FAQ

Physo.click is a modern interactive physics learning platform for students, teachers, and parents. It combines step-by-step lessons, interactive simulations, quizzes, and an AI teacher to make physics engaging and understandable.

The platform covers the school physics curriculum for grades 7 through 12, presented in a game-inspired format with XP, levels, achievements, and rewards.

Yes! All lessons, simulations, and quizzes are completely free for everyone. You can learn physics without paying anything.

An optional Premium subscription unlocks unlimited AI teacher, homework helper, exclusive avatars, and other extras — but it is not required to learn.

Physo.click is designed for:

- Students in grades 7-12 who want to learn or review physics
- Teachers who want interactive lessons and student progress tracking
- Parents who want to support their children's learning
- Self-learners of any age who are curious about physics

Currently, Physo.click focuses exclusively on physics. The curriculum covers mechanics, optics, thermodynamics, electricity, waves, and more.

We plan to expand coverage over time, but physics is our primary focus.

You can browse topics and read study materials without an account.

However, to take interactive lessons, earn XP, track progress, and use the AI teacher, you need to create a free account.

Physo.click works on any device with a modern web browser: computers, tablets, and smartphones.

The platform is fully responsive and optimized for both desktop and mobile use.

We recommend using the latest version of Chrome, Firefox, Safari, or Edge.

The platform works best in modern browsers that support HTML5 and JavaScript. Internet Explorer is not supported.

1. Create a free account at Physo.click
2. Choose a physics domain (like Mechanics or Optics)
3. Select a topic
4. Start the interactive lesson

Lessons guide you step by step through each concept with explanations, simulations, and quizzes.

Click "Register" on the homepage. You'll need to provide your name, email, and password, and choose your role (student or teacher).

You can also sign in with Google for faster registration.

Click "Forgot password?" on the login page. Enter your email address and we'll send you a reset link.

The link is valid for 60 minutes. Check your spam folder if you don't see the email.

When you register, we send a welcome email with a "Confirm Registration" button. Click it to verify your email address.

The verification link is valid for 7 days. If it expires, use the Contact & Support page to request a new one.

Go to your Profile page (click your avatar in the header). You can change your name, nickname, grade, language preference, and avatar.

Email addresses cannot be changed after registration.

On your Profile page, click "Change avatar" to open the avatar picker. Avatars are organized into themed collections like Space, Science, Gaming, and more.

Avatars are unlocked as you earn XP and level up. Higher levels unlock more impressive avatars.

You can change the language in two ways:

1. Click the language selector in the header
2. Go to your Profile page and select your preferred language

Currently, English, Russian, and Lithuanian are supported.

A Teacher Code is a unique 6-character code assigned to every teacher account. Teachers share this code with students so they can link to the teacher's class.

Students enter the code on their Profile page or use the join link the teacher provides.

To delete your account, please submit a request through the Contact & Support page. We will remove your account and all associated data.

Note: This action is permanent and cannot be undone.

Yes! You can register or log in using your Google account. Click the "Sign in with Google" button on the login or registration page.

Your Google profile information is only used for authentication. We don't access your Google data.

Students can add up to two parent or guardian email addresses on their Profile page.

Parent emails are verified separately — each parent receives a confirmation email. In the future, parents will be able to monitor their child's learning progress.

Every lesson follows an engaging structure:

1. Hook — a fascinating question or paradox
2. Prediction — you make a guess
3. Explanation — short, visual concept explanation
4. Simulation — interactive experiment with sliders
5. Quiz — test your understanding
6. Boss challenge — a harder problem
7. Bonus content — optional extra XP
8. Reward — your earned XP and stars

Your lesson progress is tracked automatically. If you leave before finishing, simply open the same lesson again.

Note: During Early Access, mid-lesson saves are limited. It's best to complete a lesson in one sitting (usually 5-15 minutes).

Yes, you can retake any lesson at any time. Simply open the lesson again and start from the beginning.

Your best XP score for each lesson is kept — retaking a lesson can only improve your score, never lower it.

Don't worry! Wrong answers are part of learning. When you answer incorrectly:

1. You'll see an explanation of why the answer was wrong
2. You can try again
3. Hints are available if you're stuck

There's no penalty for retrying, but getting it right on the first try earns bonus XP.

Most lessons take between 5 and 15 minutes to complete. Each screen shows just one concept, so you can learn at your own pace.

