Comparison

Little Quantum App vs Millennium Problems

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Little Quantum App

Read full description

What is a qubit? How does superposition work? And what is entanglement good for? In the Little Quantum App, Alice and Bob guide you on an accessible journey through the fascinating world of quantum physics. Step by step, you will explore some of the most important concepts of quantum mechanics and discover how ideas that may initially seem abstract can be understood through clear explanations and visual representations. The app combines short, educational animations with interactive elements that help make complex ideas easier to grasp. As you progress through the topics, animations illustrate how quantum states change and how key phenomena of quantum physics arise. After each section, small quizzes allow you to test and deepen your understanding of what you have learned. This combination of explanation, visualization, and interaction makes learning both engaging and effective. The Little Quantum App is the result of a close collaboration between the MCQST Office (Munich Center for Quantum Science and Technology) and the research group of Prof. Steffen Glaser at the Technical University of Munich. The goal of this collaboration is to make fundamental ideas from modern quantum research accessible to a broad audience and to provide an intuitive introduction to the principles of quantum mechanics. At the heart of the app is a special visualization method that represents quantum states as colored spheres. These visual objects are called “qubit beads” and “entanglement beads.” They are based on a mathematical mapping that allows arbitrary quantum states to be displayed in a visual and intuitive way. By observing how the beads move and change, users can develop a clearer understanding of how quantum states evolve. To further support intuitive learning, the digital representations can be complemented by tangible physical models. These hands-on models make it possible to explore quantum concepts not only visually but also spatially. This combination of digital visualization and physical interaction creates a remarkably simple and engaging approach to quantum mechanics. Through this approach, the Little Quantum App opens the door to quantum physics in a playful yet scientifically accurate way. The underlying mathematical structure ensures that the visual explanations remain faithful to the physics while still being easy to understand. The app invites learners to explore the fundamentals of quantum mechanics and discover the ideas behind one of the most exciting fields of modern science.

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

Little Quantum App3 screens
Millennium Problems4 screens

Verdict

The call

The clearest difference is update cadence: Millennium Problems at every 4 days against Little Quantum App's every 2 weeks. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Little Quantum App ships an update every 2 weeks, Millennium Problems every 4 days. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 8 level
Little Quantum App versus Millennium Problems: the parameters behind the verdict, then further details
ParameterLittle Quantum AppMillennium Problems
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size169 MB9 MB
Age rating4+4+
DeveloperLudwig-Maximilians-Universitaet MuenchenLoic Fonkam

In-app purchases

None

Little Quantum App

No in-app purchases

None

Millennium Problems

No in-app purchases

Questions

Is Little Quantum App free?
Little Quantum App is free to download, with no in-app purchases.
Is Millennium Problems free?
Millennium Problems is free to download, with no in-app purchases.
Do Little Quantum App or Millennium Problems have ads?
Neither Little Quantum App nor Millennium Problems shows ads.
Which is updated more often, Little Quantum App or Millennium Problems?
Little Quantum App ships an update every 2 weeks, and Millennium Problems every 4 days. Most recently, Little Quantum App was updated on October 3, 2026 and Millennium Problems on October 9, 2026.

Other comparisons