Kalk: Plain Text Calculator

Type like notes. Get totals.

Free

Write like you take notes and Kalk does the math. Budgets, trips, invoices, recipes: words and numbers together, answers as you type, synced on iPhone, iPad and Mac. Kalk is a calculator you write in like a notes app. Type words and numbers together, the way you'd jot something down: "Rent 1 200 + utilities 180", "Coffee 4.50 × 20 workdays", "100 EUR in USD". Every line with a calculation shows its answer on the right, as you type. No keypad, no equals button, no lost history: the whole calculation stays readable and editable. WRITE THE WAY YOU THINK • Words around numbers are simply ignored, so notes and math share a line • Headings with #, comments with // • Big numbers the easy way: 1 250 000, 45k, 2.5M, 1bn • Decimal point or comma, whichever you're used to MATH, PERCENT, UNITS • Brackets, powers, negative numbers • Percentages the way people say them: 100 + 15%, 20% of 80, Price − 10% • Convert length, weight, volume, speed, temperature, time and data: 6 ft in cm, 180 lb in kg, 38 °C in °F CURRENCIES AND CRYPTO • Live exchange rates for world currencies • Bitcoin, Ethereum, Solana, stablecoins and more • Mix currencies in one line: £80 + €50, (0.1 BTC + 2 ETH) in USD TOTALS THAT ADD THEMSELVES • Write Total, sum or avg under a list to add it up • Sections end at a blank line or heading, so one sheet can hold many lists • The bottom bar keeps a running grand total • Name values and reuse them: Rate: $85, Rate × 37.5 ON ALL YOUR DEVICES • iPhone, iPad and Mac • Sheets sync through your own iCloud • Edit offline on several devices; Kalk merges the changes when they reconnect AND MORE • Lock private sheets with Face ID, Touch ID or your passcode • Share a sheet as text, PDF or image • Pin, sort and duplicate sheets • Dark, light or follow the system • Built-in cheatsheets with examples of everything Kalk understands Great for budgets, trip planning, splitting bills, invoices, renovation estimates, recipes, shopping lists, and any time you'd otherwise reach for a calculator and a notepad at once. PRIVACY Kalk collects nothing. No accounts, no ads, no tracking. Your sheets stay on your devices and in your own iCloud.

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The developer, Dmytro Shcherbyna, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Dmytro Shcherbyna
    Size
    1.5 MB
    Category
    Productivity
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Dima Fern
  • Privacy Policy

    • More by Dmytro Shcherbyna

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