CalculusOne

Calculus you can actually see

$3.99 · Designed for iPad. Not verified for macOS.

The full Calculus 1 course — 130 interactive lessons, 1,000+ practice problems, and real exams. Drag, graph, and explore to see the math move, not just read about it. Calculus 1, taught the way it should be — real explanations, visuals you can interact with, and enough practice to actually master it. CalculusOne is the full Calculus 1 course in your pocket: 130 lessons across four parts, structured like a real university course -The essential foundations before Calculus 1 (12 lessons) -Limits and derivatives (61 lessons) -Differentiation rules (35 lessons) -Derivatives and their applications (22 lessons) Every lesson pairs a clear explanation with an interactive activity built right into the page. Pull a secant line toward a tangent and watch a limit take shape. Drag a point around a circle to feel implicit differentiation. Watch a curve recolor itself as its derivative changes sign. This isn't a textbook with pictures — it's calculus you can actually see move. WHAT'S INSIDE -130 lessons, fully interactive, with clean, properly formatted math notation throughout -Dozens of hands-on graphs and simulations woven into the lessons -1,000+ practice problems, each with hints and a full worked solution -Four part exams plus a comprehensive final — real, graded, university-style testing -Flashcards to drill key definitions and results -Progress tracking: streaks, completed lessons, and bookmarks for quick review -Full light and dark mode Built for focus, not distraction CalculusOne works completely offline. No account, no sign-in, no ads, nothing tracked or sent anywhere — just you and the material. Study on a plane, underground, or wherever the Wi-Fi isn't.

Ratings & Reviews

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

Updated App Store screenshots to better showcase CalculusOne’s learning, practice, and exam features.

Version 1.0.1

The developer, KEVIN CAISSIE, 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
    KEVIN CAISSIE
    Size
    3.5 MB
    Category
    Education
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Kevin Caissie
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.