Some lessons with simulations and boss challenges may take a bit longer.

You earn 1 to 3 stars per lesson based on your accuracy:

- 3 stars: No mistakes
- 2 stars: 1-2 mistakes
- 1 star: 3 or more mistakes

You can retake lessons to improve your star rating.

Some lessons require you to complete prerequisite topics first. The curriculum is structured so that each concept builds on previous knowledge.

During Early Access, some lessons may also be locked because they haven't been created yet.

Simulations let you experiment with physics concepts using sliders and animations. For example, you can change the mass and acceleration to see how force changes.

Move the sliders to adjust variables and watch the visualization respond in real time. A reset button returns everything to defaults.

Near the end of each lesson, you may find "Want more?" bonus screens. These contain extra content like:

- Philosophy connections
- Modern research
- Ancient wisdom connections

Each bonus card you open earns +5 XP. You can skip bonuses if you prefer.

XP (Experience Points) is a measure of your learning progress. You earn XP by completing lessons, answering questions correctly, and exploring bonus content.

XP is displayed with a brain icon throughout the platform. Your total XP is shown in the header.

Your level (0-18) is calculated from your total XP. As you complete more lessons across all domains, your level increases.

Higher levels unlock new avatars in every collection. Level 18 is the maximum, representing mastery of the full curriculum.

Click the XP badge in the header (or go to /achievements). You'll see:

- Your current level
- Total XP earned
- Progress bar to the next level
- Number of unique lessons completed

XP is awarded when you complete a lesson (reach the reward screen). If you leave before finishing, XP is not saved.

Also, each lesson only counts once for your total — if you've already earned XP for a lesson, replaying it will only improve your score if you do better.

The maximum XP depends on the number of topics in the curriculum. Each topic has a maximum of 85 XP. As more topics and lessons are added, the maximum increases.

You can see your progress toward the maximum on the achievements page.

Your total XP is based on your best score per lesson. Repeating a lesson can only improve your score if you make fewer mistakes — it won't add duplicate XP.

This prevents XP farming and keeps the system fair.

Premium is an optional paid subscription that enhances your learning experience. It includes:

- Unlimited AI Teacher requests
- AI Homework Helper
- AI Exam Preparation
- AI Personal Tutor
- Premium avatar collections
- Premium profile badge
- Early access to new features
- Priority support

All core physics lessons, simulations, and achievements remain completely free.

During Early Access, Premium is available at special discounted prices:

- Monthly: $2.99/month (regular price $4.99)
- Yearly: $17.99/year (regular price $39.99) — saves over 50%

Early Access subscribers keep their discounted price for as long as their subscription remains active.

There are two ways to get Premium:

1. Subscribe directly on the Pricing page — choose a monthly or yearly plan
2. Support through Patreon (patreon.com/PhysoClick) or Boosty (boosty.to/physo.click) — every active supporter automatically receives Premium

Both options can be cancelled anytime.

There are four support levels:

1. Basic — essential supporter perks
2. Advanced — additional features
3. Super — premium rewards
4. Hero — maximum benefits and recognition

Each tier includes all benefits from lower tiers.

Supporters get access to two special avatar collections: Supporter and Premium. These collections contain unique, beautifully designed avatars that are not available to regular users.

These avatars are unlocked immediately when you become a supporter.

Yes, you can cancel anytime.

For direct Premium subscriptions, manage your subscription from your Profile page.

For Patreon or Boosty, cancel through their respective platforms.

Your Premium benefits remain active until the end of your current billing period.

Supporter rewards are currently applied manually. If you've subscribed and don't see your rewards within 24 hours, please submit a request through the Contact & Support page with your Patreon/Boosty username.

Automatic reward syncing is planned for a future update.

Premium provides immediate access to digital features, so refunds are generally not available.

However, if something went wrong with your purchase, you were charged by mistake, or you experienced a technical issue, please contact us through the Contact & Support page. We review every case individually.

Physo.click is an independent educational project with no ads, no investors, and no company behind it. Every lesson, AI explanation, simulation, and translation is made possible by supporters.

By supporting the project, you help create more free physics content for students worldwide.

The AI teacher can explain any lesson concept in simpler terms. On each lesson screen, you'll see a neuron icon button in the top-right corner.

Click it to get a personalized explanation. If the first explanation is still unclear, you can request an even simpler version.

Free users have a limited number of AI teacher requests per month. When you reach the limit, you'll see a message suggesting you support the project.

