KANJIN (kanjin.app) Reviews & Product Details

KANJIN is a free digital stamp card and back office for small walk-in shops: cafes, bakeries, bubble tea and dessert counters, barbers, salons, nail studios and small retail. Customers collect stamps with just their phone number. There is no app to download and no paper card to lose. Staff type the number, or the customer scans the counter poster. On Square? Connect it free, and customers on your card are stamped when they pay. Free forever, for any number of customers: - Digital stamp card and printable counter QR poster - Customer list showing your regulars and who is slipping away, based on your trade's visit cycle - 20 Google review requests a month by email, to customers who said yes, plus a review button on every customer's card - One email a month to up to 150 regulars - Sales & costs: daily takings, supplier invoices, shift notes and printable reports - Break-even, profit-by-item and lost-revenue calculators - Unlimited staff logins and a PIN-locked Counter Mode - Free Square connection, and your whole customer list as a CSV download any time The paid plan (US$39 a month per location) adds the marketing: win-back, slow-day and rainy-day emails, welcome and birthday treats, bring-a-friend stamps, review requests with no monthly cap, AI review replies, and local Instagram and YouTube creator discovery with invitations written for you. Languages: English, Traditional Chinese, Japanese, Spanish, French. Web app: works in any browser on phone, tablet or computer.