Trigonometry Toolkit by CS

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.