The Vibe Stack: Build, Market, and Scale with AI

The solo founder's unfair advantage in 2025.

Welcome to AI iOS App Builders - a weekly newsletter sharing tips, guides, and solutions to help you build iOS apps with no coding experience. Our goal is to make you take the leap and start building and market apps yourself!

THIS WEEK’S STORY

There’s a new stack in town.

Forget the old playbook. AI changed the rules. You don’t need a dev team, a design squad, or a growth hacker.

You need vibe, velocity, and the right tools.

This is vibe marketing and vibe coding.

It’s the art of shipping fast, making it feel good, and letting the algorithm (and your gut) guide the way.

Here’s what that looks like:

🚫 You don’t write content — you remix it.
Find what’s already working. Reframe it. Repackage it.
Use GPT-4o or Claude to turn it into threads, landing pages, or swipeable video scripts.

🚫 You don’t build full apps — you prototype vibes.
Use Replit or Bolt to sketch something real in a day. Doesn’t have to be polished. Just has to make people curious.

🚫 You don’t guess what works — you test like a mad scientist.
10 hooks a day. Minimum. Use N8N, Gumloop, or ScraperAPI to scrape winning content. Use ChatGPT Vision to break down high-converting pages.

🚫 You don’t market — you vibe.
Talk like a person. Not a funnel.
Make content that feels native to your feed, not like an ad.

Then you automate the engine:

  • Autogenerated microsites. Cold outreach on autopilot.

  • Customer milestone tweets.

  • Referral flywheels. AI-native lead magnets.

  • Every build feeds back into growth.

You’re not just building an app.
You’re building a distribution machine disguised as software.

This is the solo founder edge in 2025:

Prompt smart. Ship fast. Market by instinct. Automate the rest.

It’s not about doing more.
It’s about catching the right vibe — and letting AI take it to scale.

HEADLINES

🧠 OpenAI Just Dropped GPT-0.3 — And It’s a Game-Changer

No more model roulette.

Before, you had to choose: “Should I use GPT-4o for tools? Or o1 for raw brainpower?”

Now? You don’t have to pick. GPT-o3 is both.

It’s tool-savvy, sharp as hell, and smooth to chat with.
Whether you're writing code, rewriting copy, brainstorming startup ideas, or just vibing with your AI co-founder — GPT-o3 shows up and delivers.

It feels like OpenAI finally made a model that gets you — fast, flexible, and ready to build.

Next time you're stuck choosing between smart and useful — don’t.

Just use GPT-o3.

It’s fast. It’s fun. It might be your new favorite teammate.

Check this out:

THIS WEEK’S TIP

The Google-Backed Prompting Formula + Best Models to Use

Want to get better results from LLMs?
Use this dead-simple framework — backed by Google and battle-tested by builders:

âś… The Prompting Rules:

1. Be clear. Vague prompts = vague answers.

2. Be specific. Want a certain style or tone? Show examples.

3. Iterate. Great prompts aren’t written — they’re rewritten.

4. Add context. Treat the AI like your smartest intern. Give it goals, background, and constraints.

đź§  Know Your Prompt Types:

Zero-shot → no examples
Few-shot → include a few examples
Chain-of-thought → guide it step by step

🔥 The Winning Stack:

🧠 Gemini 2.5 → for coding
✍️ GPT-4o → for PRDs, planning docs, and knowledge bases

Use both. Prompt well.
And suddenly, you’ve got two AI co-founders — no hiring needed.

QUICK HITS

  • Replit Adds AI Vibe Templates: Replit now offers AI-generated templates that match your coding style for faster prototyping. (TechCrunch)

    OpenAI Drops Vibe Marketing Toolkit: Create dynamic, personalized campaigns with GPT-4.5’s new marketing toolset. (The Verge)

    Bubble Launches AI Workflow Builder: Turn plain text into app logic with Bubble’s new AI-powered builder. (Forbes)

    Copilot Adds Team Vibe Coding: GitHub Copilot lets teams define coding “vibes” for consistent AI-generated code. (ZDNet)

    Gemini Powers AI User Insights in Low-Code Tools: Google’s Gemini now delivers real-time user analytics in tools like AppSheet and Glide. (CNBC)

And That is all for this week!

See you next week!

Filippo

Filippo Pietrantonio

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