You have an app idea you’re excited about. You can see how it works, who it’s for, and why people will love it. The temptation is to start building immediately.
Don’t. Not yet.
Most indie apps fail not because they’re poorly built, but because nobody wanted them in the first place. Validation costs a fraction of development and saves you months of wasted effort.
Start with competitor analysis (3-5 days, free)
Before building anything, look at what already exists. Search the App Store and Google Play for apps similar to your idea. Download the top 5-10.
What you’re looking for: which features appear in every competitor (these are table stakes), what users complain about in reviews (these are your opportunities), what’s missing that users wish existed (this is your differentiation), and how they monetize (this sets pricing expectations).
If the market is completely empty, that’s not necessarily a good sign. It might mean there’s no demand. If the market is crowded with well-funded competitors, you’ll need a clear angle that differentiates you.
The most valuable insight comes from 1-star and 2-star reviews of competing apps. Users tell you exactly what’s broken and what they wish existed.
Landing page test (1-2 weeks, $200-500)
Create a simple landing page that describes your app as if it already exists. Explain the problem it solves, show a few mockup screens, and add a call-to-action: “Join the waitlist” or “Get early access.”
Drive some traffic to it through targeted social media ads ($5-10/day for a week or two). Measure how many visitors sign up.
What the numbers mean: 10% or higher conversion (visitors to signups) is a strong signal. 5-10% is promising but needs more investigation. Below 5% suggests your messaging isn’t resonating or the problem isn’t painful enough.
Tools like Carrd, Leadpages, or even a simple Framer page work fine. You don’t need anything fancy — you need data.
Fake door test (1-3 weeks, $300-1,000)
A step beyond the landing page. Make it look like a real app listing — show what it would do, include a “Download” button, but redirect to a waitlist instead of an actual download.
This tests something the landing page doesn’t: would someone actually try to download this? Buffer validated their entire product with this approach and attracted 70,000 signups before writing a line of code. Dropbox did something similar with an explainer video that generated 70,000+ signups overnight.
Target: 5%+ click-through on the download button and 1%+ conversion to email signup.
Surveys (1-2 weeks, free to $500)
Talk to your potential users. Surveys help you understand the “why” behind behavior — not just whether people want your app, but why they’d use it and how it fits into their lives.
Use Typeform or Google Forms. Target 100+ responses minimum. Ask about their current workflow, their biggest pain points, and what they’ve already tried. Avoid leading questions — “Would you use an amazing app that saves you time?” will always get a yes.
The catch: What people say they’d do and what they actually do are different things. Surveys validate problems, not solutions. Use them as input, not proof.
MVP — Minimum Viable Product (4-8 weeks, $2,000-10,000+)
If the signals from your landing page, fake door test, and surveys are positive, build the absolute minimum version of your app. Not a “basic version” — the smallest thing that tests your core hypothesis.
If your app idea has 20 features, your MVP has 1-3. The ones that prove whether your core value proposition works. Everything else comes later.
How to judge it: Monitor D1 retention (do people come back the next day?). If D1 is above 25%, your core value is working. If it’s below 20%, rethink the value proposition before adding more features.
Pre-launch waitlist (ongoing, free)
While you validate and build, collect emails. Everyone who showed interest during your tests goes on the list. By launch day, you want at least a few hundred people ready to download.
Typical conversion from waitlist to day-one download is 5-10%. So 1,000 emails = 50-100 downloads on day one. Not massive, but it’s a starting base with real intent.
The combined approach
The smartest indie creators layer these methods:
Week 1: Competitor analysis + start a survey.
Weeks 2-3: Launch landing page + fake door test, run targeted ads.
If signals are strong → Weeks 4-11: Build MVP.
Week 12+: Launch MVP to waitlist users, measure retention.
Total investment before full development: $500-$1,500 and 3-4 weeks. Compare that to 6 months and $20,000+ building something nobody wants.