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Mari Cox

Hi! I’m a bootstrapped founder who is turning a 2009 Excel formula into a fintech app helping people forecast cash flow and emotions 10 years ahead. Currently developing the beta version for private testing.


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Recent activity

Feb 1, 2026commented on a post
My Landing Page obsession killed my SaaS product.
Feb 1, 2026commented on a post
Building a product in 20 hours and growing it to a 5-figure ARR
Jan 18, 2026commented on a post
One thing users did after launch that surprised me
Jan 18, 2026commented on a post
One thing users did after launch that surprised me
Dec 31, 2025commented on a post
One thing users did after launch that surprised me
Dec 31, 2025commented on a post
Building is easy. Deciding what not to build is harder.
Dec 31, 2025commented on a post
Ideas are cheap. Execution is violent.
Dec 31, 2025commented on a post
1 change made Reddit finally work for me.
Dec 31, 2025commented on a post
One thing users did after launch that surprised me
Dec 31, 2025commented on a post
One thing users did after launch that surprised me
Dec 31, 2025commented on a post
One thing users did after launch that surprised me
Dec 29, 2025commented on a post
I built a watercolor-style pixel art tool over Christmas 🎨
Dec 29, 2025commented on a post
#1 clarity trick that helps me close projects faster 👇
Dec 29, 2025commented on a post
Building is easy. Deciding what not to build is harder.
Dec 29, 2025created a post
One thing users did after launch that surprised me
Dec 19, 2025created a post
Launched an app that tracks money and emotions together — early lessons & questions
Dec 15, 2025commented on a post
Fixing my sleep using public humiliation and giving away a Kindle
Dec 15, 2025commented on a post
My playbook for getting B2B leads from Reddit without being a spammer (0 to $300 MRR in 3 weeks)
Dec 15, 2025commented on a post
Reddit is the only platform where one smart month can beat an entire year of posting anywhere else
Dec 15, 2025commented on a post
Someone just signed up at 3:47am. I was asleep. My AI agent wasn't.

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