Basic Calculator vs Cuspart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Basic Calculator
A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.
- Large, easy-to-press buttons
- Multiple beautiful skins
- Basic arithmetic operations
- Standard memory functions
- Supports large numbers (up to 60 digits)
- Multitasking support (Split View, Slide Over)
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Calculator Free is a great free calculator with beautiful HD graphics and multiple skins! Features: - Supports multitasking on iPad devices - Split View and Slide Over features - Multiple beautiful skins - General calculations: adding, subtracting, multiplying, dividing, square-rooting - Standard memory functions: Memory Addition, Memory Subtraction, Memory Recall, Memory Clear - Thousands separators option - Can handle very large numbers - up to 60 digits! (never displays in scientific notation) - Large, easy to press buttons - Copy / Paste buttons - Key click sound effect The user interface is translated in the following languages: English, Spanish, French, Italian, German, Portuguese, Russian, Japanese, Chinese (simplified and traditional), Dutch, Norwegian, Danish, Korean, Turkish, Indonesian, Finnish, Swedish, Greek, Polish, Czech, Hungarian, Slovak, Bulgarian.
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.
Screenshots
Verdict
The clearest difference is ratings volume: Basic Calculator at 3.2K against Cuspart's 1. Basic Calculator also leads on update cadence (every 2 months vs every 4 months). Cuspart's advantage is rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model 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. Basic Calculator sells 1 one-off in-app purchase and Cuspart sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Cuspart holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Basic Calculator has 3.2K ratings behind it against 1, so its average is the more settled of the two.
Basic Calculator ships an update every 2 months, Cuspart every 4 months. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.
| Parameter | Basic Calculator | Cuspart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (3.2K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 74.3% of reviews | — |
| Number of ratings | 3.2K — better | 1 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 93 MB | 13 MB |
| Age rating | +4 | 12+ |
| Developer | MobArts | Mustafa Tolga DALBUDAK |
Customer experience
Basic Calculator
Cuspart
Bugs and requests
Basic Calculator
Reported bugs
2 issues- Crashes or freezes after iOS updates
- Percent key not functioning correctly
Requested features
3 requests- Reinstate iPhone version
- Add scientific calculator functions
- Improve memory retention
Cuspart
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Basic Calculator
- Banner Ad Removal$0.99
Cuspart
- 1 Month Subscription$0.991 Month
- 3 Month Subscription$2.993 Months
- 12 Month Subscription$9.991 Year
- Remove Ads$2.49







