Comparison

Calculator%. vs eCalculator

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 straightforward calculator with a large display and oversized buttons for easy operation. It's designed for everyday tasks, enabling users to perform fundamental arithmetic like addition, subtraction, multiplication, and division with clarity and convenience.

Highlights
  • Big display and buttons
  • Easy to use
  • Basic calculations
  • Clear display format
  • Intuitive design
Features
Read full description

Simple calculator with big display and button. Easy to use for daily work. Perform basic calculations such as addition, subtraction, multiplication, and division. Characteristics : - A clear display format and easy to read. - An intuitive and attractive design that facilitates calculations every day.

About

eCalculator

This app enhances the standard calculator with advanced features like history, equation viewing, and a scientific mode. It offers specialized calculators for fractions, programming, and tips, along with extensive unit and currency conversions. Personalize your experience with themes and keyboard input.

Highlights
  • Basic and scientific calculations
  • Fraction calculator
  • Programmer calculator (binary, octal, decimal, hex)
  • Unit and currency converter
  • Tip calculator and bill splitter
  • Calculation history and equation view
  • Widget support and keyboard input
Features
Read full description

Designed to take the original calculator to the next level with simplicity and functionality. This app features all basic and scientifc calculation from the original calculator with more advanced functions like history, calculation equation, scientific mode in portrait, calculation on the widget, themes, and keyboard input. Unlock the power of binary, octal, decimal, and hexadecimal math with Programmer Calculator. Solve fraction math problem quickly and easily with fraction calculator. Includes international currency conversion and variety of units conversion categories. Tip calculator to calculate tip percentage for food and drink on the fly. Save time when use bill splitter, and tip exactly what you mean to, no more, no less. BASIC/SCIENTIFIC CALCULATOR • All functions like the original calculator app • Basic calculation in portrait • Scientific calculation in both portrait and landscape • Access result and do calculation on widget • Switch between Degrees and Radians calculations • Make more complex calculations with Memory buttons • Simply swipe on the digits to delete a single wrong digit UNIT CONVERTER • Currency converter with daily updated exchange rates in the universal currency • Freely convert units from variety of categories • All catalogs in converter include: Currency, Area, Data, Length, Weight, Velocity, Temperature, Time, Volume, Acceleration, Angle, Current, Energy, Force, Illumination, Inductance, Magnitude, Power, Pressure, Radiation and Torque FRACTION CALCULATOR • Built-in fraction calculator to solve fraction math • Display result in proper fraction, improper fraction or decimal number PROGRAMMER CALCULATOR • Multi-base calculations with seamlessly switch between binary, octal, decimal and hexadecimal • Perform arithmetic and logical operations • Directly view and manipulate the individual bits of the binary number with built-in Bit Editor TIP CALCULATOR • Calculate tip of bill on the fly • Split the bill to share with others • Simply swipe to round any number of total, tip, or per person • Built-in share function to easily share the number SIMPLICITY • Check previous calculation with history • View whole equation during calculation • Copy and paste numbers from or into display • Support external hardware keyboard input • Quickly launch different modes with home screen quick action INTERFACE • Get new feel of different looks with multiple themes • Buttons feedback sound and haptic to ensure you touch the buttons correctly NOTES: • To add widget in iOS 14 or later, scroll to the bottom of the widget list, tap Edit, tap Customize, add Calculator widget, and tap Done.

Screenshots

Calculator%.4 screens
eCalculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator%. at none against eCalculator's 1. Calculator%. also leads on ratings volume (4.2K vs 151). eCalculator's advantage is review sentiment (80% vs 61%). On price, rating, 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. eCalculator sells 1 one-off in-app purchase. Calculator%. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

eCalculator holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator%. has 4.2K ratings behind it against 151, so its average is the more settled of the two. Written reviews point the same way: 61% of Calculator%.'s written reviews are positive against 80% of eCalculator's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator%. versus eCalculator: the parameters behind the verdict, then further details
ParameterCalculator%.eCalculator
PriceFreeFree
Rating4.4 (4.2K ratings)4.6 (151 ratings) — better
Positive reviews61.2% of reviews80.0% of reviews — better
Number of ratings4.2K — better151
Update frequencyEvery 3 monthsEvery 3 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.111.0 — better
Further details — not scored
Size11 MB77 MB
Age rating4+4+
DeveloperUniCom TechnologyRatha Sou

Customer experience

Calculator%.

All ratings4,164 ratings
Positive84.4%
Neutral6.2%
Negative9.5%
Written reviews49 reviews
Positive61.2%
Neutral2.0%
Negative36.7%

eCalculator

All ratings151 ratings
Positive91.4%
Neutral2.6%
Negative6.0%
Written reviews10 reviews
Positive80.0%
Neutral10.0%
Negative10.0%

Bugs and requests

Calculator%.

Reported bugs

3 issues
  • App crashes when adding certain numbers
  • Buttons not responsive at times
  • Incorrect calculations for some operations

Requested features

3 requests
  • History feature
  • Customizable interface
  • Improved accuracy for decimal calculations

eCalculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Calculator%.

No in-app purchases

1 purchases

eCalculator

One-time1
  • Full Version$4.99

Questions

Is Calculator%. free?
Calculator%. is free to download, with no in-app purchases.
Is eCalculator free?
eCalculator is free to download, with in-app purchases available.
Which has better reviews, Calculator%. or eCalculator?
eCalculator is rated higher. Calculator%. averages 4.4 out of 5 from 4.2K ratings, while eCalculator averages 4.6 from 151 ratings.
Do Calculator%. or eCalculator have ads?
Both Calculator%. and eCalculator show ads.
Which is updated more often, Calculator%. or eCalculator?
Calculator%. ships an update every 3 months, and eCalculator every 3 months. Most recently, Calculator%. was updated on September 23, 2026 and eCalculator on September 21, 2026.

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