Offline Android invoicing for tradespeople with AI-assisted voice drafts and receipt reading
InvoiceKoi helps tradespeople prepare invoices, estimates and receipts on Android. Core drafting, saved clients, rates, records and totals work offline without an account. AI voice drafts and receipt reading, cloud backup, purchase verification 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 prices and eligible offers shown in Google Play. Existing records remain available after expiry for viewing and export, resending issued invoices and collecting outstanding payments. The website also offers a separate free browser invoice generator with no account or watermark. Built by Fang Ventures Private Limited in Singapore.