Privacy & Terms

What we collect

When you create an account we store your username, optional display name, optional email address, and a hashed password (PBKDF2-SHA256 — we never store plaintext passwords). As you use the flashcard system we store your review history and spaced-repetition state for each card. If you contact us, we store your message.

What we don't do

We do not sell your data. We do not share it with third parties except as described below. We do not run advertising.

Third-party services

• Stripe — handles all payment processing. We pass your user ID to Stripe when you start a subscription; Stripe stores your payment details. We never see or store card numbers. Stripe's privacy policy is at stripe.com/privacy.
• Google reCAPTCHA v3 — used on the sign-up and contact forms to detect bots. reCAPTCHA runs invisibly and sends browser signals to Google. Google's privacy policy applies: policies.google.com/privacy.
• Cloudflare — hosts the site and processes all traffic. Cloudflare may log IP addresses and request metadata per their standard infrastructure practices.

Cookies & sessions

We use a single HTTP-only session cookie (hackgreek_session) to keep you signed in. It expires after 30 days. We don't use tracking cookies or analytics cookies.

Data retention & deletion

Your account and all associated data is retained as long as your account exists. To delete your account and all data, contact us via the Contact page.

Contact

Privacy questions? Use the Contact page.

Using HackGreek

HackGreek is a tool for studying biblical Greek. You may use it for personal, educational, and non-commercial purposes. Don't attempt to scrape, reverse-engineer, or abuse the service.

Subscriptions & payments

Paid subscriptions renew monthly via Stripe. You can cancel at any time from your profile — your access continues until the end of the current billing period. Payments are not refunded. If you believe there was a billing error, contact us and we'll look into it.

Free trial

New subscribers receive a 7-day free trial. If you cancel before the trial ends you will not be charged. If you have already used a free trial, another trial will not be granted on the same account.

Accounts

You are responsible for keeping your password secure. Don't share your account. We reserve the right to suspend accounts that abuse the service.

Content

The Greek New Testament text (SBLGNT) is used under its open license. The English translation (OEB) is in the public domain. Lexicon data is sourced from openly licensed academic resources. See the Sources page for full attribution.

Warranty & liability

HackGreek is provided as-is. We make no warranties about accuracy or uptime. We are not liable for any damages arising from use of the service.