Premium supporters get significantly higher AI request limits.

AI explanations are generally accurate, but mistakes can happen. If you notice an incorrect explanation, please report it using the feedback form.

The AI is a supplementary tool — the lessons themselves are the primary source of correct physics information.

Only minimal context is shared with the AI provider: the current lesson topic, your grade level, and the content of the screen you're asking about.

Your personal information, progress data, and conversation history are not shared.

The AI teacher is designed to explain lesson concepts, not solve homework problems. It provides explanations for the current lesson content only.

For homework help, we recommend reviewing the relevant lesson topics on Physo.click.

The AI teacher may be temporarily unavailable due to:

- Monthly request limit reached (free users)
- Temporary service interruption
- Maintenance

All lessons work perfectly without the AI teacher — it's an optional enhancement.

During registration, select "Teacher" as your role. You'll automatically receive a unique Teacher Code that you can share with your students.

Teacher accounts have additional features like student progress tracking and lesson plans.

Your Teacher Code is displayed on your Profile page. You can:

1. Copy the code and share it directly
2. Share the invite link (physo.click/join/YOUR_CODE)

Students who click the link or enter the code will be automatically linked to your class.

The teacher dashboard shows all students linked to your account:

- Student names and avatars
- Total XP earned per student
- Lessons completed per domain
- Filtering by grade, domain, or student name

Yes! When logged in as a teacher, you can see detailed lesson plans on the study material page for each topic. Plans include:

- Duration and objectives
- Materials needed
- Activity phases with timing
- Tips and common misconceptions
- Differentiation suggestions

Currently, a student can only be linked to one teacher at a time. The student can change their teacher by entering a different Teacher Code on their Profile page.

Multiple teacher support is planned for a future update.

Teachers can see:
- Student names and display names
- XP earned and lessons completed
- Domain-level progress

Teachers cannot see student emails, passwords, or detailed answer history.

Physo.click currently supports three languages:

- English
- Russian
- Lithuanian

All lessons, interface elements, and AI explanations are available in these languages.

Click the language selector in the header to switch between available languages. Your choice is saved to your profile if you're logged in.

The language affects the entire interface, lessons, and AI teacher responses.

Yes! We plan to add Spanish and French in the future, followed by other languages based on community demand.

If you'd like to help translate Physo.click into your language, let us know through the Contact & Support page.

Physo.click is aligned with internationally recognized standards including NGSS (US), Lithuanian national curriculum, and IB Physics.

The content is designed to be useful regardless of your specific school curriculum.

We strive for high-quality translations, but some may contain errors. If you find an incorrect translation, please report it using the report button on the page or through the Contact & Support page.

Your reports help us improve the platform for everyone.

Lesson completion and XP are saved automatically when you finish a lesson. Your total XP and achievements are stored in the cloud.

Mid-lesson progress (which screen you're on) is not saved between sessions during Early Access.

Yes! Your account, XP, and progress sync across all devices. Simply log in with the same account on any device.

Just make sure to complete your current lesson before switching devices.

Physo.click requires an internet connection to load lessons, track progress, and use the AI teacher.

Offline mode is not currently available but is being considered for future development.

Progress loss is extremely rare. Common causes include:

- Leaving a lesson before it completed
- Using a different account
- Browser cache cleared

If you believe your progress was lost, please submit a request through the Contact & Support page with your account email.

Slow loading is usually caused by:

- Poor internet connection
- Browser cache issues — try clearing cache or using incognito mode
- Outdated browser — update to the latest version

If the problem persists, try a different browser.

Physo.click is optimized for mobile browsers. If you're experiencing issues:

1. Make sure your browser is up to date
2. Try rotating your phone to landscape for simulations
3. Clear browser cache
4. Disable any ad blockers that might interfere

Report persistent issues through the Contact & Support page.

Common solutions:

1. Check that you're using the correct email address
2. Try resetting your password
3. If you registered with Google, use the Google sign-in button
4. Clear browser cookies and try again

If nothing works, submit a request through the Contact & Support page.

Interactive simulations require JavaScript to be enabled and a modern browser. If they aren't working:

1. Check that JavaScript is enabled
2. Disable ad blockers for physo.click
3. Try a different browser
4. Update your browser to the latest version

If physo.click is temporarily unavailable, it's likely due to a scheduled update or maintenance. Updates typically take less than 5 minutes.

