Indie App Studio
Apps that solve real,
everyday problems
Tree City Design builds iOS apps focused on privacy, simplicity, and doing one thing really well.
The Portfolio
Our Apps
From voice journals to workout timers — simple tools built to do one thing well.
ChronoVoice
Describe a workout in your own words and get a voice-coached interval timer with personality.
HomeCOO
Your home management assistant — track tasks, schedules, and household operations in one place.
OutTheDoor
Gentle departure reminders that help elderly loved ones leave on time without the stress.
ScreenPact
Family screen time management that builds trust instead of resentment.
Voice Crumbs
Voice Crumbs captures fleeting thoughts as encrypted voice journal entries — speak, and your memory is saved privately on your device.
WTHooperAI
AI-powered basketball training that adapts to your game and pushes your skills forward.
One person. Many apps.
Tree City Design is a one-person app studio. Every app starts with a problem I noticed in my own life — then I build the simplest possible solution.
No venture funding. No growth hacking. Just useful tools, built with care, that respect your privacy and your time.
From the Blog
Latest Posts
Development stories, app updates, and the occasional deep-dive.
Why I'm Building 11 Apps as a Solo Developer
A solo indie developer with 11 apps sounds insane. Here's the method behind it — and the tools that make it possible.
Why You Can't Stick With Journaling (And What to Do Instead)
Most people quit journaling within two weeks. The problem isn't motivation — it's the medium.
State of the Studio: February 2026
Where every Tree City Design app stands right now, what's shipping next, and what we learned this month.
Follow Tree City Design
New app launches, development stories, and the occasional useful tip. No spam.