Calculator vs eCalculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This is a straightforward calculator application designed for ease of use and clear readability. Users can personalize the app's appearance by choosing their preferred background and display themes.
- Easy to use interface
- Clear display
- Customizable background
- Customizable display themes
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Calculator-- is a simple calculator that is easy to use and read. Select the desired background and display. If you like this app, please consider giving it a rating. Your support will help keep the updates coming! Thank you for your support!
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.
- 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
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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
Verdict
The clearest difference is in-app purchases: Calculator at none against eCalculator's 1. Calculator also leads on ratings volume (916 vs 156). eCalculator's advantage is update cadence (every 3 months vs every 13 months) and iOS requirement (11.0 vs 15.0). On price, rating, review sentiment 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
Both are free to download. eCalculator sells 1 one-off in-app purchase. Calculator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Calculator against 4.6 for eCalculator. That said, the two scores are not equally well evidenced: Calculator has 916 ratings behind it against 156, so its average is the more settled of the two. Written reviews split almost evenly too, at 80% and 80% positive.
Calculator ships an update every 13 months, eCalculator every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Calculator | eCalculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (916 ratings) — better | 4.6 (156 ratings) |
| Positive reviews | 79.8% of reviews | 80.0% of reviews — better |
| Number of ratings | 916 — better | 156 |
| Update frequency | Every 13 months | Every 3 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | Horizon Business, Inc. | Ratha Sou |
Customer experience
Calculator
eCalculator
Bugs and requests
Calculator
Reported bugs
2 issues- Sound toggle switch doesn't work to turn off sounds
- App crashes or freezes on some devices
Requested features
3 requests- Add percentage and other advanced math functions
- Allow landscape mode
- Add option to turn off button sounds
eCalculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator
No in-app purchases
eCalculator
- Full Version$4.99
Questions
Is Calculator free?
Is eCalculator free?
Which has better reviews, Calculator or eCalculator?
Do Calculator or eCalculator have ads?
Which is updated more often, Calculator or eCalculator?
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