GeoFormulas by ChatStick vs SectionLab

Take the stress out of geometry! GeoFormulas is your all-in-one learning and calculation app designed for students, teachers, and curious minds. With interactive diagrams, clear step-by-step explanations, and instant calculators, you’ll never be stuck on a formula again. Whether you’re studying for class, teaching in the classroom, or simply brushing up on your math skills, GeoFormulas makes geometry engaging and easy to understand. Why you’ll love GeoFormulas: • Huge Formula Library – Explore 50+ 2D & 3D shapes with area, perimeter, surface area, and volume formulas.

 • Interactive Diagrams – Move sliders, change dimensions, and watch shapes transform in real time.

 • Instant Calculator – Enter values and get results immediately with unit conversions built in.

 • Learn While You Calculate – Read simple explanations and discover how each formula works.

 • Track Your Work – Save favorites, view history, and share results with friends or classmates.

 • Beautiful Themes – Customize the look of the app with fun, colorful designs.
 
 Go Premium and Unlock All Features: • Access to all 50+ shapes and formulas

 • Step-by-step derivations and deeper explanations

 • Unlimited history and favorites

 • Premium themes and customization

 • Ad-free experience

 With GeoFormulas, geometry becomes clear, interactive, and enjoyable. Download today and make geometry simple!

SectionLab transforms abstract geometry into a hands-on, visual experience. Perfect for students, teachers, and anyone curious about how 2D relates to 3D. BUILD mode — See 2D become 3D Watch flat shapes transform into solid objects through three different mechanisms: • Rotate: Spin a rectangle into a cylinder, a triangle into a cone, or a semicircle into a sphere • Translate: Extrude a circle upward to form a cylinder, or a square into a cube • Roll: Curl a flat plane into a cylindrical surface Drag the progress slider to control how far the transformation goes, or hit Auto Play for a seamless demonstration. CUT mode — Slice 3D shapes to see inside Choose from five geometric solids (cube, cuboid, cylinder, cone, triangular prism) and cut them with an adjustable slicing plane: • Move the cutting plane up/down and tilt it in any direction • Pull the two halves apart to examine the cross-section in detail • Toggle visibility of each half to focus on either side • Use the Cross-Section Dictionary for instant access to classic cuts (circle, ellipse, triangle, hexagon, and more) Why SectionLab? • Fully interactive 3D — pan, rotate, and zoom with touch gestures • No internet required — all 3D rendering runs locally • Multi-language support: English, 中文, 日本語, 한국어 • iPad-optimized with large touch targets • Clean, distraction-free interface designed for focused learning Perfect for: - Middle school and high school geometry students - Teachers looking for classroom demonstration tools - Self-learners exploring spatial reasoning - Anyone curious about the math behind 3D shapes