EI Classic is a legacy version of the Easy Invoice app, designed specifically for customers who prefer to stick with the classic version. This app is provided by Marla International Limited and is available for free on the iPhone platform.

With EI Classic, users can enjoy the familiarity and simplicity of the classic Easy Invoice interface. While the redesigned EasyInvoice is also available, EI Classic caters to the needs of those who prefer the classic version.

This app is categorized under Business & Productivity, and it aims to provide a convenient and efficient way for users to manage their invoices. Whether you're a small business owner or a freelancer, EI Classic offers essential features to help you generate, track, and manage your invoices effectively.

Overall, EI Classic is a reliable choice for users who value the classic version of Easy Invoice and want to continue using it on their iPhones.