Stop guessing why users aren't sticking around.

Product and technical strategy for health and wellness startups. Find out what's holding your product back, what to simplify, and what to build next.

Feargal Walsh

You built the product exactly the way you imagined. Everyone told you it was amazing.

Your agency or AI executed your vision perfectly. Somehow, almost nobody sticks around.

Everyone's saying nice things. Nobody's buying, or asking for more.

You've had plenty of feature ideas. Every time you build one, people still don't come back.

Why me

Most technical advisors can code, or they can read a customer. Rarely both.

I spent years as a senior engineer shipping production software, including a partner integration that generated $1M in annual revenue in two weeks, and systems that scaled to millions of daily active users. I've spent just as long sitting with founders while they talk to real users. That combination is what this work actually needs.

Not a dev shop

Offshore agencies and AI build what you ask for. They won't push back when you don't know what that is.

I'm not a developer for hire. I'm the second opinion you don't have. A dev shop builds what you tell them to build. I tell you what's worth building.

A clear path from product confusion to your next move.

  1. Start with a free audit. Tell me about your product and where you're stuck.
  2. Choose the right support. Agree on what your product needs.
  3. Move forward with a clear plan. Know what to fix, simplify, or build next.

How we can work together.

Product Audit

Know what to fix before you spend more

A structured teardown of what you've already built. I use the product as a first-time customer, dig into your usage data, and understand your vision. You get a plain-English six-month roadmap, plus the technical recommendations to get there: a written report, wireframes, product requirements, and a call to walk through it.

$2,500 (founding-client pricing) · two week turnaround

Ongoing Advisory

Make sure what your agency builds is what your users want

For founders building with an agency or dev team. I'm your product lead on the inside, so what ships is what users need. The goal: an app that's 10x easier and more exciting to use within three months.

Each month:

  • I own the user experience through the build, so what your team ships matches what was designed.
  • You and your team get a direct line to me, with answers within one business day and calls when needed, so nobody stalls or guesses.
  • I review every build against the spec as it lands, so problems get caught in days, not after launch.
  • I design and spec new features before development starts, so your agency builds the right thing the first time.
  • I turn user and GTM feedback into a prioritized list of changes, so every update fixes what users care about.
  • I tighten the handoff between design and development, so each release costs less time and money than the last.
$5,000/month (founding-client pricing) · month-to-month, no lock-in

Hands-On Development

Get expert help building what actually matters

Sometimes the answer is that something needs to actually get built, not just advised on. Priced like senior, hands-on engineering time, not agency day rates, so it's only the right call when handing this off to your own team genuinely isn't an option.

Custom project pricing

If I don't think I can help, I'll tell you straight away.

Get a Free Product Audit

What people say.

"Feargal quickly got up to speed on our product, identified key technical gaps, and helped us prioritize roadmap decisions that saved us time and money. He brought clarity where there was chaos."

Burak Duvenci, Founder, Gimme Shelter DG

"He helps me feel confident about technical decisions by breaking things down in a way that makes sense. It's like having a knowledgeable friend in your corner who's genuinely invested in your success."

Athena Sees, Founder, PeaceTalksAI

"His guidance helped me reframe my go-to-market strategy in a way that finally made sense, especially around how to phase early outreach and validation."

Edgar Masters, CEO, 20Twenty in 2020

"I've had some development road blocks and reached out for advice and he asked the right questions and got straight to answers. We got things sorted within days after a month of struggles."

Alexander Willard, Founder, Founders Chat

"He challenges the requirements of a problem to identify the most effective way of solving it."

Mazi Arjomand, CTO, Wag!

"His work on optimizing our marketplace features has been exceptional, leading to tangible improvements in both user experience and operational efficiency."

Joseph Schricker, Principal Product Manager, Wag!

Frequently Asked Questions.

I already have a developer or an agency. Why do I need this too?

You probably don't need to replace them. You need someone who isn't billing you by the hour to tell you what they never will. I don't build, I evaluate, sometimes design, and advise. Most clients keep their existing team and just make better decisions about how to use them.

Can't I just ask ChatGPT or Claude about this?

You can, and you should, for a lot of it. Where it falls short is judgment calls that need context an AI doesn't have: your actual customers, your actual codebase, your actual constraints. I use AI tools daily in my own work. This is what happens when someone who does that full-time puts it to use on your specific product.

Why health and wellness founders specifically?

I am passionate about this industry and can add insight beyond just my technical and product expertise. Founders in this space are usually already spending real money with an agency, which tells me they're serious, and the product lives or dies on whether a real person keeps coming back, not whether the feature list looks impressive. That's exactly the problem I'm built to solve.

If you know all this, why aren't you building your own product?

I have no shortage of ideas. What I don't have yet is the runway. Having the idea is the cheap part; getting one to market takes real money, undivided attention, and a long stretch of earning nothing while you do it. Building mine badly in the gaps between client work would be worse than not building it at all.

So for now I help founders get theirs off the ground. I like the work, I get sharper at it with every product I take apart, and it funds the day I take my own run at it.

Take the first step toward a product people actually stick around for.

Get a Free Product Audit