Privacy policy

QS Mind runs this website and its products, including Quanta, and decides how the personal data described here is used. QS Mind is a sole proprietorship registered in Egypt. You can reach us at hello@qsmind.app.

If you sign in, the company website and Market prices retain your central account and session identifiers, name, verified email, a hashed application-session token and a server-only sign-out token. We use them to show your account, return you to the page you chose and check whether the central account session remains active. Application sessions expire after 30 days at most, end on sign-out or revocation, and expired records are removed by routine cleanup.

If you join the community, you subscribe to our weekly newsletter: we keep your email address, the language you chose, the page you joined from, when you subscribed and which issues you were sent, and send you a welcome email. Every issue has a link that unsubscribes you at once. If you write to us through the contact form, your name, email address and message are sent to our mailbox so we can reply.

To stop automated abuse, the website counts how often each internet (IP) address sends a form. The address is held only in the server's memory and is not saved to a database.

When you use Quanta we keep your account and sign-in details, your chats, the files you upload, the BOQs and documents it produces, what you ask it to remember, your usage, your payments, the emails we send you and the share links you create.

On the Free plan nothing you upload is kept: a file you attach in a chat is read for that conversation, then deleted with its text within a day. On Plus and Pro your files stay until you remove them.

We use them to provide the service to you, to bill you and apply your plan's limits, and to keep the service secure. We do not sell your data.

We use service providers for AI models, hosting and databases, web search and sending email. Each receives only what its part of the work needs.

Quanta uses AI models run by two outside providers: Anthropic (Claude) writes its chat answers, and Google runs its price searches. Anthropic processes your chats, and the files and details you send with them, only to write those answers; Google receives only the price searches Quanta makes. Both may process data outside Egypt.

Payments are handled by Paddle.com, our reseller and Merchant of Record. Paddle collects your billing details and card number to process the payment, under its own privacy notice, and tells us only what we need to run your subscription, such as your plan, its status and your billing email. We never see or store card numbers.

A share link shows only the content you chose and its exports. You can set it to expire or revoke it at any time, and you can see how many times it was viewed.

You can view, edit, delete or turn off what Quanta remembers about you; a deletion applies from the next message. Our team's tools do not show your content.

We send marketing email only if you agreed to it, for example by joining the community, which subscribes you to our weekly newsletter. To stop it at any time, use the unsubscribe link in any issue, reply to any of our messages or write to us at hello@qsmind.app.

Account data stays for as long as you have the account. When you delete content or your account, it disappears at once and is removed for good after 30 days.

A sign-in session ends when you sign out, or after 30 days at most. Emails we send are kept for 90 days. Payment records are kept separately, for as long as accounting and tax law requires.

Community sign-ups are kept until you ask us to remove them; unsubscribing stops the newsletter and keeps a note that you left, so we never write again. Contact-form messages stay in our mailbox for as long as we need them to answer you.

You can ask to see, correct, export or delete your data, or object to how we use it. To do any of this, write to hello@qsmind.app from the address you use with us.

The company website remembers the language of the last page you opened in one small cookie (lang, holding only ar or en) for up to a year, so an address without a language opens in the one you chose. It is set for every visitor, holds nothing else and is never sent to anyone else.

When you choose to sign in on the company website or Market prices, we use essential, host-only cookies: a sign-in flow cookie lasting 10 minutes and a session cookie lasting up to 30 days. The account service keeps its own separate sign-in cookie. Public pages can be read without signing in. We use no analytics or advertising cookies.

Quanta uses a cookie to keep you signed in, which it cannot work without, and remembers choices such as language and theme in your browser. It uses no analytics or advertising cookies. Clearing your cookies signs you out of Quanta, and you can change the language and theme at any time from their controls.

Everything travels over encrypted connections. Sign-in sessions expire on their own, and card numbers never reach us.

QS Mind's products are made for professionals and are not meant for children.

We may update this policy. The date at the top shows the latest version. If the Arabic and English versions differ, the Arabic version applies.

Email hello@qsmind.app.