About Kibo

A small team. A big obsession with calm finance.

Kibo is built by people who believe expense tracking should feel like jotting in a notebook, not auditing your life. Here's the story and the human behind it.

The team behind Kibo

Saul Molinero

Builds Kibo

Senior Software Engineer with a decade of mobile and backend craft. I started Kibo because every other expense app I tried felt like homework, and I needed one for my own finances that didn't.

I write the apps, the API, and most of the AI bits that make the magic happen. If you find a bug, you'll get an email back from me, not a ticketing system.

LinkedIn GitHub saulmm.github.io

A bit of background

12+ years building mobileFrom early Android days to modern declarative UI. Apps with millions of users, performance budgets that mattered, and the discipline that comes with it.

Full-stack craftResilient backend services, modern data layers, and cloud-grade infrastructure. The kind of stack that lets a one-person team punch above its weight.

AI & machine learning, appliedOCR pipelines, NLP for naming expenses, prompt engineering. AI as a quiet helper, not a circus.

Community at heartFormer Android Developer Group & Google Developer Group organizer. Conference speaker, writer, and very loud advocate for sharing what you learn.

The product

What is Kibo, really?

An expense tracker for iPhone and Android. Type the expense or snap the receipt, and Kibo adds the category and the image. Fixed expenses, Spaces, savings jars and budgets sit around it, and the summaries nudge instead of shame.

It speaks English, Castilian Spanish, Hindi, Russian and Filipino.

Receipts and quick entriesSnap a receipt or type “Starbucks 4.80”; the expense lands in the right category.

Fixed expensesRecurring charges show up before they bite you.

Spaces and savings jarsGroup a trip or a project, and put money aside for what's next.

iPhone and AndroidSign in with the same account and see the same expenses on both.

Foundations

Built for trust, quietly

The principles behind Kibo's architecture. Not a stack list (that stays out of public view, by design), but the qualities those choices guarantee for you.

Native & modernA mobile experience that feels native to your device, with the latest design language baked in.

Encrypted in transit and at restYour data travels over HTTPS and sits on encrypted disks. We can't read it casually, and we don't want to.

AI that respects youSmart features that help without compromising what's yours. Your data fuels your experience, not anyone else's.

Tested & deployed with careEvery release goes through automated checks before it ever reaches your phone. Ship slow, ship safe.

Always in syncYour data follows you across devices, and expenses you log offline sync when you're back.

Say hi

Bug, feature idea, or just a hello? Emails go straight to my inbox.

Email hello@ki-bo.com

Download on theApp Store GET IT ONGoogle Play