The maintenance page will auto-refresh when the update is complete. Try again in a few minutes.

The method varies by browser:

- Chrome: Settings > Privacy > Clear browsing data
- Firefox: Settings > Privacy > Clear Data
- Safari: Develop > Empty Caches
- Edge: Settings > Privacy > Clear browsing data

Select "Cached images and files" and clear.

Use the report button (flag icon) in the bottom-right corner of any page. Describe the problem, and your report will be sent to our team.

Include details like what you were doing, what browser you use, and any error messages you see.

Scientific accuracy is extremely important to us. Please report any physics errors using the report button on the page or through the Contact & Support page.

Include the lesson name, the specific screen, and what you believe is incorrect. We will review and fix it promptly.

Absolutely! We love hearing from our users. Submit your feature suggestions through the Contact & Support page.

We read every suggestion and prioritize features that benefit the most learners.

Yes, please! Even small typos affect the learning experience. Use the report button on the page or submit through the Contact & Support page. Include the page or lesson where you found it.

We appreciate your attention to detail.

We aim to review all reports within a few days. Critical issues (broken lessons, incorrect physics) are prioritized.

During Early Access, response times may vary as our team is small.

We store only what's needed for the platform to work:

- Account info (name, email, role)
- Learning progress (XP, completed lessons, stars)
- Profile settings (avatar, language, grade)

We do not sell your data or share it with advertisers.

Yes. Submit a data deletion request through the Contact & Support page. We will remove your account and all associated data within 30 days.

This action is permanent and cannot be undone.

We use essential cookies for authentication and session management. We do not use advertising cookies or third-party tracking.

For more details, please read our Privacy Policy.

Your password is encrypted using industry-standard hashing. We also implement:

- Rate limiting on login attempts
- Secure session management
- HTTPS encryption for all connections
- Security headers to prevent common attacks

Yes. Physo.click is designed with student safety in mind:

- No ads or third-party tracking
- No social features or messaging between users
- Minimal data collection
- Parent email verification support

Students can add parent emails for additional oversight.

Physo.click is currently in Early Access, which means the platform is live and usable but still under active development.

New lessons, features, and improvements are being added regularly. Some planned features may not yet be available.

As an Early Access platform, not everything is built yet. We're prioritizing the most impactful features first.

The core learning experience (lessons, XP, AI teacher) is fully functional. More advanced features will be added over time.

We regularly update the platform with improvements. During Early Access, you may notice design changes, new features, or reorganized content.

These changes are always aimed at improving the learning experience.

We value your feedback! You can:

1. Use the report button on any page
2. Submit through the Contact & Support page
3. Leave comments on our Patreon/Boosty pages

Your feedback directly shapes the future of Physo.click.

We share updates about upcoming features through our Patreon and Boosty pages. Major updates are also announced on the platform.

A dedicated public roadmap is planned for the future.

During Early Access:

- Not all physics topics have lessons yet
- Mid-lesson progress isn't saved between sessions
- Some languages may have incomplete translations
- Mobile experience is still being optimized
- Supporter rewards are applied manually

We're actively working to address each of these.

Physo.click is built by an independent physics teacher with no corporate backing. Running the platform involves server costs, AI services, content creation, and development.

Every contribution helps keep the platform free for students worldwide.

Supporter contributions go directly toward:

- Server and hosting costs
- AI teacher service fees
- New lesson and content creation
- Platform development and improvements
- Translation and localization

We operate transparently and keep costs minimal.

Both Patreon and Boosty primarily offer monthly subscriptions. However, you can subscribe for one month and then cancel — your support for that period is still greatly appreciated.

We may add one-time donation options in the future.

The best way to reach us is through the Contact & Support page. Our AI assistant will first try to answer your question from our knowledge base. If it can't help, you can submit an inquiry directly to our team.

You can also use the report button (flag icon) on any page for page-specific issues.

We try to respond to all inquiries within a few days.

You can find us on:

- Patreon: patreon.com/PhysoClick
- Boosty: boosty.to/physo.click

More social media channels are planned for the future.

If something isn't working as expected, it's a bug — use the report button on the page or the Contact & Support page.

If you have an idea for something new, it's a feature request — submit it through the Contact & Support page.

Both are equally valuable to us!

We welcome community contributions! If you'd like to help with translations, content review, or physics expertise, please reach out through the Contact & Support page.

Teachers and physics enthusiasts are especially welcome.