Estimate Invoice Maker is a free iPhone application developed by B TO J PTY LTD, falling under the Business & Productivity category. The program allows users to create and send professional estimates instantaneously, converting them into invoices with a single tap. Key features include the ability to customize titles and subtitles, support for multi-currencies, offline functionality, and integration with contacts. Users can preview estimates before sending them as PDFs, print wirelessly, and utilize professionally designed templates.

Estimate Invoice Maker offers professional features like adding business registration details, tax setup, discounts, payment terms, and the option to include a company logo. The mobility aspect allows users to send estimates directly from their iPhone or iPad, making it a convenient on-the-go solution for managing estimates and invoices.