For developers

AI proposals & invoices for developers & freelancers

Scope the build, price the milestones, send it. Propella writes the proposal from a short brief so you can get back to shipping code.

Break work into phases with durations and amounts — clients see exactly what they're paying for.

Accepted proposal converts to an invoice in one click; get paid via Stripe Checkout.

Your best proposal becomes your template — consistent scope and terms every time.

How Propella works for developers

1Describe the project in two lines (e.g. "API + auth build · Milestone 1: schema & endpoints · Milestone 2: integration & QA").

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.