RuLa Gems — Indie iOS / macOS Developer

01

iOS Apps

MuscleTrace

Log strength training and watch your habit grow on a GitHub-style heatmap. Streak tracking and same-weekday reminders keep you consistent.

View on the App Store

02

macOS Apps

GlassCSV

Productivity · macOS

A macOS-native CSV editor designed to keep every cell as plain text — no automatic date conversion, no leading-zero loss — with fast browsing, filtering, and editing.

View on the Mac App Store Product page →

InputViewer

Utilities · macOS

A menu bar utility that shows your current input source — Japanese, English, Kana and more — at a glance, so you never type into the wrong field again.

View on the Mac App Store

BluetoothBatteryBar

Productivity · macOS

A menu bar utility that shows the connection state and battery level of every Bluetooth device — keyboards, mice, headphones — so you never run out at the worst moment.

View on the Mac App Store

BunniesBar

Utilities · macOS

A lightweight system resource monitor where a little rabbit living in your menu bar gently shows how your Mac is doing through its expressions and actions.

View on the Mac App Store

03

About

Solo developer designing and shipping native iOS / macOS apps. I focus on UX that supports long-term habits and follow Apple's Human Interface Guidelines.