Comparison

Function Calc vs Scientific Calculator *

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

Head to head
About

Function Calc

This app offers a powerful, programmable scientific calculator with graphing capabilities. It allows users to create custom functions, store equations, and perform complex calculations with ease. The interface features a visible tape display and supports dictation for statistical analysis.

Highlights
  • Programmable custom functions
  • Graphing capabilities
  • Tape display with edit/undo
  • Unit conversions (120+)
  • Dictate calculations
  • Export graphs (PDF, PNG)
Features
Read full description

A full-function, programmable, graphing scientific calculator designed to be very quick and easy to use, but with the added power of customisation. Tape display is visible while you type, and a swipe away from full screen view. Select and directly input any number from tape, undo or edit calculations. Easily create and use custom functions, store equations and useful numbers, use complex functions with multiple variables - fully programmable. Plot functions on a zoomable graph, export a high-resolution pdf copy. Dictate calculations and numbers for statistical analysis, with instant results. Completely free. • no adverts, no in-app purchases. • full set of scientific functions, unlimited nested brackets. • swipe to undo, step by step. • easily edit calculations and re-calculate. • optionally enter and edit calculations in standard maths format, rather than calculator order. • visible memory store. • tape output shows all calculations – swipe for full screen. • never type the same number twice – direct input from tape. • instantly convert between more than 120 different units. • zoomable text for easy reading and editing. • fully editable useful numbers page – store constants, conversion factors, commonly used numbers, tappable URLs or email addresses, or any text. • create, store and use functions for unit conversions or calculations, as simple as copy and paste. • dictate calculations, or lists of numbers for statistical analysis, get instant results. • create, edit and use complex functions with up to ten inputs or outputs – solve quadratic and cubic equations, calculate mortgage payments, compound interest, body mass index, triangles, the day of the week for any date, sunrise and sunset times and direction for any date and place, statistics (including normal, Student's T, Chi Square and F cumulative probability functions) and more – create or keep exactly what is useful, edit or delete what isn’t. 50 functions included. • fully zoomable graphing capability, plot one or two functions on a graph. Export PNG or high-resolution large pdf copies. • ideal for complex or repetitive tasks – custom functions reduce errors. • full help included.

About

Scientific Calculator *

This app offers a comprehensive suite of calculation tools, including basic and advanced math functions, unit conversions, and financial calculators. It also features a history log for easy access to past calculations and allows for customization of themes.

Highlights
  • Basic and complex calculations
  • Unit and currency converter
  • Financial calculators (loan, discount)
  • Calculation history log
  • Customizable themes
  • Fraction and trigonometric functions
Features
Read full description

The Calculator app is an extremely useful math problem solving app. With full features like a pocket calculator, not only helps you calculate from basic to complex quickly and accurately but also there are many other practical features: unit converter, currency exchange rate. Super Calculator +, fast and accurate calculation app Free calculator app is a tool that not only accurately calculates basic problems, but also quickly handles complex math with calculator keys such as fractions, square root operations, etc. Calculator + easily save a history of all calculations performed and you can copy results, duplicate equations or share problems with friends with just a few simple taps. Features of free Calculator: - Basic calculations from addition, subtraction, multiplication, and division with negative numbers, decimals and percentages - Free calculator: Choice of portrait or landscape keyboard - Calculator with fraction, fraction calculator, mixed numbers. Easy to use and accurate fraction calculator. - Free Calculator + allows edit calculations during input. - Calculator + save history of performed math operations. - Select units of calculation in trigonometric functions: degrees and radians - Faster calculation with mnemonic function keys: MC, M+, M-, MR - Instantly display temporary results without pressing the “=” - Option to display results with number of decimal places - Calculator + allows copying, sharing equations and results of operations. - Freedom to design and create your own unique theme Unit Converter Currency, length, weight, width, size, time, speed, pressure, temperature, fuel efficiency, tax... - Currency Converter: Supports 135 currencies in the world, including dollar, euro, yuan, yen, SGD ... - Percentage Calculator - Discount Calculator: Get a discount price by entering the original price and the discount rate. - Loan Calculator: Calculate the total interest, total payments by entering the loan principal and interest rate. - Date Converter, Date difference: Calculates the specific date or anniversary to be remembered! - Health Calculator: Measure the body mass index (BMI), the basal metabolic rate (BMR). - Automobile Fuel Cost: Calculate the fuel costs required for driving a car or traveling. - GPA Calculator: Calculate your GPA! - Tip Converter - Sales Tax Calculator - Unit Price Calculator - World Time Converter: Transforms the time of 400+ or more cities around the world. - Ovulation Calculator: Calculate the time of ovulation, fertility using the menstrual cycle! - Hexadecimal Converter: Converts between decimal and hexadecimal with ease and convenience. - Savings Calculator: If you enter deposit amount, interest rate, time period, the interest after tax, final savings balance will be calculated. Calculator + is optimally designed, so it takes up very little memory, saves device battery life when using the app, but has extremely powerful functions that will be an effective solution if you are not convenient to carry casio handheld computers. We are sure you will be satisfied with those wonderful utilities, free Calculator, unit converter, currency converter and a unique theme store to your liking will bring to you most enjoyable experience. Send feedback to our email if you have any problems or other feature suggestions for Calculator.

Screenshots

Function Calc4 screens
Scientific Calculator *4 screens

Verdict

The call

The clearest difference is in-app purchases: Function Calc at none against Scientific Calculator *'s 1. Function Calc also leads on ads (none vs shown) and rating (5.0 vs 4.6). Scientific Calculator *'s advantage is update cadence (every 2 weeks vs monthly) and ratings volume (12 vs 3). On price and review sentiment 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. Scientific Calculator * sells 1 one-off in-app purchase. Function Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Function Calc holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 3 and 12 respectively. Written reviews point the same way: 80% of Function Calc's written reviews are positive against 75% of Scientific Calculator *'s.

UpkeepUpdate frequency

Function Calc ships an update monthly, Scientific Calculator * every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 2 level
Function Calc versus Scientific Calculator *: the parameters behind the verdict, then further details
ParameterFunction CalcScientific Calculator *
PriceFreeFree
Rating5.0 (3 ratings) — better4.6 (12 ratings)
Positive reviews80.0% of reviews — better75.0% of reviews
Number of ratings312 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.612.0 — better
Further details — not scored
Size5 MB86 MB
Age rating4+4+
DeveloperHugh PelhamTOWER OF HANOI SOFTWARE COMPANY LIMITED

Customer experience

Function Calc

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Scientific Calculator *

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%
Written reviews12 reviews
Positive75.0%
Neutral8.3%
Negative16.7%

In-app purchases

None

Function Calc

No in-app purchases

1 purchases

Scientific Calculator *

One-time1
  • Remove Ad$4.99

Questions

Is Function Calc free?
Function Calc is free to download, with no in-app purchases.
Is Scientific Calculator * free?
Scientific Calculator * is free to download, with in-app purchases available.
Which has better reviews, Function Calc or Scientific Calculator *?
Function Calc is rated higher. Function Calc averages 5.0 out of 5 from 3 ratings, while Scientific Calculator * averages 4.6 from 12 ratings.
Do Function Calc or Scientific Calculator * have ads?
Scientific Calculator * shows ads; Function Calc does not.
Which is updated more often, Function Calc or Scientific Calculator *?
Function Calc ships an update monthly, and Scientific Calculator * every 2 weeks. Most recently, Function Calc was updated on November 2, 2026 and Scientific Calculator * on November 3, 2026.

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