Equation Builder

Puzzle

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

Build equations, solve puzzles! Train your brain with 210+ stages across 14 chapters. Equation Builder is a brain-training math puzzle game where you build equations to reach target numbers. Connect numbers and operators on a grid to form valid equations and clear each stage. FEATURES: - 14 Chapters with 210+ Stages of progressive difficulty - Start with simple addition and advance through subtraction, multiplication, and division - Grid sizes grow from 3x3 to 5x5 as you progress - Earn stars to unlock new chapters and themed environments - 5 Beautiful Themes: Ocean, Midnight, Forest, Sunset, and Neon - Hints available when you get stuck - Clean, intuitive swipe-based controls CHAPTERS: First Steps - Learn the basics with addition Subtraction - Add subtraction to the mix Bigger Board - Expand to a 4x4 grid with 2 numbers Three Numbers - Tackle 3-number equations on a 4x4 grid Multiply - Introduce multiplication Big Numbers - Take on larger values Wide Open - Master the 5x5 grid with 3 numbers Products - Multiply on the big board Divide & Conquer - Division meets the 5x5 grid Tight Fit - Squeeze 4 numbers onto a 4x4 grid Full Equation - Build complete 4-number equations Open Field - 4-number equations on the 5x5 grid Expert - Complete your operator toolkit Challenge - Put your skills to the test Whether you are a math enthusiast or just looking for a fun way to sharpen your mind, Equation Builder offers the perfect balance of challenge and satisfaction. How far can you go?

Ratings & Reviews

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

The developer, HIROMICHI YAMAMOTO, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

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
  • HIROMICHI YAMAMOTO
Size
  • 3.6 MB
Category
  • Puzzle
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
  • iPad
    Requires iPadOS 16.0 or later.
  • Mac
    Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Hiromichi Yamamoto
  • Privacy Policy

    • More by HIROMICHI YAMAMOTO