Insight&myung LLC

Jinho Myung’s journey into the tech world proves that it’s never too late to chart a brand-new course.

Originally from South Korea, Jinho arrived in the United States in 2013 at the age of 29. At the time, his educational background wasn't in computer science—he had majored in a field unrelated to coding.

But Jinho loved a challenge, and he started teaching himself to code from scratch. Wanting to learn it more deeply, in 2019 he made the bold decision to quit his job and joined a coding bootcamp—and he has never stopped studying on his own since.

His hard work paid off, and after the bootcamp ended he landed a full-time role as a software engineer in the medical device field. But Jinho’s entrepreneurial drive didn't stop there.

In 2023, Jinho and his wife welcomed their second child. Inspired by his growing family and the desire to build long-term financial security, Jinho decided to start a digital business during his off-hours.

He launched a blog in 2023 and officially established his business, Insight&myung LLC, in February 2024.

The name perfectly reflected his vision: Jinho felt like a consultant providing valuable insights, combined with his own last name, "myung". He began building mobile apps in August 2024, coding late into the night after his day job and family responsibilities were wrapped up.

Initially, Jinho built apps to solve his own daily inconveniences. As his catalog grew, he committed to a free, ad-supported model to keep his creations accessible to everyone.

To support his business, Jinho integrated Google AdMob around February 2025. Today, his app revenue is overwhelmingly derived from AdMob ads. Ad revenue acts as a crucial engine that funds his server costs and marketing campaigns, allowing him to grow his audience without charging users upfront.

In a world where AI tools make it easier for competitor copies to crop up, Jinho focuses on staying ahead of the curve. He is a self-described power user of Gemini Pro to help brainstorm and write code, and relies heavily on Google Firebase to monitor his app performance and handle user analytics.

Jinho's disciplined routine of coding late into the night has yielded staggering results. Today, he manages over 50 apps across his developer accounts and has recently expanded into developing iOS versions.

In March of 2026, Jinho reached a massive milestone: in that single month alone, his business generated the exact same amount of profit as he did during the entire previous year of 2025.

"I believe building apps is like compounding," Jinho reflects. "Every day new users download my apps, and next year will be even better.”

Managing a thriving side business alongside a full-time engineering job and a busy family life is a massive balancing act. Jinho often works on his apps until 5 AM, sleeping only a few hours before starting his day job at 9 AM.

"This life is not easy, but I just started," Jinho says.

His ultimate short-term goal is to reach a portfolio of 100 apps, while his long-term milestone is to generate at least twice his current day-job salary from AdMob revenue before considering taking his indie hacking full-time.

For Jinho, the most rewarding aspect of his journey is seeing users enjoy his work and feeling like an incredibly productive developer.

His primary advice for other aspiring developers and entrepreneurs is beautifully simple and urgent: "Start. Do not think. Just start".

Jinho knows how easy it is to get stuck in the planning phase, but he believes the only way to succeed is to take the leap.

"Start and continue to add more... and see what users want," Jinho advises. "Just do it.”