Calculator + vs Xmart Calculator Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator +
This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.
- Free basic and scientific calculator
- Intuitive interface with equation and result display
- Fraction and percent support
- Advanced editing capabilities
- Polynomial and linear equation solver
- Graphing calculator
- Unit conversion and geometric calculators
Read full descriptionHide full description
Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Xmart Calculator Pro
This app functions as an intelligent, programmable calculator that allows users to define custom algebraic functions. It provides instant results as expressions are updated and offers step-by-step calculation traceability. Users can save, recall, and share their calculation history.
- Define custom algebraic functions
- Instant calculation results
- Step-by-step calculation traceability
- Save and recall calculation history
- Configurable appearance (colors, fonts)
- Includes a mortgage calculator
Read full descriptionHide full description
Let's look at some simple questions: Question 1: James can make $200 per day, what would be his annual income ( He works 5 days a week, 48 weeks per year) ? This is easy, just enter an expression as this in Xmart Calculator: 200 x 5 x 48 Question 2: How many times of tapping a button to calculate his annual income? 8 times on a normal calculator, 7 times on Xmart Calculator (you don't need to tap the '=' button). Question 3: What if his day rate is $320, $400, $500...? Well, very similar: 320 x 5 x 48; 400 x 5 x 48; 500 x 5 x 48... What's the problem? With a normal calculator, we have to enter the same buttons 'x 5 x 48' very time when the only value changes is just the day rate. Is there any way to just enter the day rate and the result will update automatically? With Xmart Calculator, YES! You can define a Algebra function like this: "IncomeByDay(X) = X x 5 x 48" Then you can just select the function and enter the value for 'X' and the result will update straight away! To get James annual income, you just need to tap buttons 4 times. -- End of questions -- Xmart Calculator is appreciated as an intelligent, programmable and expandable calculator based on text expression. In addition to most of the common and scientific functions, users can also define personal functions. All calculations are step-by-step traceable. **Quick start: * There is no '=' button in this calculator app, it will calculate and show result as soon as the expression is updated. * Swipe up/down to hide/show the history records. * Swipe left and right to hide/show the scientific/math functions. **Main feature: * Custom functions: user can define any algebra functions with up to 9 parameters. * Use a custom function in the main expression or play with it separately. * Calculate and show result instantly when the input is updated. * Most common scientific & math functions are included. * Save calculation to history * Review & Recall history results or expressions * Name/label a history item meaningfully * Record and show step by step details of the calculation * Share history with friends * Fast mortgage calculator is included **Additional features * Support Apple Watch & iMessage * Auto save: turn ON/OFF or set a custom timer for saving results automatically * Colours, layouts and fonts are configurable, you can design your own calculator. * Turn ON/OFF button sounds. * Select button sound from 6 different options
Screenshots
Verdict
The clearest difference is price: Calculator + at Free against Xmart Calculator Pro's $5.99. Calculator + also leads on update cadence (every 5 days vs every 6 weeks) and ratings volume (10K vs 153). Xmart Calculator Pro's advantage is in-app purchases (none vs 12) and ads (none vs shown). On rating 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
Calculator + is free to download; Xmart Calculator Pro costs $5.99 up front. Calculator + sells 12 in-app purchases, starting at $4.99 per month. Xmart Calculator Pro asks for nothing beyond the download.
Calculator + holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator + has 10K ratings behind it against 153, so its average is the more settled of the two. Written reviews split almost evenly too, at 85% and 85% positive.
Calculator + ships an update every 5 days, Xmart Calculator Pro every 6 weeks. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.
| Parameter | Calculator + | Xmart Calculator Pro |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 4.6 (10K ratings) — better | 4.4 (153 ratings) |
| Positive reviews | 84.9% of reviews | 85.5% of reviews — better |
| Number of ratings | 10K — better | 153 |
| Update frequency | Every 5 days — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | xNeat.com | XHLIU |
Customer experience
Calculator +
Xmart Calculator Pro
User reviews
Calculator +
From 10K App Store ratingsWhat we love
- 👍 Great features and easy to use
- 👍 Efficient and quick
- 👍 Versatile, functional calculator
- 👍 Fantastic, easy to use app
- 👍 Awesome calculator app
Room to improve
- 🐛 New updated layout is awful
- 🐛 App is now terrible
- 🔒 Paying customer screwed over by update
- 🔒 Now timed trial, no free w/ads version
- 🔒 Not honest
Xmart Calculator Pro
From 153 App Store ratingsWhat we love
- 💾 History saving and recall functionality
- 👍 User-friendly and intuitive interface
- 🎨 Customizable colors and themes
- 💡 Custom function creation and storage
- 🚀 Fast and efficient calculations
Room to improve
- 🐛 Glitches with equals button reuse
- 🐛 Preferences window opens unexpectedly
- 📱 iPad landscape-only orientation limitation
- 🐛 Percentage calculations don't work on-the-fly
- 🐛 Decimal multiplication errors (.15*.80)
Bugs and requests
Calculator +
Reported bugs
5 issues- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes
Requested features
5 requests- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines
Xmart Calculator Pro
Reported bugs
8 issues- Illegal character error when reusing equals button result
- Preferences dialog opens on equals button tap
- Save button disappeared in history feature
- Percentage key calculations malfunction
- Decimal multiplication errors
Show 3 moreShow fewer
- Cursor jumping when editing functions
- Pop-up ads freezing application
- Inconsistent percentage operation behavior
Requested features
8 requests- Fraction form results display
- RPN (Reverse Polish Notation) support
- Better iPad screen optimization
- Decimal input accepting '.2' as '0.2'
- Smart decimal place display
Show 3 moreShow fewer
- Portrait mode option for iPad
- Easier custom function editing interface
- Light color theme with dark font contrast
In-app purchases
Calculator +
- Scientific Calculator3 Days trial$4.991 Month
- Calculator7 Days trial$39.991 Year
- Linear Calculator$2.99
- Factoring Calculator$2.99
- Handwriting Calculator$2.99
Show 7 moreShow fewer
- Currency Converter$2.99
- Themes Pack$2.99
- Graphing Calculator$3.99
- Fraction Calculator$3.99
- Scientific Calculator$4.99
- Calculator Plus$4.99
- Calculator$16.99
Xmart Calculator Pro
No in-app purchases
Questions
Is Calculator + free?
Is Xmart Calculator Pro free?
Which has better reviews, Calculator + or Xmart Calculator Pro?
Do Calculator + or Xmart Calculator Pro have ads?
Which is updated more often, Calculator + or Xmart Calculator Pro?
Other comparisons















