Three tabs, today's lesson, and a 5-minute start. New since 12.3.0: • Learn opens on "Today's lesson": one next lesson, picked from where you left off. New here? Three polarizers — 5 minutes, no sign-in. Finish it and the card says "Done today" and shows what is up next. • Your day streak shows without signing in. It counts the days you finish a lesson, kept on your device; the Me tab shows the same number. • Learn · Tutor · Me: one tab each for lessons, the tutor and your profile. Levels 1–5 and five tutor questions a day are free, and those numbers are on the first screen. • Tutor is a tab: one input, your recent questions and a concept search. Quick yes/no (Oracle), conversations and My Quantum Notebook are in the ⋯ menu. • Me: notebook, progress and streak, achievements, leaderboard, subscription and settings in one place. Nothing was removed. • One welcome screen; the one-question profile comes after the first unit. • In a class? After you join with your teacher's code, your teacher can follow your progress on a read-only web page — display names and lesson steps only, never what you ask the tutor. Thank you for learning quantum with us!

My Quantum Notebook, saved notes you control, and an interferometer you can take apart. • My Quantum Notebook (Profile → Settings, sign-in required): topic pages built from tutor answers that passed the HallucinationGuard check and from your journal entries, with linked concepts, search and a small map of how your pages connect. Each note says where it came from and which model wrote the answer. • What the tutor remembers: see the saved notes the tutor can use, delete one or all, export them as a JSON file, or turn saving off. Notes and pages are kept for 365 days. • Interference concept page: an interactive illustration of a Mach–Zehnder interferometer that works offline. Block an arm or turn the phase and read P(D0), P(D1) and P(absorbed) from an idealized single-photon model. Thank you for learning quantum with us!

Clearer daily limits. • Plan screens now show each allowance as a number: Pro includes all 46 levels, 200 AI tutor questions and 50 Quantum Oracle questions a day. • When you reach a daily limit, the app tells you when it refills, in your local time. • Quantum Oracle: once today's questions are used up, the app asks before using an Oracle token or an AI credit. Nothing is spent without your OK. • Calibration Lab (Pro): up to 100 runs a day for each experiment. Reaching the limit now shows a clear notice instead of doing nothing, and your saved results stay available. • Changing your password now keeps you signed in on this device; for your security, your other devices are signed out. • Wording fixes in all 7 languages. Thank you for learning quantum with us!

A new way to start: from experiments to geometry. • New in Campus, before the numbered levels: "From experiments to geometry". Two short experiments where everyday intuition fails (three polarizers and an interferometer), three rules that explain them, then the same rules drawn as an arrow on a circle, up to complex numbers and two entangled qubits. Free, and no sign-in needed. • Predict before you run: every experiment asks for your prediction first, then explains each answer, including why the everyday guess goes wrong. • Redraw from memory: at the end of a lesson the picture is hidden and you rebuild it with Apple Pencil, your finger, or by typing the numbers. All three are checked the same way. • Replay how you drew it: see your strokes, pauses and corrections again. This record stays on your device only. It is not sent anywhere or used for research, and resetting the lesson removes it. • Explain it in words: write one sentence, then compare it with a model explanation and common misconceptions. Your sentence is not sent anywhere. • All experiments are simulated on your device and labelled as such. For the polarizers, you can also try the real thing with three pieces of polarizing film. • "Go to Lab" after a lesson now opens the Workbench free experiment, and several new lessons have a "Try it in Workbench" button. • More accurate explanations: we rewrote lessons, quizzes and concept pages that described a qubit as a spinning coin or as "0 and 1 at the same time". Entanglement lessons now make clear that no message travels, and application lessons say which advantages are still research. • Research study (optional, adults only): the consent screen now says plainly that shared data is linked to your account ID (pseudonymous, not anonymous) and lists what is collected. Withdrawing stops sending at once and discards anything not yet sent, and the pilot survey appears only to adults who opted in. Also new since the last App Store version: • The tutor asks before sending your question to the cloud when it cannot answer on your device, and answers it cannot verify are folded behind an "Unverified answer" notice. • Tutor conversations are saved: reopen one, continue it, or delete it. • When you reach the daily tutor limit, the app shows when it refills and offers on-device alternatives. • AI credits are kept in your account, so they survive a reinstall or a change of device. • Workbench: the sandbox simulates the circuit you build, Bridge console numbers come from the run that was actually simulated, and a new Calibration Lab card is labelled as an illustrative simulation. • The Oracle game now says its random numbers are ordinary ones, not quantum. • Levels 25 to 46 are fully translated into all 7 languages. • Finishing a lesson marks the level complete and awards its XP, and quiz scores are saved. • Siri and Shortcuts open the right screen. • Fixed a bug that could sign you out right after signing in, and purchases are delivered more reliably. • The activity ticker on Home is gone, because its numbers were not real. Thank you for learning quantum with us!

