Need a free Plugin for Invoices and Quotations (Estimates/Proposals)

Good day All,

I have been searching the entire plugin directory for a free and very little plugin that can do the following:
– Manage Clients
– Generate Invoices
– Generate Quotations / Estimates / Proposals.

I would love something that is been maintained, reliable and very lightweight.

Not a plugin that was last update 5 years ago ??

Thanks in advance peeps!