Trigonometry Toolkit by CS
Learn Trig by Doing
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Master trigonometry faster with an interactive unit circle, smart solvers, graphing, quizzes, and a daily challenge — all in one focused toolkit.
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.
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The developer, ChatStick Company Limited, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
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Information
- Seller
- ChatStick Company Limited
- Size
- 10.9 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Unlock All Features + Remove Ads $1.99
- Copyright
- © ChatStick Co.,Ltd.