Cuspart vs Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cuspart
This app offers a professional-grade calculator with advanced math functions, a constants library, and intuitive history tracking. Customize your experience with various color themes and an accessible interface designed for ease of use.
- Basic and advanced arithmetic
- Roots, powers, and logarithms
- Constants library (π, e)
- Operation history
- Customizable color themes
- Accessible UI design
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Cuspart: myCal is a clear, focused calculator for everyday math, scientific calculations, and unit conversions. From a quick calculation to a complex expression, myCal keeps everything readable in one polished workspace. SWITCH MODES WITHOUT THE FRICTION Move between Standard, Scientific, and Convert modes whenever you need them. Start in Scientific mode with advanced tools ready to use, or return to your last workspace instantly. CALCULATE WITH CLARITY * Add, subtract, multiply, and divide with confidence. * Build expressions with parentheses and proper order of operations. * Use percentages, negative values, memory keys, and quick delete. * Keep the full expression visible while you type. * Read results clearly with smart number formatting. * Fix mistakes without restarting your calculation. SCIENTIFIC TOOLS, READY TO GO * Trigonometric functions with degrees and radians. * Square, cube, and arbitrary powers. * Square, cube, and nth roots. * Logarithms including log10, log2, and ln. * Exponentials including 10^x and e^x. * Reciprocals, factorials, absolute values, floor, ceiling, and sign functions. * Hyperbolic functions for advanced calculations. * Instant access to π and e. CONVERT UNITS IN ONE PLACE Convert everyday and technical units without leaving the calculator. * Length, area, weight, volume, temperature, and speed. * Data, energy, time, pressure, force, and power. * Frequency, fuel economy, voltage, resistance, and illuminance. * Concentration and other useful categories. * Currency conversion with clear rate status when rates are available. YOUR HISTORY, AT A GLANCE Keep every expression and result within reach. Review previous calculations, copy useful answers, delete individual entries, or clear your history whenever you want a fresh start. MAKE IT YOURS Choose a look and feel that fits your workflow. * Light, dark, or system appearance. * Calculator fonts designed for clear numbers. * Multiple color palettes. * Custom key colors with Pro. * Large touch targets and readable typography. OPTIONAL PRO FEATURES Upgrade to Pro for custom key colors, additional font styles, exclusive color presets, offline access, and an ad-free workspace — all with a one-time purchase. BUILT FOR FOCUS Cuspart: myCal combines the familiarity of a traditional calculator with the power of a scientific workspace. Whether you're studying, working, converting units, or handling everyday math, myCal keeps your calculations clear, fast, and organized.
Smart
This utility app offers a comprehensive suite of calculators for everyday financial, health, and date-related needs. It includes tools for loans, investments, taxes, health metrics, and unit conversions, along with a math solver.
- Basic & Scientific Calculations
- Loan & Investment Calculators
- Health & Date Calculators
- Unit & Currency Converters
- GST/Sales Tax/VAT Calculator
- Math Solver
- History & Number to Word Conversion
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Calculators Basic & Scientific calculator GST/Sales Tax/VAT calculator Loan calculator: EMI, Compare Loan, Loan Affordability, Loan Amortization Investment calculator: FD, RD, ROI, SIP, CAGR Percentage calculator, Markup & Margin, Profit & Loss Unit Price calculator : Find cheapest price Health Calculator: BMI, BMR, Body Fat % & Daily Calories burn, Ideal Weight Date Calculator: Age, Duration, ± Date, Days Counter, Time-sheet, Working Days Discount calculator Tip calculator Math solver Converters Unit converter Currency converter Key Features General & Scientific Calculator - Facilitates instant & accurate calculations from simple to complex - Store value for later using memory keys - Track your calculations with History. Write a short note for important calculations - Undo result, quick copy & share - Number to Word conversion - Extra functions on long-press Unit Converter - Simple, smart & elegant tool with more than 200 unit converters that are used in daily life - Supported conversion categories:- Length & Distance, Weight, Area, Volume, Temperature, Cooking, Number Base, Digital Storage, Number Conversion, Data Transfer, Time, Speed, Force, Power, Fuel, Energy, Angle, Density, Acceleration, Frequency, Torque. Currency converter - Foreign exchange rates of 170 countries currency - Available offline GST /Sales Tax/VAT Calculator -Include(+) or Exclude(-) Tax from given amount with single tap. - 5 Pre-provided tax rates can be customized as per your country rates. Interest Calculator -Calculate interest & maturity amount on your saving through Simple Interest, Compound Interest, RD, SIP & Doubling Time. -Check your investment opportunities through ROI Percentage Calculator -Simple percentage, % increase/decrease, % change, what %, fraction to % -Calculate Markup percentage, Margin percentage & total profit based on cost & selling price Health Calculator - BMI, BMR, Body Fat %, Daily Water Intake based on your age, gender, height & weight. Calculate daily calorie requirement as per selected activity level. - Track your weight to improve your BMI and overall health. Date Calculator -Age calculator & Birthday tracking -Duration between two dates/times -Add/Subtract duration to date & calculate final date & time. -Days/Hours Countdown. Never miss your important events Equation Solver - Linear equations with one,two & three variables - Quadratic equation Loan Calculator -Calculate your EMI, total interest & final amount with amortization chart in a easiest way. -Compare two loans to know which one is better for you. -Calculate how much loan you can afford based on your max monthly EMI. Discount Calculator -Calculate or confirm discounts quickly on original price. -Find out how much you save for an item. Tip Calculator -Calculate the tip percentage or tip amount & split the bill among number of persons on table. -Save time when you use the bill splitter, and tip exactly what you mean to, no more, no less. Unit Price Calculator -Compare prices of two or more products having different quantities of same unit & buy cheapest price item.
Screenshots
Verdict
The clearest difference is rating: Cuspart at 5.0 against Smart's 3.0. Smart's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 4 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
Both are free to download. Cuspart sells 1 one-off in-app purchase. Smart asks for nothing beyond the download.
Cuspart holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Cuspart ships an update every 4 months, Smart every 5 weeks. Both last shipped on November 3, 2026.
| Parameter | Cuspart | Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 14.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 49 MB |
| Age rating | 12+ | 17+ |
| Developer | Mustafa Tolga DALBUDAK | Shreyaskumar Patel |
Customer experience
Cuspart
Smart
In-app purchases
Cuspart
- myCal Pro$2.99
Smart
No in-app purchases








