Costman

I built Costman trying to solve a very personal problem.
My parents aren’t good with technology and have mostly been left behind by it. They keep every receipt, write expenses by hand, and still struggle to answer simple questions like where they pay more for the same groceries or whether prices actually went up or it just feels that way 🤔.

I wanted something they could use without learning an app or dealing with spreadsheets. Something that felt like sending a message — something they’re already experts at 😄 — but still gave them useful answers later.

The hardest part was making it flexible enough so you don’t have to log things perfectly, yet still be able to ask meaningful questions about spending patterns and price differences.

In what other ways could Costman be useful to you?

Well, if any of these situations sound familiar to you...

🐜 You don’t really know where your money goes each month
Those small daily purchases — coffee, snacks, taxis — feel harmless on their own. But together, they can quietly eat up a big chunk of your income without you noticing.

📊 You wish your expenses were organized, but spreadsheets feel unrealistic
In a time-poor world, keeping spreadsheets updated and analyzing them feels like a job on its own. You want something just as useful, but more natural — like an Excel in your pocket that you can actually talk to. Simple, fast, and always with you.

How does it work?

Three simple steps to understand your money.

1️⃣ Create categories
Set up categories with a name and a budget. Adjust, edit, or delete them anytime as your spending changes.

2️⃣ Log expenses
Add expenses with the place, a short description, and the date. Everything stays organized automatically, and you can edit or remove entries whenever you want.

3️⃣ Ask anything
Ask Costman questions about your spending and get instant answers based on your data — patterns, comparisons, and insights that actually help.

Curious to hear:

1️⃣ How do you currently keep track of your expenses (if you do at all)?
2️⃣ What’s one question about your money you wish you could answer instantly? 💡
3️⃣ What feature would you love to use in Costman?

🌟 Pro tip for those who made it this far: you don’t have to type everything 🎤. Using the keyboard microphone to log expenses or ask questions makes it surprisingly fast and comfortable — especially when you’re adding several things at once. 🌟

You can use it for free, no signup required.
Ask any question, anytime.
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