Quadru connects your Shopify store with Square. Browse your Square Item Library in the Shopify admin, compare catalogs side by side, and match products by SKU. Import Square items singly or in bulk. Get SKU suggestions in your store's own naming style, in-app or through Sidekick. Link one Shopify location with one Square location, choose which side wins when counts disagree, and turn on two-way inventory sync. Sync moves counts only. Products, prices, and images are never changed automatically.

• Two-way inventory sync between one Shopify location and one Square location
• You choose the primary source: Shopify or Square wins when counts disagree
• Browse your Square Item Library, compare by SKU, and import items as drafts
• SKU suggestions that follow your store's naming style, in-app or via Sidekick
• Syncs inventory counts only. Never adds, edits, or removes products

RiffRoff runs referral programs inside Shopify admin. Customers share links; eligible friends get expiring, single-use first-order discounts. After the first paid order clears the merchant’s hold, RiffRoff issues one advocate store-credit reward. Merchants set discounts, rewards, minimums, expiry, hold, and review thresholds. Merchants can review referred orders, reward status, and payout exceptions in one place. Refunds reverse unearned rewards and update referral records.

• Create private referral links and verified, single-use friend offers
• Reward advocates with store credit after a configurable hold
• Review referrals, reversals, and payout exceptions in Shopify admin