Get in touch

Contact

I'm Gabriel Kositsky, an independent developer. I build and maintain LoanWise under the name O.G Technology, from Israel.

Who

Gabriel Kositsky, O.G Technology. Based in Israel.

Why LoanWise exists

I built LoanWise while I was apartment hunting. I kept re-typing the same numbers into web calculators that reset every time I changed a tab, couldn't show me two options next to each other, and couldn't model an index-linked loan at all. I wanted something that let me move one slider and see what actually changed. That's the app.

Response Time

I read every email. LoanWise is a one-person project, so replies usually take about four business days.

Before you email

  • Most questions are already answered on the support page.
  • Bug reports — include your device model, OS version, and what you'd entered when it happened. That's usually the difference between a fix this week and a fix never.
  • Feature requests — genuinely welcome. A lot of what's in the app came from people who wrote in.

Have a common question?

Our comprehensive Help Center and FAQ might have the answer you're looking for immediately.

Visit Support FAQ

What LoanWise is and isn't

LoanWise is a calculator. It shows you what a loan's payments look like given numbers you supply. It isn't financial advice, and I'm not a licensed advisor, broker, or lender — I'm a developer who got tired of bad calculators.

The projections it produces, particularly for variable-rate and index-linked loans, are estimates based on assumptions you set. They're for comparing scenarios, not predicting one. Before you sign anything, talk to your lender and, ideally, someone qualified.