关于Smart Invoice - Free invoice builder
创建简单的发票,随时随地估算并从后端管理它们
Create beautiful and simple invoices and estimates on the go and manage them from the back-end.
Manage unlimited number of items, clients, invoices and estimates.
Features
Create and manage unlimited items
Create and manage unlimited clients
Create and manage unlimited estimates
Create and manage unlimited invoices
Convert estimates to invoices
Download invoices and estimates as PDF’s
Email invoices and estimates straight to clients
Supporting all currencies
Admob integrated. Supporting banners and interstitial ads
Easy translation for mobile and backend
PHP back-end with MySQL using Codeigniter
Google’s HTTP client Volley
http://invoice.blivetech.in
you can create able to get invoice from this website also