For writers

AI proposals & invoices for writers & copywriters

Pitch the project, set the rate, send a proposal that reads as well as your copy — then invoice and get paid, all in one place.

Executive summary, scope and a 'why work together' section written in a professional, warm tone.

Articles, pages, retainers — priced line by line so clients approve faster.

Send an invoice with a pay link the moment the project is accepted.

How Propella works for writers

1Describe the project in two lines (e.g. "Website copy — 7 pages · Brand voice guide · 2 rounds of revisions").

2Propella's AI writes a full proposal — summary, scope, timeline and pricing — in seconds.

3Send it, get it accepted, and convert it to a Stripe-paid invoice.

3 free proposals every month. No card required.