5 Things Startups Should Know Before Building Their First Mobile App

Building a mobile app used to require an entire development team, a budget that made most founders laugh, and months of back-and-forth before you had anything to show for it. That has all changed. Tools like Claude Code have made it genuinely possible for non-developers to seemingly create functional apps out of thin air through what people are calling "vibe coding" — basically describing what you want in plain language and letting AI write the code.

It's a real shift, and honestly, I’m still wrapping my head around it. The barrier to entry has never been lower.

But here's the thing: the barrier to building an app and the barrier to launching one that actually works are two different things. The same problems that have always tanked mobile apps — no clear market need, poor user experience, underestimating ongoing costs — don't disappear just because the code was faster to write. Research has consistently shown that roughly 35–40% of startups fail due to a lack of market demand, meaning the product didn't solve a problem people actually had.

If you're about to dive into building your first app (whether you're doing it yourself with AI tools or handing it off to a developer), read this first. These five things will save you a lot of frustration — and probably a lot of money.

1. Validate the Problem Before Building

One of the main reasons mobile apps fail is that they try to solve a problem that either doesn’t exist or isn’t urgent for users. Validating the problem early ensures your app addresses a real user need, which increases the likelihood of adoption and long-term engagement.

Startups can validate the problem using several methods:

• Surveys and questionnaires to collect quantitative data from potential users

• User interviews to understand specific pain points and behaviors

• Landing pages or pre-registration campaigns to measure interest in the solution

• Prototype testing to observe how users interact with a minimal version of the product

Validating the problem before development helps prevent wasted resources, reduces financial risk, and ensures the team focuses on solving meaningful challenges. Lean startup principles, like the ones outlined in The Lean Startup by Eric Ries, emphasize testing assumptions early and iterating based on real user feedback, laying a strong foundation for long-term success.

2. Understand Your Target Users and Market

Even when a problem exists, an app will only succeed if it aligns with user expectations and behaviors. Understanding your target users and market is essential for designing an app that delivers real value and keeps users engaged over time. Many mobile development teams, including companies like DreamWalk, consider early research into user behavior a critical step before development begins.

Startups should analyze key aspects of their audience, such as:

• Demographics: Age, profession, and level of technological familiarity, which influence how users interact with apps

• Behavior patterns: How users currently solve the problem your app addresses

• Device preferences and engagement habits: Session length, frequency of use, and preferred platforms

Research shows that about 25% of downloaded apps are used only once (source), underscoring the importance of creating immediate value for users. By understanding your audience and market early, you can design an app that truly meets user needs and encourages long-term engagement.

3. Launch a Minimum Viable Product (MVP)

A Minimum Viable Product (MVP) is a simplified version of your app that includes only the core features necessary to solve the main problem. MVPs allow startups to test assumptions quickly, gather early user feedback, and iterate efficiently.

Key advantages of launching an MVP include:

• Lower development costs: Only essential features are built initially

• Faster time-to-market: Enables early engagement with potential users

• Data-driven decisions: Feature prioritization is based on actual usage

• Reduced risk: Prevents investment in features users may not want

Many successful startups, including Airbnb and my own Nonprofit Template Library, began with MVPs and gradually expanded functionality after validating demand. Starting with an MVP helps teams optimize development resources, focus on critical features, and build an app that truly meets user expectations.

4. Prioritize User Experience and Platform Choice

Choosing the right platform—iOS, Android, or both—is a critical strategic decision. Building an app for both iPhone and Android users doesn't have to mean paying to build two separate apps. There are development methods that let you cover both platforms with a single build, which can significantly reduce your costs and time.

Equally important is user experience (UX). Research shows that users form opinions about an app within seconds, and poor UX is a major reason for early uninstalls. Startups should focus on:

• Intuitive navigation for easy interaction

• Fast load times to prevent frustration

• Clear onboarding to help users understand the app quickly

• Consistent and appealing visual design

• Security and privacy compliance to build trust

Strong UX directly impacts retention, engagement, and app ratings. By prioritizing user experience from the start, startups can create apps that users want to keep, use regularly, and recommend to others.

5. Plan for Growth, Maintenance, and Monetization

Launching an app is just the beginning. Startups must plan for ongoing maintenance, updates, and backend scalability to accommodate growth and evolving technology. Without proper planning, apps can quickly become outdated or unstable, harming user retention.

It’s also important to define monetization strategies early. Options may include:

• Freemium or subscription models

• In-app purchases

• Advertising-based revenue

• Premium paid apps

Additionally, implementing analytics and tracking tools is essential for measuring user engagement, monitoring performance, and guiding future improvements. By planning for growth, sustainability, and monetization from the start, startups can ensure their app remains relevant, scalable, and financially viable over time.

Key Takeaways before you start vibe coding that app

We're living in a genuinely exciting moment. A founder with a great idea and zero coding background can sit down with an AI tool and have a working prototype by the end of the week.

But access to the tools doesn't replace the thinking that has to happen before you use them. The apps that fail don't usually fail because the code was bad. They fail because nobody validated the idea, the user experience felt clunky, or the business model was an afterthought. Vibe coding can get you to "it works." It can't get you to "people love this and keep coming back."

That's where the strategy piece matters, and honestly, it's the same lesson I keep coming back to in web design. I've worked with many nonprofits and small businesses that came to me with a site that technically worked but wasn't doing anything for them. The tool was there. The intention was good. But the foundation wasn't solid.

Whether you're building an app or a website, the technology is the easy part now. The hard part is understanding your audience, planning for growth, and making something people actually want to use. That's always been the work. Start there.