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Mobile appsMedium1 to 2 weekendsUnder $100Mobile app

Catch Log

Anglers log catches with photo, spot, bait and weather to find what works.

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The idea

Anglers want to remember which spot, lure and conditions worked. Catch Log records each catch with a photo, private location pin, bait and conditions pulled in automatically. Over time it shows patterns by spot and season.

Who it is for
Weekend freshwater and shore anglers
How it makes money
Subscription for stats and unlimited spots
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 Catch Log. Start with login and a Log Catch screen with photo, species, length, weight, bait or lure, and the current GPS location saved as a private spot.

PROMPT 2 OF 3

When saving, fetch weather at that time from a free weather API (temperature, wind, pressure, cloud cover) and store it with the catch. Add a Spots map with pins and a list of catches per spot, plus filters by species and bait.

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PROMPT 3 OF 3

Add a stats view showing best bait and best time of day per spot, a share catch card that hides the exact location, and a subscription for unlimited spots.

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