My extremely personal Vibe Code diary

Hello, fellow Vibe Coders. I am a new Vibe Coder who left the handmade shoe industry in Korea to embark on a startup journey. I’d like to share a record of the past two months or so.

As I am Korean, I am using Google Translate to generate the English text for each paragraph; I ask for your understanding.

1. In the two-plus months since I started using Claude Code, I have built nine simple apps; I released three of them on iOS and five on Android. This count includes projects I abandoned midway because they became too difficult.

2. The total number of downloads is just over 200, and I’ve generated one paid subscription and $15 in AdMob revenue. These are the results from June through July. I hope this post will serve as a record of my early, modest beginnings.

3. Making the app was easier than I thought. (However, I have great respect for developers. In fact, depth is more important than how quickly it is made; if you miss this, it cannot be called a proper app. I already know this from my 10 years of experience handcrafting dress shoes.)

On a personal note, planning and developing apps is a process of transforming delightful ideas into tangible, real-world assets. While I truly enjoy this work, making a living from it was a different challenge altogether—so much so that I began taking on part-time jobs at the age of 40. That is fine by me, but because I love this work, I aspire to transition into a professional career. In this context, being a "professional" means reaching a level where I can generate sufficient income from this field.

When I first started learning about ASO and app marketing, I was struck by their similarity to SEO: because everyone has access to the same information, the playing field eventually levels out. Anyone can use effective keywords, so without targeting a specific vertical, you are bound to fall behind. I call this the "entry phase." Like you, I successfully navigated this stage. However, the next challenge awaits: conversion.

Anyone with experience in e-commerce knows that the 4P strategy is used to boost conversions. Alternatively, one can keep the conversion rate constant (mine, for instance, is a very average 5%)and focus on maximizing impressions. External advertising and social media activities are examples of ways to maximize impressions.

I have recently begun testing in this area. You are likely familiar with terms like PoC, MVP, and PMF. Personally, I used to find these concepts rather vague and abstract. While some might be lucky enough to find the right fit quickly, others might not; skill certainly plays a role, but luck cannot be discounted either. With this perspective in mind, I am exploring ways to maximize exposure.

I viewed short-form platforms like YouTube and TikTok—which dominate my daily life—as virtually the only channels where content is accessible to everyone. That is why I created a "YouTube Lab." I will not mention or discuss my specific YouTube account here, as doing so would compromise my authenticity. I use a selfie and a sample of my own Korean voice to create a "chroma-key" narration layer that makes it appear as though I am actually speaking. Over this, I use Veo3(an open-source video generator)to produce visuals that dramatize the specific problem I aimed to address when developing this app. The goal is to foster viewer empathy; if viewers resonate with the content, they are more likely to keep watching. Finally, I record footage of the app's actual UI and edit it all together. That is the entire process.

Now, let’s get to the main point. I recently succeeded in automating this process, which has enabled rapid video production and simultaneous uploads across multiple platforms. In fact, downloads have grown by over 10%(a remarkable achievement accomplished just one week after I started making videos, acting like a breath of fresh air for my previously stagnant app portfolio)and I am now focusing on improving video quality. The problem this process addresses is that indie developers (who, like me, may fear appearing on camera or struggle with public speaking) can promote their apps without significant cost. It also allows them to quickly gauge, through video performance, whether consumers resonate with the problems they’ve identified and the solutions they’ve proposed. If this post draws interest, I’ll be back. I’m rooting for your work. From Seoul.