Privacy Policy

Who we are

Quantum Native ("we", "us", "our") operates quantumnative.io, Quantris, Quantum Chess, Ponq, Bloch Invaders, and related services. This policy covers all of our properties.

Your Quantum Native account

We use Clerk for authentication. When you sign in with Google, Discord, GitHub, or supported platform accounts such as Steam where available, we receive:

• Your display name and profile picture from the provider
• Your email address
• A unique account identifier

We do not receive or store your password. Authentication is handled entirely by the provider and Clerk.

Your Quantum Native account works across our properties. Signing in on quantumnative.io uses the same account as signing in on Quantris, Quantum Chess, and other games as they join the ecosystem.

What we use your account for

On quantumnative.io

Your account is used for blog comments. We store:

• Comments you post (text, timestamp, which post)
• Emoji reactions you add to comments
• Your display name and profile picture (shown alongside your comments)

On Quantris

Your account is used for game features. We store:

• High scores and leaderboard rankings
• Achievements and progress
• Game statistics and replays

On Quantum Chess

Your account is used for game features. We store:

• Game history, results, and move records
• Ratings and leaderboard rankings
• Game statistics (moves played, quantum moves, measurements)
• Premium entitlement status, subscription status, and linked Steam ownership status where applicable

If you link Steam, we store the Steam account identifier returned by Steam and the account-link status needed to verify ownership, sign in from the desktop app, and grant bundled premium access. We do not publish your Steam account identifier unless you choose to display Steam-related profile information in a feature we provide.

With your consent, we collect analytics data using Mixpanel, including:

• Screen navigation and feature usage
• Game events (starts, completions, mode selection)
• Session recordings of your interactions with the game interface
• Device type, browser, and general location (country level)

Analytics and session recording are only activated after you accept the consent prompt. You can withdraw consent at any time by clearing your browser's local storage for the site.

On other games

As we bring other games into the Quantum Native ecosystem, similar game data (scores, progress, stats) will be associated with your account.

Comment moderation

We may use automated tools (Google's Perspective API) to check comments for toxicity. Comments flagged as potentially harmful may be hidden from public view. We rate-limit comment posting to prevent spam.

Technical data

We automatically collect:

• Device type and browser information
• Anonymous usage analytics (where consent is given)
• Error reports and crash logs

On Quantris, we use Google Consent Mode v2 to gate analytics behind your consent choice. No analytics identifiers are created until you opt in.

Payments and subscriptions

We use Stripe to process web and PWA subscriptions, trials, invoices, receipts, refunds, and the customer portal. Stripe receives the payment and billing information you enter at checkout, such as card details, billing name, billing email, billing address, tax information, and payment authentication data. We receive limited Stripe records needed to operate your account, including customer ID, subscription ID, plan, status, renewal/cancellation dates, trial dates, invoice/payment status, and refund status.

We do not store full card numbers or card security codes. Stripe may process payment information according to its own terms and privacy policy.

Steam purchases and refunds are processed by Valve through Steam. For Quantum Chess Steam-linked entitlements, we use Steam ownership and authentication information only to verify eligibility, link accounts, and manage bundled premium access.

Cookies and local storage

We use browser local storage and cookies for:

• Keeping you signed in (session tokens)
• Saving your preferences (settings, theme)
• Game progress (scores, settings)

These are necessary for the sites and games to function.

Third-party services

• Clerk — authentication
• Convex — real-time backend (comments, game data)
• Cloudflare — hosting and CDN
• Stripe — payment processor for subscription checkout, trials, billing, taxes, invoices, receipts, refunds, and the customer portal
• Steam / Valve — Steam authentication, ownership verification, purchases, refunds, and desktop platform services for Quantum Chess
• Google Sign-In, Discord, GitHub — optional sign-in providers
• Google Perspective API — comment moderation
• Firebase Analytics — anonymous usage analytics (Quantris only, consent required)
• Mixpanel — product analytics and session recording (Quantum Chess, consent required)

Data storage and security

Your account and game data are stored using Convex and Clerk, both of which use encryption in transit and at rest. Payment details are handled by Stripe. Steam purchases and refunds are handled by Valve. We do not sell your personal information.

Your rights

You can:

• Delete your own comments at any time
• Request a copy of your data
• Request deletion of your account and all associated data
• Opt out of analytics (where applicable)

Contact support@quantumnative.io for data requests.

Deleting an account may remove access to game history, comments, premium entitlements, and linked platform records. Some records may need to be retained for fraud prevention, tax, accounting, payment dispute, legal, or security reasons.

Children's privacy

Our services are not directed at children under 13. We do not knowingly collect personal information from children under 13.

Changes to this policy

We may update this policy from time to time. Significant changes will be communicated through our sites or via email.

Contact

Questions about this policy? Email support@quantumnative.io