Selected work

Apps I've designed, built and shipped

Indie products and studio apps across iOS and Android — from offline budgeting to Japanese learning and sleep soundscapes.

Finance · Budgeting

Penno

Offline-first budget & debt tracker. Pay once, own it forever.

A budget tracker, debt tracker, and recurring expense manager that works 100% offline. No bank login, no account, no subscription, no ads.

App Store Website

Education · Japanese

Learn Japanese: Kana & Grammar

Hand-crafted JLPT lessons, kana drills, and an AI grammar tutor.

JLPT N5–N1 lessons, kana drills, verb conjugation, and an AI tutor that explains grammar mid-lesson. Built for serious learners — no streak guilt-trips.

App Store Website

Health · Sleep & Focus

Shizumori

Mix 100+ soundscapes for sleep, focus, and calm.

A calm, dark, beautifully simple sound app. Blend over 100 high-quality soundscapes across 15 categories into your own perfect mix.

App Store

Sports · Utilities

Archery Scoring Helper

Tap-the-target scoring for the range and the field.

A fast, focused archery scoring app. Tap the target face to record every arrow, or use the number pad — averages, X-count and totals update live.

App Store

At Deplike

Deplike

Music · AI

Chordie · AI Guitar

Play any song — Unity core, React Native shell, native bridges.

App Store

Music · AI

Chordie · AI Ukulele

The Chordie engine, tuned for ukulele players.

App Store

Music · Native

Guitar Effects & Amps

Maintained natively in Kotlin and Swift.

App Store

Health · AI

Salus / Dert AI

Architected end-to-end in React Native with server-side attribution.

App Store