Marion Kesteloot

Marion Kesteloot

LumsLums
Co-founder & CMO at Lums

About

Co-founder & Chief Marketing Officer at Lums, your financial AI assistant. Another finance app? Yep. But we actually asked real humans what they want, marketing magic, I swear! Passionate about growth, marketing, and building products that actually make life easier. Always testing, learning, and sharing what works.

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Maker History

  • Lums
    LumsChat with your money and let Lums build your budget.
    Feb 2026
  • 🎉
    Joined Product HuntJuly 29th, 2025

Forums

Budgeting apps shouldn't feel like a part-time job

Lums hit #11 organically on Product Hunt yesterday! A massive thank you to everyone who supported us by upvoting, commenting, and downloading the app.

The launch conversations highlighted one thing we ve felt since day one: most budgeting apps ask for way too much effort before giving you any value.

Usually, you download an app and spend the next hour fixing categories, adjusting settings, and correcting transactions. By the time you're "set up," you've already lost the motivation that made you download it in the first place.

@yulia_kuznetsova3 put it perfectly! She said she added her accounts to Lums and it just showed her where her money was going. No fixing things first. Just clarity.
@selina4 shared something similar. After months of bills piling up and small charges slipping by, having everything side-by-side finally made things click.

Lums Launching Tomorrow: Chat with your money & manage it with AI 🚀

Hey Product Hunt community!

I m so excited to announce that we are officially bringing Lums to you tomorrow!

We know that managing money can feel completely overwhelming whether you re stuck in complex spreadsheets or jumping between different apps. With Lums, we wanted to build something truly intuitive to save our time and our money!

You can literally chat with Lums to build a budget in 2 minutes, get 14-day cash predictions, and find hidden recurring costs instantly.

One Month Later: 380 Users, 4 Major Updates, and ExtraBar is Just Getting Started

One month ago, I launched ExtraBar on Product Hunt.

I had no idea what would happen.

380 users later, I'm genuinely overwhelmed.

Not just by the numbers, but by your feedback, and what you've built with it.

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