GeoCalculate vs Touch Trigonometry

GeoCalculate solves area, perimeter, volume, and surface area for 17 geometric shapes - instantly. Includes a full scientific calculator with trigonometry, logarithms, powers, roots, and memory. The fastest geometry calculator for students, engineers, and curious minds. SCIENTIFIC CALCULATOR - Trigonometric functions: sin, cos, tan, arcsin, arccos, arctan - Logarithms: log10, ln (natural log) - Powers & roots: sqrt(x), x^2, x^3, e^x, 10^x - Constants: pi, e - Extras: x!, |x|, 1/x - Degree / Radian mode - Memory functions: M+, M-, MR, MC SUPPORTED 2D SHAPES - Circle: area, circumference, diameter - Triangle: area, perimeter, height calculations - Rectangle: area, perimeter, diagonal - Square: area, perimeter, diagonal - Ellipse: area, circumference approximation - Parallelogram: area, perimeter - Trapezoid: area, perimeter - Pentagon: area, perimeter - Hexagon: area, perimeter - Rhombus: area, perimeter, diagonals - Regular Polygon: area, perimeter for any number of sides SUPPORTED 3D SHAPES - Sphere: volume, surface area - Cube: volume, surface area, diagonal - Cylinder: volume, surface area - Cone: volume, surface area, slant height - Pyramid: volume, surface area - Rectangular Prism: volume, surface area INTERACTIVE VISUALIZATION Watch each shape come to life on an interactive canvas that updates in real time. Rotate 3D models and see dimensions labeled on the figure - ideal for visual learners. INSTANT CALCULATIONS Results appear the moment you enter a value. Every formula runs automatically so you can explore how changing one dimension affects area, perimeter, or volume. UNIT CONVERSION Switch freely between centimeters, meters, inches, and feet. GeoCalculate converts all units automatically. CALCULATION HISTORY Every result is saved so you can revisit previous calculations and track your work over time. DESIGNED FOR ALL DEVICES - Optimized iPad layout with extra screen space - Dark mode support - Clean, modern interface Available in English and Turkish. Download GeoCalculate now and make every geometry calculation effortless. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Finally understand trigonometry. Touch Trigonometry is the most intuitive way to learn the trigonometric functions. Instead of memorizing formulas, you'll see how sin, cos, tan, and the rest actually work—by touching and exploring a live unit circle and graph. Drag your finger around the circle and watch trig functions respond in real time. You'll be amazed at how quickly the "true meaning" of trigonometry becomes clear. Watch the graph on the right trace their values. In seconds, concepts that confused you for years will suddenly click. This app is great for students struggling with trigonometry or anyone looking for a refresher. HOW IT WORKS On the left: an interactive unit circle. Touch anywhere and drag to change the angle θ (theta). A triangle forms showing the relationships between the angle and the trig values. On the right: live graphs of all six trig functions. As you move the angle, dots trace along each curve showing the current value. Touch the graph side to control the angle from there too. It's bidirectional, immediate, and intuitive. No tutorial needed—just touch and explore. Users have told us that they never understood *why* the trig functions existed—until they used this app. From students to the math curious, Touch Trigonometry offers a truly intuitive way to understand one of the trickiest parts of geometry—at your fingertips! FEATURES • Interactive unit circle with touch control • All 6 trig functions: sin, cos, tan, sec, csc, cot • Live function graphs with real-time value tracking • Bidirectional control (circle or graph) • Right triangle overlay showing opposite/adjacent/hypotenuse • Reference angle markers (30°, 45°, 60°, 90°, etc.) • Switch between degrees and radians • Snap-to-reference-angles mode • Pinch to zoom the graph • Colorblind-friendly color palette • Clean dark theme, no distractions • No ads, no account required WHO IT'S FOR • High school & college students learning trig • Teachers demonstrating concepts in class • Engineers & scientists refreshing fundamentals • Anyone who was told to "just memorize SOHCAHTOA" • Visual learners who need to see it to get it FREE FEATURES • Full unit circle interaction • Sine visualization • Triangle overlay • Degree/radian switching • All UI customization options UNLOCK EVERYTHING (One-Time Purchase) • One-time purchase for lifetime access to all paid features • Cosine, tangent, secant, cosecant, cotangent • All future paid features