The Unit Circle App vs Touch Trigonometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Unit Circle App
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Reference the unit circle with ease! The Unit Circle App makes trigonometry simple and interactive. Drag points around the circle to instantly see sine, cosine, and tangent values, radians, degrees, and coordinates. Perfect for homework, school, or brushing up on your math skills. Features: * Interactive unit circle you can explore by touch * Instantly see angles in degrees and radians * Automatic calculation of sin(θ), cos(θ), and tan(θ) * Clear visualization of coordinates on the circle * Simple and distraction-free design for studying Whether you’re preparing for exams, doing homework, or learning trig for the first time, The Unit Circle App is your go-to tool for mastering trigonometric functions.
Touch Trigonometry
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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
Screenshots
Verdict
The clearest difference is in-app purchases: The Unit Circle App at none against Touch Trigonometry's 1. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Touch Trigonometry sells 1 one-off in-app purchase. The Unit Circle App asks for nothing beyond the download.
| Parameter | The Unit Circle App | Touch Trigonometry |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 19 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonathan Raymond Shane Jackson | Aisatsu LLC |
In-app purchases
The Unit Circle App
No in-app purchases
Touch Trigonometry
- Touch Trigonometry$4.99
Questions
Is The Unit Circle App free?
Is Touch Trigonometry free?
Do The Unit Circle App or Touch Trigonometry have ads?
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