How a Young Founder Scaled a Gamified App to $14K/Month in Just 4 Months

Imagine a young founder Even launching a mobile app and scaling it to $14,000 per month in only a few months—all without a massive existing audience or expensive paid ads.

That is exactly what a young entrepreneur named Evan achieved with his app, Locked. Featured on a recent episode of Starter Story, Evan completely pulled back the curtain on how he built and marketed his business. Whether you are an aspiring app developer or just love a great hustle story, here are the biggest takeaways from his journey.

🎮 The Product: Making Habit Tracking Fun

Evan noticed that a friend was struggling to stay on task, which sparked a brilliant idea. Instead of building just another boring habit tracker, Evan built Locked—a gamified health and fitness app.

When users onboard, they choose a character, earn XP for completing tasks, unlock badges, and compete on leaderboards. It even features a highly unique "motivational screen" where users are essentially yelled at by an influencer to stop living in comfort.

The Business Model: The app charges $40 per year or $7 per week. However, Evan uses a clever monetization trick: if a user tries to exit the main paywall, they are hit with a "transaction abandoned" paywall offering a discounted rate of just $20 per year.

💻 The Tech Stack: Built in 1.5 Months

Thanks to the rise of AI tools, building an app is faster than ever. Evan and his team went from idea to the App Store in just a month and a half.

Here is exactly how they built it:

• Design: Built from scratch in Figma over the course of two weeks.

• Domain

• Development: Coded in Xcode using YouTube tutorials and Claude Code to help them program the app from start to finish.

• Database: Supabase, which they use for free.

• Monetization Testing: Superwall (which takes 1% of earnings) to A/B test their paywalls.

📈 The Growth Engine: A 5-Step Influencer Playbook

Evan’s secret weapon for getting thousands of users is influencer marketing via organic short-form content on TikTok, Instagram, and YouTube Shorts. Because influencers already have trust with their audiences, an app recommendation feels much more authentic than a traditional ad.

Evan's golden rule is pure math: You must close creators at a CPM (Cost Per Mille/1,000 views) that is lower than your app's RPM (Revenue Per Mille). Because Locked has an RPM of around $2 to $3, Evan aims to pay influencers a CPM of $1.00 to $1.50.

Here is the exact step-by-step playbook Evan uses to book creators:

1. Find Niche Creators: Scroll through TikTok or Instagram to find creators in your space. Send them a direct message that simply starts with: "Paid promo?".

2. Get Them on a Call: Move the conversation off the DMs to negotiate.

3. Close a Profitable Deal: Ensure the math works in your favor by keeping the CPM below your RPM.

4. Structure the Deal: Evan recommends using a "Minimum View Clause" (MVC) deal. For example, he will pay a creator $800 with a 600,000 minimum view guarantee. If the video flops, the creator has to post more videos until the minimum view count is reached.

5. Launch the Partnership: Send a contract and the video requirements. Evan strictly requires creators to show the app within the first 15 seconds of the video. Then, give them a one-week deadline to post.

This strategy works. One video from an influencer named Jeremiah Jones generated 1 million cross-platform views, resulting in roughly 1,800 downloads and $3,000 in revenue—all from an $800 investment.

💡 The Mindset: Ignore the Hivemind

While hitting $14K MRR in four months sounds like an "overnight success," Evan has been experimenting with businesses since he was 9 years old. He started by building Roblox games, and went on to fail at dropshipping, reselling, and vending machines. He eventually pivoted to the app space, building an app called Problem Pal that peaked at $2,000/month before he sold it.

When asked what advice he would give to others, Evan was blunt: Worry less about school and put more time into building a business. He believes too many people are "hiveminded" and blindly follow the path of getting good grades to get a stable job without ever questioning it.

As the hosts of Starter Story pointed out, we are living in a new world. You don't need permission to build anymore—you just need an idea, some AI coding tools, and the drive to put it out into the world.