The Mom Test for Indie Hackers: Getting Honest Feedback Without the BS

You tell your friend about your app idea. They say "That's awesome! I'd totally use that." Six months later, you launch. They don't use it. Neither does anyone else.

What happened? They lied to you. Not maliciously — they were being polite. And you made it easy for them to lie by asking the wrong questions.

Rob Fitzpatrick's "The Mom Test" is the antidote. Here's how to apply it as an indie hacker.

The Core Principle

The Mom Test boils down to one rule: talk about their life, not your idea. If you pitch your idea and ask "would you use this?", you'll always get a yes. Instead, ask about their actual behavior, their actual problems, and their actual spending.

Good questions are ones where even your mom can't lie to you. Bad questions are ones that invite polite encouragement.

Bad Questions vs. Good Questions

Bad: "Would you use an app that does X?"

Good: "How do you currently handle X?"

The bad question asks about a hypothetical future. The good question asks about real, current behavior. If they don't currently struggle with X, they won't pay for a solution.

Bad: "How much would you pay for this?"

Good: "What are you currently spending to solve this problem?"

People are terrible at predicting what they'd pay for hypotheticals. But they can tell you exactly what they're spending right now on alternatives, workarounds, or manual labor.

Bad: "Do you think this is a good idea?"

Good: "What's the hardest part about [problem area]?"

Nobody will tell you your baby is ugly. But they'll happily complain about their actual problems if you give them the space.

Bad: "Would you recommend this to your colleagues?"

Good: "When did you last talk to someone about this problem?"

If they've never discussed the problem with anyone, it's probably not painful enough to drive word-of-mouth.

The Indie Hacker's Mom Test Cheat Sheet

You probably can't do 50 formal customer interviews while working a day job. Here's a lightweight version:

The Forum Mining Approach

Reddit, Indie Hackers, and niche forums are full of people answering Mom Test questions for you — they just don't know it. When someone posts:

• "I'm frustrated with..." → That's a real problem
• "I ended up building..." → That's real behavior change
• "I switched from X to Y because..." → That's a real purchasing decision
• "I spend $X/month on..." → That's real willingness to pay

Mining existing conversations is Mom Test data at scale.

The DM Approach

When you find someone describing your target problem online, send them a short, genuine message:

"Hey, I saw your post about [problem]. I'm researching this space — would you mind telling me more about how you currently handle it? Not selling anything, just trying to understand the problem better."

Most people are happy to talk about their problems. The key is asking about their experience, not pitching your solution.

Red Flags in Feedback

Watch out for these signs that feedback is unreliable:

• Future tense: "I would definitely..." (hypothetical, not committed)
• Generic enthusiasm: "That sounds really cool!" (polite, not actionable)
• No specifics: They can't describe the problem in detail because they don't actually have it
• Deflection: "I bet lots of people would want that" (they don't want it themselves)

Green Flags in Feedback

These signals indicate real, actionable demand:

• Emotional responses: They get visibly frustrated describing the current situation
• Specific stories: "Last Tuesday, I had to spend 3 hours because..."
• They ask when they can use it: Unprompted urgency is the strongest signal
• They offer to pay before it exists: The ultimate validation
• They introduce you to others with the same problem: They're solving your distribution for you

The Bottom Line

The Mom Test isn't about being skeptical of feedback. It's about structuring conversations so you get useful feedback. The goal is to understand reality, not to feel good about your idea.

If reality confirms the problem is real and painful? Build with confidence. If it doesn't? You've saved yourself months of wasted effort. Either way, you win.