Privacy Policy

TierUp is developed and operated by GrünerBaum GmbH, Vorstädter Str. 32, 55276 Oppenheim, Germany. For any privacy question, contact hello@gbdesign.art.

TierUp lets Shopify merchants configure quantity-tier discounts, bundles, BOGO offers and free gifts. Discounts are applied by a Shopify Function at checkout; the storefront widgets read the merchant's discount configuration from shop metafields.

We deliberately process the minimum data required to provide the service to merchants:

• Shop data:the shop's myshopify.com domain, an API access token, and the discount configuration the merchant creates in the app.
• Order-level aggregates: for the analytics dashboard we store order totals, currency, line-item counts and discount amounts per order, keyed by shop domain and Shopify order ID.

We never store customer names, e-mail addresses, postal addresses, phone numbers, IP addresses or any other personal customer fields. Analytics are aggregate and shop-level by design.

All app data is stored on Cloudflare infrastructure (Workers KV and D1), encrypted at rest and in transit, with EU-region placement where available. A data-processing agreement pursuant to Art. 28 GDPR is in place with Cloudflare, Inc., including the EU Standard Contractual Clauses for third-country transfers.

When a merchant uninstalls TierUp, the shop's session tokens are deleted immediately. We honour Shopify's mandatory GDPR webhooks: on a customers/data_request we can confirm that no personal customer data is held; on customers/redact and shop/redact all data associated with the shop is deleted within 30 days.

Processing is carried out to perform the contract with the merchant (Art. 6 (1)(b) GDPR) and on the basis of our legitimate interest in providing secure, reliable analytics without personal data (Art. 6 (1)(f) GDPR).

Merchants and data subjects have the rights of access, rectification, erasure, restriction, portability and objection under Chapter III GDPR, and the right to lodge a complaint with a supervisory authority. Requests can be sent to hello@gbdesign.art and are answered within 30 days.