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Mobile appsEasy1 weekendUnder $100Mobile appWeekend build

Tea Steep Timer

Save your favorite teas with their steep times and start a timer in one tap.

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The idea

Tea drinkers keep a cupboard of loose teas that each need a different time and water temperature. This app stores each tea with its settings and runs a timer with a clear alert, including repeat steeps that get a little longer each round.

Who it is for
Loose leaf tea drinkers
How it makes money
One time unlock for extra features
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 Tea Steep Timer. Start with a list of teas where the user saves name, type, water temperature, grams per cup and steep seconds.

PROMPT 2 OF 3

Tapping a tea starts a large countdown timer that keeps working in the background and sends a local notification at the end. Add a multi steep option where each next steep adds a set number of seconds.

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PROMPT 3 OF 3

Add tasting notes per tea with a star rating, a Running Low flag with a shopping list screen, and a one time purchase that unlocks custom themes and a home screen widget.

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