Cuspart vs Keycal
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.
Keycal
This keyboard extension provides a full calculator and unit converter directly within your typing interface. Seamlessly perform calculations and conversions without leaving your current application, enhancing productivity for everyday tasks.
- Integrated keyboard calculator
- Instant unit conversions
- Works across all apps
- Customizable themes
- Haptic feedback and sound
- Privacy-focused design
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Keycal - Calculator & Unit Converter Keyboard Keycal is the ultimate keyboard upgrade — a powerful calculator and smart unit converter, built right into your keyboard. Calculate and convert without switching apps. Whether you’re texting, taking notes, or browsing, KeyCal is always one tap away. Features: • Full calculator built into your keyboard • Instant unit conversions (length, weight, temperature, and more) • Works in any app — Messages, Notes, Safari, and more • Customizable themes to match your style • Haptic feedback and sound for a satisfying feel • Fast, simple, and privacy-first Stop switching apps. Just tap, calculate, convert — and keep typing. “By using this app, you agree to the Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/”
Screenshots
Verdict
The clearest difference is ads: Keycal at none against Cuspart's shown. Keycal also leads on update cadence (daily vs every 4 months). On price, in-app purchases, monetization model 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 and Keycal sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Cuspart ships an update every 4 months, Keycal daily. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Cuspart | Keycal |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 8 MB |
| Age rating | 12+ | 4+ |
| Developer | Mustafa Tolga DALBUDAK | Parth Antala |
Customer experience
Cuspart
Keycal
In-app purchases
Cuspart
- myCal Pro$2.99
Keycal
- Keycal+$4.99
Questions
Is Cuspart free?
Is Keycal free?
Do Cuspart or Keycal have ads?
Which is updated more often, Cuspart or Keycal?
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