Join your class with a code: • Your teacher gives you a code. Type it in and you land straight on the level your class is working on. • You are told up front which levels you can practise on your own device — no getting stopped halfway through a task. • Your teacher sees how far you got. What you ask the AI Tutor stays yours. • Teaching a class? Create it at edu.swiftquantum.tech/chalk and you get the code to hand out. The lesson kit, projector mode and answer sheet live there too. Your learning now follows you everywhere: • Your progress syncs to your account — levels, XP, daily streaks and completed lessons stay in sync across iPhone, iPad and Mac. Pick up exactly where you left off on any device. • AI Tutor conversations are now saved to your account, so your history is right there when you come back. • The AI Tutor's answers are beautifully formatted — clean headings, tidy step-by-step lists and real mathematical notation instead of raw text. • When our Terms or Privacy Policy change, you can read the updated document in your own language and confirm it right inside the app — no hunting through a website. Thank you for learning quantum with us!

Your learning now follows you everywhere: • Your progress syncs to your account — levels, XP, daily streaks and completed lessons stay in sync across iPhone, iPad and Mac. Pick up exactly where you left off on any device. • AI Tutor conversations are now saved to your account, so your history is right there when you come back. • The AI Tutor's answers are beautifully formatted — clean headings, tidy step-by-step lists and real mathematical notation instead of raw text. • When our Terms or Privacy Policy change, you can read the updated document in your own language and confirm it right inside the app — no hunting through a website. Thank you for learning quantum with us!

Your learning now follows you everywhere: • Your progress syncs to your account — levels, XP, daily streaks and completed lessons stay in sync across iPhone, iPad and Mac. Pick up exactly where you left off on any device. • AI Tutor conversations are now saved to your account, so your history is right there when you come back. • The AI Tutor's answers are beautifully formatted — clean headings, tidy step-by-step lists and real mathematical notation instead of raw text. Thank you for learning quantum with us!

See the hardest ideas, not just read about them: • Advanced lessons now come alive with their own animations. Instead of one generic visual, tough topics — quantum cryptography, error correction, tensor networks, the black-hole information puzzle and more — each get a clear, purpose-built animation, so the ideas hardest to picture finally click. • Clearer tutor answers: Lumen now replies with clean summaries and easy-to-read structure, so the explanation is simpler to follow. • Stability and performance improvements. Questions or ideas? We'd love to hear from you.

The whole library, now in your pocket: • All 77 source-verified concepts now come built in — browse the entire Concept Library offline from your very first launch. Frontier topics included: logical qubits and quantum error correction, magic states, topological qubits (with the honest state of that debate), post-quantum encryption, and Copenhagen vs Many-Worlds — presented as the open question it really is. • New: concept links inside lessons. Tap a highlighted concept in any lesson to jump straight to its full encyclopedia page — then pick up right where you left off. • New: every one of the 46 levels now has simple-explanation cards — a plain-language explanation, one crisp analogy, a real-world example, and a fun fact. For when you want it explained simply first. • Facts refreshed across all 7 languages: fast-moving topics like investment, jobs, and hardware records now carry named sources and "as of" dates — no more unsourced numbers. • Stability and performance improvements. Questions or ideas? We'd love to hear from you.

• New Concept Library (Settings → Concept Library): browse all 60 source-verified quantum concepts — from qubits down to real hardware — searchable and in 7 languages. Each one comes with a kid-friendly analogy, a precise university-level definition, a word-origin memory hook, and a practice quiz. • Every concept now has its own animated visualization: watch a qubit snap to 0 or 1 under measurement, an interference pattern wash out as decoherence hits, Grover's amplitudes grow round by round… 60 concepts, 60 animations. (Respects Reduce Motion.) • New honesty badges on every concept: established facts show the actual research paper they rest on, and time-sensitive facts carry an as-of date — right on screen. Verified, not just claimed. • Stability and performance improvements. Questions or ideas? We'd love to hear from you

• Meet Lumen, your honesty-first quantum tutor — clearer answers, and it tells you when it isn't sure. • Sharper, concept-matched lesson visuals across the curriculum. • Accessibility improvements throughout, including VoiceOver. • Stability and performance fixes. Questions or ideas? We'd love to hear from you.

