Touch Trigonometry vs Trigonometry Toolkit by CS

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

Trigonometry Toolkit helps students learn faster by combining visual tools, calculators, and practice in one clean app. Core tools: • Interactive Unit Circle: Drag and explore angles, sin/cos/tan values, quadrants, reference angles, and exact values. • Right Triangle Solver: Solve sides, angles, area, and perimeter quickly. • General Triangle Solver (Premium): Solve SSS, SAS, ASA, AAS, and SSA (ambiguous case). • Degree/Radian Converter: Convert instantly in both directions. • Exact Value Finder: Check common exact trig values. • Trig Identities: Search and review identities with examples. • Graphing Tool: Plot trig functions and transformations. • Reference Angle, Coterminal, Arc Length & Sector Area calculators. Practice features: • Category-based quizzes with Easy / Medium / Hard levels. • Daily Challenge mode (5 mixed questions). • Performance insights: streak, best streak, attempts, and average accuracy. • Recent activity and continue-learning flow. Reference and study support: • Formula list with category filters and search. • Save favorites and review recent history. • Built-in reference pages for key identities and graph rules. Premium (one-time purchase): • Remove ads • General Triangle Solver • Advanced graphing options • Unlimited quizzes • Detailed explanations • Unlimited history and favorites • Access to premium identity sets and future premium updates Designed for learners, exam prep, and classroom support.