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AI agentsMedium2 weekendsUnder $100Web and mobile

Gig Invoice

Talk through a job, get a finished invoice by text.

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The idea

Freelancers and trades record a 30 second voice note about the job. Gig Invoice turns it into a proper invoice with line items and sends a pay link.

Who it is for
Freelancers, gig workers, trades
How it makes money
Monthly subscription or a small fee per paid invoice
Suggested stack
Next.js web app plus Expo mobile app, shared Supabase backend
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web app called Gig Invoice. A user sets up their business name, logo and payment details, and adds clients.

PROMPT 2 OF 3

Add a record button. Convert the voice note to text, then use AI to create invoice line items (description, quantity, rate) for the selected client. Let the user edit before sending.

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PROMPT 3 OF 3

Send the invoice by text or email with a Stripe payment link, and mark it paid automatically when payment arrives.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Gig InvoiceEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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