Privacy Policy

This Privacy Policy explains how GrindSZN ("we", "us", "the app") collects, uses, and protects information when you use our training application. GrindSZN is designed for young athletes whose accounts are created and managed by a parent or guardian. We take that responsibility seriously.

Who Controls an Account

Athletes do not register themselves, at any age. A parent or legal guardian creates the account, accepts this policy on the athlete's behalf, and can review or delete the athlete's data at any time. Celebratory and summary emails about a minor athlete are sent to the guardian, not to the athlete.

Information We Collect

• Account details — name, email address, and role (athlete or guardian) needed to sign in and link family accounts.
• Training activity — sessions, drills, personal bests, streaks, goals, and badges you record while using the app.
• Communication preferences — which optional emails a guardian chooses to receive.
• Billing details — if a guardian subscribes, Stripe processes the payment and holds the card. We keep only what we need to know which plan an account is on: an identifier for the Stripe customer and subscription, the plan, its status, and the renewal date. We never receive or store card numbers.
• Technical data — basic device and log information used to keep the service reliable and secure.

How We Use Information

• To provide guided training, track progress, and award achievements.
• To send transactional and (optional) summary emails to guardians.
• To secure accounts and prevent abuse of the service.
• To improve features based on how the app is used.

Newsletter

Anyone can sign up for our newsletter from the form at the bottom of this site. It is meant for parents, guardians and coaches. We collect only the email address you enter. We send it a link to confirm, and we send no newsletter until that link is clicked. Newsletters are sent from Listmonk, which we run on our own server, and delivered by Amazon SES, our email delivery provider, which receives your address to deliver them. We do not share it with anyone for their own marketing. Every newsletter carries an unsubscribe link, and unsubscribing takes effect immediately. If an address belongs to an athlete account, we do not add it to the newsletter.

What We Do Not Do

We do not sell personal information. We do not show third-party advertising to athletes, and we do not use a minor's data to build advertising profiles. We collect only what the app needs to function.

Sharing

We share data only with service providers that help us operate the app, and only as needed to run the service: email delivery, cloud hosting, and Stripe for payments. Stripe receives the subscribing guardian's email address and payment details, and handles the card itself; it does not receive an athlete's training data. We may disclose information if required by law.

Data Retention & Deletion

We keep account and training data for as long as the account is active. A guardian may request access to, correction of, or deletion of an athlete's data at any time by contacting us. We delete data within a reasonable period after an account is closed.

Your Choices

Guardians can update notification preferences in Settings and can close an account at any time. To exercise any privacy right, contact us using the details below.

Contact

Questions about this policy or a request regarding your data can be sent to privacy@grindszn.app.