
Negative15.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Calculator ⁺⁻

All ratings42 ratings
Positive90.5%
Neutral7.1%
Negative2.4%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

1 purchases

Calculator

One-time1
  • Remove Ads$2.99
None

Calculator ⁺⁻

No in-app purchases

Questions

Is Calculator free?
Calculator is free to download, with in-app purchases available.
Is Calculator ⁺⁻ free?
Calculator ⁺⁻ is free to download, with no in-app purchases.
Which has better reviews, Calculator or Calculator ⁺⁻?
Calculator ⁺⁻ is rated higher. Calculator averages 4.3 out of 5 from 20 ratings, while Calculator ⁺⁻ averages 4.7 from 42 ratings.
Do Calculator or Calculator ⁺⁻ have ads?
Both Calculator and Calculator ⁺⁻ show ads.
Which is updated more often, Calculator or Calculator ⁺⁻?
Calculator ships an update every 3 months, and Calculator ⁺⁻ every 15 months. Most recently, Calculator was updated on November 7, 2026 and Calculator ⁺⁻ on November 7, 2026.

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