Smart Invoice is an invoicing app that allows users to create, estimate, bill, and email invoices to clients from their phone or tablet. The app offers a range of customization options, including the ability to set payment dates, assign custom invoice numbers, and customize products and services. Users can also add discounts, taxes, and notes to their invoices, as well as attach their company logo. In addition, the app allows users to draft invoices to work on later, view and manage their invoice history, and save PDF copies for future accounting purposes. Smart Invoice also offers support for all types of currency and date formats, and is available in six languages.

In addition to invoicing, Smart Invoice also offers features for creating estimates and quotes. Users can easily customize their estimates and send them to clients, and can convert estimates into invoices with just one click. The app also includes bonus features such as the ability to save client information, make phone calls and send text messages from within the app, and share invoices and estimates as attachments on messaging apps like Whatsapp and Viber.

Smart Invoice also includes a database feature that allows users to back up their invoices, clients, and products at any point in time, and restore any of their backed up data. The app is available for use online or offline, and users can print invoices and receipts from anywhere with Google Cloud Printing. If you like the app, the developers encourage you to give them a good rating.

Overall, Smart Invoice is a comprehensive invoicing app that offers a range of customization options and features for creating estimates and quotes. The app is available in multiple languages and supports all types of currency and date formats. With its database feature and ability to work offline, Smart Invoice is a useful tool for small business owners and freelancers who need to manage their invoicing and accounting on the go.