This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Unlike most financial simulators, FinSim shows you two side-by-side scenarios so you can see exactly how carrying debt, having children, and your retirement timeline interact over decades. Debt— model your payoff timeline and see how it frees up wealth long-term. Child costs—powered by real NDCP childcare data specific to your county. Financial independence age—based on the 4% rule, updated in real time as you adjust your inputs. Built by a solo developer in SwiftUI. Free, no ads, no purchases.
Hey Product Hunt!
I built FinSim because I noticed that one of the biggest financial decisions people make — whether and when to have children — is almost always made on intuition rather than numbers.
Some people worry about whether they can afford kids while maintaining the lifestyle they want, but that concern stays vague because they've never actually modeled it out. Others are certain they want children and haven't really thought through what early childcare costs, education, college, and the long-term compounding effect on their retirement savings actually looks like in dollar terms.
I wanted to build something that takes that vague intuition and turns it into a concrete, visual projection — not to tell anyone what decision to make, but to make sure the financial picture is clear before they make it.
So FinSim runs two scenarios side by side: your financial trajectory with children and without, using real regional childcare cost data, your actual debt situation, and your retirement goals. The gap between those two lines on the chart tells you something no rule of thumb or gut feeling can.
It's free, no ads, no account required, and everything stays on your device.
Would love honest feedback from this community — happy to answer any questions about the model or the assumptions under the hood.
the side-by-side comparison actually made me rethink my debt payoff timeline, especially seeing how it ties into my retirement age. cool that it pulls in local childcare data too
The side by side scenario view is genuinely useful for stress testing life decisions. I was surprised how clearly the debt payoff timeline shifted my projected retirement age.
The side-by-side comparison is exactly what most simulators are missing, love that you used real NDCP county data for childcare costs. One thing I'd love to see is a tax layer on top, since the 4% rule doesn't really show how Roth conversions or capital gains drag change your actual FI number year by year.
Love the side-by-side comparison and using real NDCP data for childcare costs. One thing that would make this even more useful for me is the ability to model healthcare costs in retirement, especially since Medicare doesn't cover everything and long-term care can wreck a plan. Could you add a toggle for estimated out-of-pocket medical expenses tied to the user's projected retirement age?
About FinSim on Product Hunt
“See how kids, debt & retirement shape your wealth”
FinSim was submitted on Product Hunt and earned 10 upvotes and 11 comments, placing #117 on the daily leaderboard. Unlike most financial simulators, FinSim shows you two side-by-side scenarios so you can see exactly how carrying debt, having children, and your retirement timeline interact over decades. Debt— model your payoff timeline and see how it frees up wealth long-term. Child costs—powered by real NDCP childcare data specific to your county. Financial independence age—based on the 4% rule, updated in real time as you adjust your inputs. Built by a solo developer in SwiftUI. Free, no ads, no purchases.
FinSim was featured in Productivity (656.3k followers), Finance (6.1k followers) and Personal Finance (2.9k followers) on Product Hunt. Together, these topics include over 155.9k products, making this a competitive space to launch in.
Who hunted FinSim?
FinSim was hunted by Matthew Feliciano. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how FinSim stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Matthew Feliciano