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.
AI Workout Timer
Describe a workout in your own words and get a voice-coached interval timer with personality.
Headroom
Gentle departure reminders that help elderly loved ones leave on time without the stress.
Hey Kitchen!
Your hands are covered in flour. Just ask. Converts cups to grams, scales recipes, and sets timers — all by voice.
Ask Maya: Home Manager
Maya knows your house. She tells you what matters before it costs you.
Journeyman Voice Calcs
Speak your trade math question. Get a tape-measure-ready answer in fractions.
LiDART Takeoff
Scan the Room. Get the List. Order from the Truck.
OutTheDoor
Never forget what you need when you leave. OutTheDoor uses multi-signal departure detection to remind you of the right things at the right time — keys, meds, wallet, umbrella — before you're already gone.
Voice PDF Extractor
Extract specific pages from any PDF — by tap or by voice. See every page as a visual thumbnail, pull out exactly what you need, and keep your files completely private.
Pocket GC
The remodel unlock. Everything a homeowner needs to manage a multi-trade renovation without hiring a general contractor — trade sequencing, scope of work, budgets, and an AI consultant who knows your project.
RenoScan
Scan Your Room. Get Your Materials List.
Tech Activity Pact
Family screen time management that builds trust instead of resentment.
Sound Levels
Measure sound levels instantly with four specialized modes. Whether you're in a workplace, nursery, music setting, or everyday environment — get accurate, real-time decibel readings with context.
Stashboard
The instrument panel for a life that doesn't come with one. Stashboard is an ADHD co-pilot that comes to you — through widgets, Live Activities, and gentle nudges — so you never have to remember to open an app.
Voice Crumbs
You didn't fail at journaling. Journaling failed you. Voice Crumbs replaces the blank page with a single gesture — press, speak, done — encrypted on your device, never uploaded anywhere.
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 Are We Still Tapping Buttons?
The process of doing math on a jobsite hasn't changed in 30 years. The technology to fix it has been sitting in your pocket the whole time.
Why Tolerate All This Friction?
You don't need to memorize formulas. You don't need a cheat sheet. You need to say what you need and get the answer. That's it.
You're Not Here Because You Like Math
Nobody picked up a hammer because they loved calculating rafter lengths. The math is part of the job — but it doesn't have to slow the job down.
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