Illustration of Kona, the creator of WariSaku

Hi, I'm Kona

I built WariSaku and run it.

I have a master's degree in science from a national university, and now work a regular office job near Tokyo.

My special skill is being lazy — my happiest moments are sinking into a beanbag, munching on potato chips and binge-watching Netflix on my days off.

My everyday life is the height of laziness, but I checked WariSaku's calculation logic carefully. Since it deals with money, I designed it cautiously to be bug-free — but if you ever spot something, I'd really appreciate it if you let me know via the contact form.

🌱 What I want to do next

I have a quiet hunch that the age of blockchain is on its way.

WariSaku already has a small feature for sending money via JPYC (a digital currency pegged 1:1 to the Japanese yen). From here, I'd love to expand the “settle instantly with JPYC” experience a little more.

* This is just a personal “wouldn’t it be nice,” not investment advice.

Thank you so much for using WariSaku. I'll keep growing it little by little, aiming for an app that's always quick and easy to use.

🍵 Support me if you’d like

If you've come to like WariSaku, a small tip via JPYC keeps me grinning and coding.

Support the developer