InvoiceKoi

InvoiceKoi helps tradespeople create invoices, estimates and receipts on Android. Core drafting, saved clients, rates and totals work offline. AI voice drafts, receipt and document reading, cloud backup and payment collection need internet. Drafting is free. Issuing, sharing or printing new numbered documents requires a subscription: US$9.99/week or US$99.99/year, with local pricing and eligible trials shown in Google Play. Existing records remain accessible after expiry. A separate free browser invoice generator needs no account and adds no watermark. Built by Fang Ventures Private Limited in Singapore.