Calculus vs Millennium Problems
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculus
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Are you preparing for a calculus exam and need to review limits? Have you always wondered what limits really are and how to master them? Want to learn tips and tricks to solve them efficiently? This is the app for you! Not just a simple formula sheet or a digital textbook—our app provides a comprehensive learning experience tailored to help you succeed in calculus. Here's what you'll find: * A Theory Section: Learn the core concepts, fundamental theorems, and effective methods for solving limits, all explained in a clear and approachable way. * Step-by-Step Examples: Explore solved problems with detailed explanations, guiding you through each step without leaving anything out. * Practice Exercises: Test your skills with categorized exercises, complete with optional hints to help you solve them. Perfect for anyone studying calculus, whether you're in high school, preparing for college entrance exams, or starting university-level math. The app is designed to help you understand fundamental concepts, apply key theorems, and develop effective problem-solving techniques. This app offers a complete and engaging learning resource that aligns with today’s digital learning styles. Whether you're revising for an exam or just looking to deepen your understanding of limits, this app will give you the tools and confidence to succeed.
Millennium Problems
Explore seven unsolved mathematical mysteries, each with a million-dollar prize. This app adapts content for all skill levels, from middle schoolers to doctoral researchers, with interactive 3D visualizations and built-in quizzes. Learn at your own pace, offline, with no ads or subscriptions.
- Explains seven major unsolved math problems
- Content adapts to skill level (Grade 6 to Graduate)
- Interactive 3D visualizations
- Built-in quizzes with XP and badges
- Offline functionality
- Optional biometric lock
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Can you solve a problem worth $1,000,000? The Clay Mathematics Institute has offered a million-dollar prize for each of seven unsolved mathematical problems — and nobody has claimed them yet. Millennium Problems brings these mysteries to life for everyone, from curious 11-year-olds to doctoral researchers. SEVEN LEGENDARY PROBLEMS • P vs NP — Is finding as hard as checking? • Riemann Hypothesis — Where do prime numbers hide? • Yang-Mills & Mass Gap — Why do particles have mass? • Navier-Stokes — Can we predict turbulent fluids? • Hodge Conjecture — What shapes are built from algebra? • Birch & Swinnerton-Dyer — How many solutions does an equation have? • Poincaré Conjecture — The shape of the universe (SOLVED!) EVERY SKILL LEVEL Choose your grade — from Grade 6 to Graduate — and the content adapts instantly. The same problem is explained with simple analogies for a middle schooler and rigorous proofs for a PhD student. INTERACTIVE 3D VISUALISATIONS Every problem comes with a real-time Three.js visualisation. Watch elliptic curves rotate, Riemann zeros appear on the critical line, and fluid particle fields swirl — all rendered natively on your device. BUILT-IN QUIZZES Test your understanding with 5 questions per problem per grade level. Earn XP, track your streak, and collect badges as you explore. WORKS OFFLINE No account. No subscription. No ads. Everything runs locally on your device. OPTIONAL BIOMETRIC LOCK Protect your progress with Face ID, Touch ID, or fingerprint — entirely optional. Whether you're a student looking for a challenge, a teacher seeking engaging material, or a mathematician revisiting the classics, Millennium Problems meets you where you are. Clay Mathematics Institute · $7,000,000 in unclaimed prizes · Since 2000
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Verdict
The clearest difference is price: Millennium Problems at Free against Calculus's $1.99. On ads, in-app purchases, 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
Millennium Problems is free to download; Calculus costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Calculus | Millennium Problems |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Alessandro Cozzarini | Loic Fonkam |
In-app purchases
Calculus
No in-app purchases
Millennium Problems
No in-app purchases





