The Juragan Kontrakan application is a bookkeeping application for small-scale rented and lodging business owners equipped with a payment notification when the D-3 payment is due as a reminder. The main function assists in recording tenant identity, room payments, income and expense reports.This application also helps owners in sending proof of payment to tenants via WhatsApp or contacting tenantsThe standard functions of this application are:1. Tenant Data2. Room Data ... Facilities ... Prices start per day to per year3. Transaction Data that records all payments of tenants and expenses used by the owner.4. Room Type Data.5. Owner data, including password data before making any transactions.6. DONT FORGET ... activate the notification system for this app to get notifications late payments can work just fine.