Quantum Space Club vs Touch Trigonometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quantum Space Club
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Quantum Space Club is the community for stargazers, astronomy enthusiasts, and dark sky lovers. Connect with fellow night sky explorers, learn from experienced astronomers, and discover the wonder of the universe together. COMMUNITY FEATURES Join discussions in dedicated spaces for astrophotography, equipment reviews, viewing tips, and celestial events. Share your night sky photos, get feedback from the community, and be inspired by stunning images from members around the world. Chat in real-time with fellow stargazers in our Night Sky Lounge. Coordinate trips to dark sky destinations, find viewing partners, and connect with people who share your passion. LEARN ASTRONOMY Explore guides on constellations, equipment, viewing locations, and astrophotography techniques. Get your questions answered by knowledgeable community members in Ask an Astronomer. CELESTIAL EVENTS Never miss a meteor shower, eclipse, or planetary alignment. Join virtual watch parties for major celestial events with live commentary and real-time photo sharing. Stay informed with our celestial events calendar and get notified about upcoming astronomical phenomena visible from your location. DARK SKY DESTINATIONS Discover the best dark sky locations across the American Southwest and beyond. Read trip reports and reviews from community members. Plan your next stargazing adventure with tips on timing, gear, and accommodations. Learn about International Dark-Sky Association certified locations and join the movement to protect our night skies from light pollution. MEMBER BENEFITS Earn points and unlock benefits as you engage with the community. Progress through tiers from Explorer to Cosmos Club and access premium content, events, and experiences. Connect with a global community united by wonder for the night sky. Whether you are a complete beginner or an experienced astrophotographer, there is a place for you in Quantum Space Club. Download now and start your journey through the cosmos.
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: Quantum Space Club 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. Quantum Space Club asks for nothing beyond the download.
| Parameter | Quantum Space Club | Touch Trigonometry |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 90 MB | 48 MB |
| Age rating | 17+ | 4+ |
| Developer | Calvanta | Aisatsu LLC |
In-app purchases
Quantum Space Club
No in-app purchases
Touch Trigonometry
- Touch Trigonometry$4.99
Questions
Is Quantum Space Club free?
Is Touch Trigonometry free?
Do Quantum Space Club or Touch Trigonometry have ads?
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