About 3 min read









A used car dealer who couldn't code built with AI in 196 days a car sales platform where inventory videos flow TikTok-style
Use "Request" to ask the creator to set up tip receiving.
About 3 min read
When was the last time I contacted my parents' house? A reminder that shows at a glance "people who need to be contacted soon" based on each person's desired contact frequency.

An App That Eliminates "I Don't Know What to Ask ChatGPT" Choose from 1,033 prompt templates, fill in the dropdowns, and get professional-quality questions in 30 seconds. One-tap paste to ChatGPT / Gemini / Claude / Perplexity / Genspark. --- Why I Built It I wanted people to use AI as a tool for solving small daily frustrations, and as a prescription for reclaiming lost time. Proofreading English emails, deciding tonight's dinner, praising children, getting a second opinion on investments. People are losing a little time and energy every day on small tasks that AI should be able to handle instantly. --- Frustrations with Existing AI Prompt Apps It's incredibly tedious to find a prompt you like. Read the prompt → rewrite it for yourself → copy and paste—most people drop out at these 3 steps. In the end, people just throw vague requests like "make this sound nice" and cry over mediocre answers. This App's Approach Just follow the basic template and tap to select the parts that differ for each user as "variables". No rewriting needed—you get a prompt perfectly optimized for your situation. For example, if you want to know "how to praise my child": → Tap the age (3 years old / early elementary / middle school...) → Tap the scene (extracurricular activities / studying / chores...) → Tap your parenting style (praise to encourage growth / strict approach...) That's it—you get a prompt that fits your situation perfectly. --- What I'm Aiming For Ultimately, I want this to become a "beginner's guide" to AI chat apps. People who installed ChatGPT but never figured out how to use it can use this app as a stepping stone to incorporate AI into their daily lives. That's the bridge-building role I'm creating this for. --- Specs Number of prompts: 1,033 (17 categories / 148 subcategories) Work / cooking / health / investing / parenting / learning / job hunting / SNS / fortune telling, etc. Login bonuses / streaks / referral codes / 14-day free premium Freemium: 51 prompts available for free Tech Stack Expo (React Native) + TypeScript Supabase (analytics / rankings / referral code management) RevenueCat (subscription management) expo-notifications (streak warnings / update reminders via local notifications) --- Since this is an indie project, all feedback, bug reports, and feature requests come through loud and clear. If it sounds like your thing, definitely give it a try.
This is a car sales and purchase web service created from scratch by a real used car dealer in Osaki City, Miyagi Prefecture using Claude Code and Codex over 196 days.
All development records have been kept with actual measurements (1.96 million lines of conversation logs with AI, 41GB, called AI a "liar" 220 times). Details are written in the note article "How an idol created a massive platform through vibe coding."
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