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B2B toolsEasy1 weekendUnder $100Web appWeekend build

Meeting Cost Timer

A live running cost counter for meetings based on who is in the room.

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The idea

Before a meeting starts, pick attendees by role and the timer shows cost ticking up in real time. Teams see what a long status meeting really costs. It is a light nudge toward shorter, better meetings.

Who it is for
Managers at small and mid-size companies
How it makes money
Free timer, paid team plan with history
Suggested stack
Next.js, MySQL, Tailwind, hosted on a small VPS
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 Meeting Cost Timer. A team admin sets up roles with an hourly cost each (for example engineer, designer, manager). The main screen lets anyone pick how many people of each role are attending and press start.

PROMPT 2 OF 3

Show a large running cost counter that updates every second, elapsed time, and cost per minute. Add a stop button that saves the meeting with name, duration, attendees by role and total cost.

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PROMPT 3 OF 3

Add a team history dashboard with total meeting cost per week and the ten most expensive recurring meetings by name. Add a Stripe subscription for teams that want saved history and a weekly email summary.

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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 Meeting Cost TimerEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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