Codex Calc vs Calculator Pro

Codex Calc is the calculator for the rest of us: easy and intuitive, without sacrificing power and capabilities. Calculator • Unit Converter • Tip Calculator • RPN Mode • Full Scientific • History Tape All the power you need, wrapped in a beautifully designed interface that's simple without being simplistic. ADAPTS TO YOU Do you like big buttons, or small? Like minimalist interfaces, or are you a fan of bright and flashy? Prefer small fonts to see more detail, or big text and easy to read buttons? Codex Calc adapts itself to the way *you* like to work. FEATURES Everything you'd expect, plus: • History tape records all entries and calculations • Full suite of standard and scientific calculator functions • Unit conversion mode for forward and reverse conversions • Full tip calculator mode - taxes, tip, per-person amounts • RPN mode fully integrated • Rotation lock and sound on/off toggles • Seven different professionally designed visual themes • Multi-number memory and full set of memory-store operators • Full control over history tape font size • Single and multiple-line history tape formats • Large and small button sizes • Settings for customization (number formatting, behavior of clear key, display of calculation details, much more) Calculations: • Trig functions in degrees and radians • Log and power/exponentials • Scientific notation / exponent mode • Rounding and truncating • Random number generation • Parenthesis and sub-expressions ...and more! INTUITIVE TOUCH INTERFACE Take full advantage of your device's capabilities: • Overlays - rather than making buttons smaller to fit more, Codex Calc uses intuitive overlays on the existing buttons. • Popup Menus - hidden until you need them, pop-up context menus give you more power when the default action isn't quite what you need. • Zoomable History Tape - Tap the history tape to expand for more detail, change the font size, copy contents to clipboard, or forward as an email. View as single-lines to save space, or use multi-line view for more detail. • Multiple Flexible Layouts - Portrait and landscape, large and small buttons, and seven different graphical themes. • Easy-Touch Everything - Codex Calc's entire design approach revolves around "touch to activate." Tap the tape to see it bigger, swipe to scroll, long-press a button for more options, tap the display to copy or paste, etc.

Calculator Pro is a scientific calculator, currency converter, unit converter, and everyday math toolkit. Split a bill, check homework, convert USD to EUR or JPY, switch meters to feet, or run a percentage without jumping apps. Multi-language UI, region-aware currencies, optional key haptics, Dark Mode that can follow the system. Calculation runs on your device. Use it as a discount calculator, a scientific calculator with trig functions, a travel currency converter, or a metric-to-imperial unit converter. STANDARD CALCULATOR & SCIENTIFIC CALCULATOR Everyday arithmetic: addition, subtraction, multiplication, division, chained operations, percentage calculator, discount calculator, increase/decrease, share-of-total. Good for checkout, splitting costs, homework. Scientific mode: sine, cosine, tangent, inverse trig, common log, natural log, exponents, powers, square root, square, factorial, degree/radian switching. Readable expressions and results. Reopen calculation history to continue. CURRENCY CONVERTER & EXCHANGE RATES Instant multi-currency conversion. Region-aware defaults can prioritize USD, EUR, GBP, JPY, KRW, CNY, HKD, TWD. Edit a list for travel money, overseas shopping, tuition estimates, or quote checks. Rates may be delayed and are for reference only. Confirm with your bank before sending money. UNIT CONVERTER Type once and compare metric, imperial, and everyday units: • Length: meter, centimeter, millimeter, kilometer, inch, foot, yard, mile • Mass: kilogram, gram, pound, ounce • Temperature: Celsius, Fahrenheit, Kelvin • Time, area (square meter, hectare, square foot, acre), volume (liter, milliliter, cubic meter, gallon) • Speed: km/h, mph, m/s, fuel consumption • Engineering: power, energy, heat, pressure, force, torque, density • Electricity: voltage, current, resistance, frequency • Digital storage: KB, MB, GB, TB (1024 or 1000), data rate • Optics, radiation, and other everyday categories Useful for shopping, home projects, running pace, lab work, and estimates. MORE EVERYDAY TOOLS In most regions: percentage calculator; binary / octal / decimal / hexadecimal converter; BMI calculator; random number generator. Date calculators, mortgage or savings estimators, and other local helpers may appear by region and language—not shown everywhere. HISTORY & HOME SCREEN WIDGET History saves expressions and results so you can review or continue. A Home Screen widget shows recent records. Plain-text export is available; CSV and PDF are in the optional purchase section below. WHO IT’S FOR Students (homework, scientific functions, unit conversion, hex converter), everyday work (percentages, exchange rates), travelers (currency converter, metric/imperial), and anyone who wants a calculator with history and a widget. Currency rates, planning estimates, and BMI are informational only—not investment, medical, tax, or legal advice. Confirm with official sources before you act. Data may be delayed or vary by region. LIFETIME PRO (OPTIONAL IN-APP PURCHASE) Core calculation, common unit conversion, and basic tools work without a purchase. Lifetime Pro is a one-time In-App Purchase—not a subscription, no auto-renew, no monthly billing. It typically unlocks CSV or PDF history export (plain-text export stays available), extra themes, extra professional unit categories, and more currencies beyond the free allowance. Payment, receipts, and refunds are handled by Apple through the App Store. Restore Purchase works on the same Apple ID. Family Sharing is enabled for eligible family members under Apple’s rules. Terms of Use: https://iorangepie.com/common/ios/calculatepro/terms-of-service-en.html Privacy Policy: https://iorangepie.com/common/ios/calculatepro/privacy-policy-en.html Apple Licensed Application End User License Agreement (includes In-App Purchases): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/