Beautiful Trigonometry
See how trigonometry moves
Free · In‑App Purchases · Designed for iPad
Trigonometry doesn’t have to be confusing.
When my daughter first met sine and cosine in school, she asked,
“Why do we even need this?”
We tried formulas, practice sheets, even flashcards — but it still felt like memorizing rules without meaning.
So I built a way to make it visible.
With sliders, color, and motion, she could see how angles and sides connect — how triangles breathe, how waves emerge, and how every formula has a shape behind it.
That small experiment became Beautiful Trigonometry — an interactive app that turns math from abstract to intuitive.
Instead of memorising, explore.
Move a slider, rotate a triangle, or trace the unit circle — and suddenly, sine, cosine, and tangent make sense.
You’ll discover how to:
- Understand how angles and sides connect
- See how triangles and graphs reflect each other
- Build intuition with the unit circle
- Learn faster using animations and instant feedback
Free to explore:
- Acute Angle Trigonometry: sine, cosine, and tangent made visual
- Full Circle Functions: understand sine and cosine across 360°
- Triangle Area: learn the sine area formula interactively
- Law of Cosines: see it work step by step
Upgrade to PRO and unlock:
- Graphs of all trig functions: sine, cosine, tangent, cotangent, secant, cosecant
- Trig Identities & Formulas: a complete reference
Perfect for
- Students who want trigonometry to finally click
- Teachers and tutors explaining visually
- Anyone who loves learning through discovery
You won’t just study trigonometry — you’ll feel it click.
Part of the Beautiful Math series.
Learn visually. Understand deeply. Move ahead.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
We fixed an issue with sliders on iOS 26 to make interactions smooth again. Thanks for your patience and for learning with Beautiful Math!
The developer, Tomasz Rygula, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tomasz Rygula
- Size
- 7.9 MB
- Category
- Education
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
- Languages
English and 5 more
- English, French, German, Polish, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Trigonometry Access $1.99
- Copyright
- © 2025 Tomasz Ryguła
