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Mobile appsMedium1 to 2 weekendsUnder $100Mobile app

Tab Split

Snap a restaurant receipt, tap who had what, and see what each friend owes.

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The idea

Splitting a group dinner bill is slow and awkward. Take a photo of the receipt, AI reads the line items, each person taps their items, and tax and tip are shared fairly. Everyone gets a clear total to settle up however they like.

Who it is for
Friend groups and coworkers who eat out together
How it makes money
Free with a paid tier for saved groups
Suggested stack
Expo (React Native), Supabase for login and data
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 an Expo app called Tab Split. Start with a New Bill screen to take or pick a receipt photo, and a People screen to add names for the people at the table.

PROMPT 2 OF 3

Send the photo to an AI vision model and return JSON with line items (name, quantity, price), subtotal, tax and total. Show items as a list where each can be assigned to one or more people with shared items split evenly. Add a tip percent and compute each person share including proportional tax and tip.

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PROMPT 3 OF 3

Add a share button that creates a summary image and text of who owes what, saved groups for regular dinners, and a paid tier via in app purchase that keeps unlimited bill history.

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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 Tab SplitEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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