The complete way to learn quantum computing — now even more welcoming. A 46-lesson course, beginner to advanced: go from "what's a qubit?" to algorithms, cryptography, and error correction at your own pace. A unique animation for every concept: superposition, entanglement, the Bloch sphere, interference and more — each idea brought to life by a visual built just for it. Lumen, your AI tutor: ask anything and get a clear, step-by-step explanation that checks itself for accuracy before you see it. The Quantum Lab: build real quantum circuits, run them, and watch the results. Stay motivated: daily challenges, streaks, achievements, and a global leaderboard. Accessible to everyone: full VoiceOver support and assistive gestures across the app, so screen-reader users can complete the whole course independently — in all 7 languages. New: privacy is your choice: research data sharing is off by default, anonymous, adults-only, and you can turn it off anytime in Settings — no pop-ups, no pressure. Yours, everywhere: works fully offline and one Pro purchase unlocks iPhone, iPad, and Mac. Curious to confident. Quantum, made approachable.

Now accessible to everyone. VoiceOver across the entire app: every button, every gate, every Bloch-sphere rotation now reads out loud with a clear label. Screen-reader users can complete the full 46-step curriculum independently. One-handed and assistive gestures: ask your AI tutor with a Magic Tap. Consult the Oracle with a three-second hold. Rotate the Bloch sphere by swiping — all with assistive labels that say what they do, not just what they are. 23 new accessibility lines × 7 languages = 161 native translations: nothing falls back to English. Korean, Japanese, Simplified Chinese, Spanish, French, German — each in their own voice. Compliant by design: KOSA (US), EAA (EU), WCAG 2.1 AA — the gates that protect learners are gates we pass on purpose. Reliability fix behind the scenes: the AI tutor now answers on the first try for every learner, including App Store reviewers — a quiet error path no one should have hit, fixed at the root. Quantum, made honest. Now accessible to everyone.

v11.1.2 — Private AI Quantum Tutor + Enhanced Security ON-DEVICE AI QUANTUM TUTOR: - Ask anything about quantum computing — your personal AI tutor answers instantly - 100% private: your learning data never leaves your device - Adapts to your level — beginner, intermediate, or advanced - Works in 7 languages including English, Korean, Japanese, and Chinese - Expert-verified answers backed by 33 quantum concepts - Works offline — no internet required NEW FEATURES: - "Hey Siri, start my quantum lesson" — voice-activated learning - Socratic tutoring mode — learn through guided questions - Quantum Quotient score (0-1200) tracks your overall mastery - Weekly challenges and monthly lab experiments with certificates - 9 new quantum gates: CNOT, SWAP, Toffoli, and more - Refreshed design with translucent glass-style cards - IEEE Research Participation: tap "Participate" to unlock 28 days of Pro for free SECURITY: - Enhanced connection security for all API communications - Device integrity verification - Age-appropriate content settings for younger learners IMPROVEMENTS: - Real quiz grading with detailed feedback - Leaderboards now support weekly and monthly rankings - 500+ common misconceptions database for better learning - All text fully localized in 7 languages

v11.1.1 — Private AI Quantum Tutor + Enhanced Security ON-DEVICE AI QUANTUM TUTOR: - Ask anything about quantum computing — your personal AI tutor answers instantly - 100% private: your learning data never leaves your device - Adapts to your level — beginner, intermediate, or advanced - Works in 7 languages including English, Korean, Japanese, and Chinese - Expert-verified answers backed by 33 quantum concepts - Works offline — no internet required NEW FEATURES: - "Hey Siri, start my quantum lesson" — voice-activated learning - Socratic tutoring mode — learn through guided questions - Quantum Quotient score (0-1200) tracks your overall mastery - Weekly challenges and monthly lab experiments with certificates - 9 new quantum gates: CNOT, SWAP, Toffoli, and more - Refreshed design with translucent glass-style cards SECURITY: - Enhanced connection security for all API communications - Device integrity verification - Age-appropriate content settings for younger learners IMPROVEMENTS: - Real quiz grading with detailed feedback - Leaderboards now support weekly and monthly rankings - 500+ common misconceptions database for better learning - All text fully localized in 7 languages

v10.0.0 -Real-Machine Quantum Sandbox + Enhanced AI Tutor - NEW: Real-Machine Quantum Sandbox -run circuits on neutral-atom quantum hardware with live visualization - NEW: AI Personalized Tutor -adapts explanations to your learning history, quiz scores, and expertise level - NEW: Inline personalized quizzes with score tracking inside the AI chat - NEW: Quick actions -Explain Formula, Quiz Me, Review Weak Areas, My Progress - NEW: Tap any formula for instant AI explanation - NEW: Community Challenges -compete with learners worldwide - NEW: Math Bridge and Graduated Feedback for deeper understanding - Gamification: badges, streaks, and community challenges - 52 new tutor localization keys across 7 languages