Business Implementation
4 min read

Building a $14K/Month App in 4 Months: My Journey

I built an app that hit $14K a month in just four months. Sounds unreal? Let me show you how I did it, from the tech stack to influencer marketing strategies. In today's tech world, launching an app isn't just about coding. It's smart marketing, efficient development, and a dash of hustle. Join me on my journey with the Locked app, from my development path, gamification strategies, to influencer deal negotiations. I've been burned by common pitfalls so you don't have to. If you're looking to grasp the gears of a successful launch, this is your playbook.

Modern illustration of Evan's development journey with Locked, influencer marketing strategy, revenue growth, and ASO.

I built an app that pulls in $14K a month in just four months, and I'm here to show you how. Launching an app isn't just about coding—it's a complex dance of a solid tech stack, punchy influencer marketing strategies, and continuously optimizing user experience. That's the journey I've lived with the Locked app. I started by anchoring a strong technical foundation, then layered in gamification elements to boost user engagement, and negotiated hard with influencers to amplify visibility. It wasn't all smooth sailing—I got burned more than once—but persistence paid off. If you're ready to break away from the traditional path and understand how to unlock an app's full potential, dive into this journey with me.

Building the Locked App: From Idea to Launch

I started with a clear vision for the Locked app, focusing on gamified features and a solid business model. Right from the get-go, the goal was to incorporate engaging elements to motivate users, like XP points and leaderboards. For design, I used Figma, an indispensable tool for rapid prototyping and immediate feedback. For the backend, Superbase was my choice — a robust solution with easy integration. But watch out, API integration can quickly become complex. So, I wrapped the API in Cloud Code to streamline development.

Modern minimalist illustration of Locked app development using Figma and Superbase, integrating API with Cloud Code, in deep indigo and violet.
Illustration of Locked app development with modern tools.

Next, I integrated gamification elements to boost engagement: task tracking, motivational screens, and more. Challenges were plenty, especially in early development. But that's where agility comes in. A rapid iterative cycle allowed us to solve problems as they arose.

Key elements:

  • Use of Figma for design.
  • Superbase for the backend.
  • API wrapped in Cloud Code.
  • Focus on gamification for engagement.
  • Agile approach to overcoming challenges.

Crafting a Winning Business Model

For Locked's business model, I opted for an annual subscription at $40, with a discounted offer at $20. Why? Because perceived value is crucial. This allowed me to address user pain points with unique app features. The choice between a weekly $7 and annual subscription was strategic to attract different types of users.

To maximize revenue, I analyzed CPM (Cost Per Mille) and RPM (Revenue Per Mille). It's a delicate balance but necessary to optimize revenue strategies. Based on past experiences, like with Problem Pal which peaked at $2,000 a month, I refined Locked's economic approach.

Key takeaways:

  • Annual pricing at $40 with a $20 discount.
  • Analysis of CPM and RPM to optimize revenue.
  • Learning from previous ventures to refine the model.

Influencer Marketing: A Game Changer

Influencer marketing is what really catapulted Locked's success. By collaborating with influencers, I was able to drive app downloads and visibility. I negotiated deal structures to maximize ROI, ensuring every campaign was measurable and adjustable. For example, a video campaign resulted in roughly $3,000 in revenue and 1,800 downloads, with nearly a million views.

Modern illustration of influencer marketing, highlighting key concepts like maximizing ROI and tracking performance, minimalist style.
Illustration of influencer marketing and its impact.

Avoid common pitfalls: A poor match with an influencer can harm credibility. I explored creative content strategies with influencers to ensure that the message remained authentic and engaging.

Successful strategies:

  • Collaborating with influencers for promotion.
  • Deal structures to maximize ROI.
  • Tracking metrics to adjust campaigns.
  • Innovative content strategies.

Technical Stack: Tools and Trade-offs

By integrating Superwall for in-app purchases, I was able to simplify the user experience. However, dealing with token usage required some fine-tuning. I balanced performance and cost with the chosen tech stack, and Supabase proved reliable for the backend.

Modern illustration of a tech stack featuring Superwall for in-app purchases, highlighting challenges and solutions with geometric shapes.
Illustration of Locked's tech stack.

I kept the development process lean and efficient, iterating constantly to improve reliability. However, don't overuse some features, as that could impact performance.

Key tools:

  • Superwall for in-app purchases.
  • Token management and necessary adjustments.
  • Supabase for backend reliability.
  • Lean and efficient development process.

Entrepreneurship Insights: Lessons Learned

Pursuing non-traditional career paths can be risky but rewarding. My advice? Resilience and adaptability are key. Strategic risk-taking has a direct impact on success, and continuous learning is crucial.

For aspiring entrepreneurs and app developers, I recommend focusing on building the business rather than following traditional paths like school. Experience is often the best teacher.

Practical tips:

  • Value resilience and adaptability.
  • Take strategic risks.
  • Continuous learning and iteration.
  • Advice for future entrepreneurs.

Building the Locked app was a journey packed with strategic planning and tactical execution. In just four months, I took an idea and turned it into a $14K/month operation. Here’s what worked:

  • Strategic Planning: Picking the right tools and partners was crucial. Don’t underestimate the power of a clear initial strategy.
  • Technical Execution: Diving into development with the right tech stack avoided many pitfalls. I used tools that sped up the process significantly.
  • Influencer Marketing: A well-targeted campaign boosted the app's visibility. It's a real game changer, but watch out for the costs that can quickly escalate.

Looking forward, the experience shows that persistence and smart choices are key. Once you're off the ground, the potential is massive, but staying agile is a must.

Ready to build your own app success story? Dive into your project with these insights and make it happen. I highly recommend watching the full video for a deeper understanding: YouTube Video. These are field-tested tips, not theories!

Frequently Asked Questions

Evan used influencer marketing, an effective subscription model, and App Store Optimization to reach this figure.
Evan used Figma for design, Superbase for the backend, and Superwall for in-app purchases.
Gamification involves adding game-like elements to increase user engagement, which was integrated into Locked to enhance the user experience.
Influencer marketing for apps uses influencers to promote the app to their audience, thus increasing visibility and downloads.
Challenges include high competition, maintaining a good ranking, and adapting to algorithm changes.
Thibault Le Balier

Thibault Le Balier

Co-fondateur & CTO

Coming from the tech startup ecosystem, Thibault has developed expertise in AI solution architecture that he now puts at the service of large companies (Atos, BNP Paribas, beta.gouv). He works on two axes: mastering AI deployments (local LLMs, MCP security) and optimizing inference costs (offloading, compression, token management).

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