Sumi: Tape Calculator

Multi-line history & notes

Free

Never lose track of your math. Sumi keeps every line on a running tape you can edit, annotate, and total instantly — on iPhone, iPad, and your Mac menu bar. Sumi is a calculator that remembers. Instead of a single number that disappears the moment you hit equals, Sumi shows your whole calculation as a running tape — every line visible, editable, and adding up to a live total. It's the fast, frictionless way to work through anything from a quick estimate to a full list of expenses. A CALCULATOR WITH A MEMORY • Every entry stays on screen as a scrollable history tape • A live Total updates as you go — no re-typing • Operators are color-highlighted so long expressions stay readable EDIT ANYTHING, ANYTIME • Tap any line to move the cursor and fix a number • Recalculate instantly without starting over • Use parentheses and full operator support for real expressions ADD NOTES THAT STICK • Label any line with a note — "rent", "tax", "client A" • Notes appear as clean tags right next to the math • Finally know what each number was for SHARE YOUR WORK • Copy the whole tape as text • Share a clean screenshot of your history • Perfect for sending a quick breakdown to someone LIVES WHERE YOU WORK • A tidy app on iPhone and iPad • A menu bar calculator on Mac — one click away, always there • The same calculator, wherever you are MAKE IT YOURS • Choose from beautiful themes • A calm, focused design that gets out of your way PRIVATE BY DESIGN • Everything happens on your device • No accounts, no tracking, no clutter Great for budgets, receipts, invoices, splitting bills, expense tracking, and any time one number just isn't enough. Download Sumi and never lose your train of thought mid-calculation again.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

• Redesigned history header with a live line count • Bolder Total pill that's easy to read at a glance • Notes now show as clean tag chips on each line • Added a "NEW LINE" hint and tightened spacing throughout • Smoother history expand/collapse and better-aligned note icons • Bug fixes and polish Thanks for using Sumi — we'd love your feedback!

Version 1.5

The developer, YuXin Healing Hub Pte. Ltd., 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
    • YuXin Healing Hub Pte. Ltd.
    Size
    • 2.8 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.6 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 4 more
    • English, French, Simplified Chinese, Spanish, Traditional Chinese
    Age Rating
    4+
    Copyright
    • © YuXin Healing Hub Pte. Ltd.
  • Developer Website
  • Privacy Policy

    • More by YuXin Healing Hub Pte. Ltd.

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