MathLib: Formula Calculator

Save and reuse your math

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Do the math once. Use it again. Start from scratch or explore 104 templates, then change the inputs instead of rebuilding the calculation. Do the math once. Use it again. MathLib turns the calculations you repeat into reusable tools. Work through a quick calculation, keep the steps that matter, and change the inputs next time instead of typing everything again. START CALCULATING RIGHT AWAY Write expressions, see their results, and use named values in later calculations. Keep related steps together while you work through everyday math, study problems, or technical calculations. KEEP THE STEPS, NOT JUST THE ANSWER Save a useful calculation as a personal formula. Choose its inputs and outputs, then run it whenever you need it. Adjust a number or slider to see the results update without rewriting the expressions. SKIP THE BLANK PAGE Explore 104 ready-made formulas across 13 categories, including finance, geometry, physics, engineering, statistics, and unit conversions. Preview a formula for free, or save your own copy to customize. GO BEYOND A SINGLE NUMBER Use scientific functions, units, fractions, complex numbers, vectors, and matrices. Add plots to explore how a result changes across a range. Built-in function suggestions and a searchable reference help you find the syntax you need. YOUR MATH, ON YOUR IPHONE Calculate, browse the catalog, and run saved formulas offline. Your personal formulas stay on your iPhone: no account, cloud sync, ads, or tracking. Scratch calculations are temporary; save a formula to keep useful work. FREE TO CALCULATE. PRO TO SAVE MORE. The full calculator, all 104 templates, plotting, units, and reference are free. Save up to 2 personal formulas with Free. MathLib Pro removes that saving limit with a one-time purchase. No subscription. Purchases and restoration require access to the App Store.

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The developer, Andreu Pifarre, 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

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    Information

    Seller
    Andreu Pifarre
    Size
    16.1 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    13+
    • 13+
    • Learn More
    • Infrequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    In-App Purchases
    Yes
    Copyright
    © 2026 Loop Interactive
  • Developer Website
  • Privacy Policy

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