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Kosht

Personal finance that survives four currencies and a sole-trader tax year.

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KoshtKosht

Problem

Recording an expense has to take three seconds, or it stops happening by the second week. Everything else - currencies, the tax calendar, the monthly picture - is worthless if that first step is slow.

Solution

A native Android app: Kotlin and Jetpack Compose, an agentic AI chat that answers questions about the user’s own finances, an entrepreneur tax calendar, and a Wear OS companion for recording a spend from the wrist.

How it is used

  1. 01Record the spend in a couple of taps, from the phone or the watch.
  2. 02Ask the chat what happened this month - it answers over your own numbers, not a generic model.
  3. 03Check the tax calendar before the date rather than after it.

Results

  • Released and in daily use, version 5.13.
  • Wear OS companion ships with it.
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Products

Stack

  • Next.js 16
  • Supabase
  • Kotlin/Compose
  • Wear OS
Accounts in three currencies, one running total.Accounts in three currencies, one running total.
Accounts in three currencies, one running total.

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