Native iOS apps
SwiftUI apps from idea to App Store, with clean architecture, accessibility and App Store review handled.
Available for projects & roles
Native iOS apps
for real communities.
I'm Chad, an iOS engineer. Di Nerd Apps is my independent studio. I've shipped 60+ SwiftUI apps across iPhone, iPad, Apple TV and iMessage, from live transit trackers to AI food scanners.
- 60+
- apps on the App Store
- 4
- Apple platforms
- 240+
- App Store ratings
- 2019
- shipping since
Featured
NYC Parking Ticket Search
Enter a plate, see every ticket. Built on NYC Open Data, it's the studio's most-used app, rated 4.6★ from 65 reviews and still updated today.
View on the App StoreApps
A selection of what's live right now. Tap any app to open it on the App Store.
NYC Parking Ticket Search
Find and track every NYC parking ticket from just a license plate.
CT Bus
Live positions for every CT Transit bus, powered by GTFS-Realtime.
CT Trains
Hartford Line trains on a live map, with delay predictions and countdowns.
311 NYC
Browse, search and follow NYC 311 service requests near you.
NYC Jobs
Search open New York City government jobs in a clean, fast app.
CT State Expenses
See where Connecticut spends its money, straight from open state data.
US Debt Checker
A live U.S. national debt clock built on official Treasury data.
Bloomfield CT
Trash-day reminders, town events and meeting agendas for Bloomfield.
NYC Emergency
NYC emergency notifications and weather alerts in one simple app.
Jamaica Food AI
Snap a plate of yaad food and get the dish, portion and calories.
Jamaica Plants
Point your camera at a leaf or flower to identify 30,000+ species.
Jamaica Patois Translator
AI translation between English and Patois, with the culture behind it.
Nuff
Hear it, find it. Identify any song around you with ShazamKit.
Yard Dominoes
Caribbean partner dominoes. The TV is the table, your iPhone is your hand.
Snake N Ladda
Snakes & Ladders for family night on the biggest screen in the house.
Jamaica Trivia
Test what you know about Jamaica's history, culture and geography.
Jamaica Cookbook
Oxtail, curry goat, ackee and saltfish, step by step from the couch.
Loodi
Jamaican Ludi, played turn by turn right inside the group chat.
Snake N Laddaz
Snakes & Ladders that lives in your Messages thread.
Groceryy List
One shared grocery list the whole household edits in Messages.
Patois Translate
Type in English, send real Patwa, without leaving iMessage.
Bibi
A shared baby log for the family thread. No account, no server.
Likkle
A newborn tracker made for one-handed logging at 3 a.m. Private by default.
Happy Mothers Day +
Animated cards, quotes and stickers to celebrate Mom.
Happy Fathers Day +
Images, dad jokes and stickers for Father's Day.
Juneteenth Day
The history and meaning of Juneteenth, with stickers to share.
What I build
Freelance work, consulting and full-time roles. Clean, native, and built to last.
Civic & open-data apps
Public datasets and live feeds like GTFS-Realtime and city open data, made into apps residents actually use.
AI features
Camera recognition, on-device models and LLM-powered translation, added where they genuinely help.
Beyond the iPhone
iMessage apps, Apple TV games with iPhone controllers, iPad layouts and widgets.
New · AI connectors
Connectors
Tools that let AI assistants like Meta Muse and Claude look up public NYC data for you. Free, read-only and unofficial: no login, and nothing you ask is stored.
Connector support
Questions, bugs or data problems with a connector? Email us and include the connector name.
About
I'm Chad Muirhead, a Jamaican-born iOS engineer based in Bloomfield, Connecticut. I started Di Nerd Apps in 2019 to build the apps I wished existed: tools that make city data easy to use, and apps that celebrate Caribbean culture.
I also teach SwiftUI on YouTube and spoke at CTData 2026 on building your own apps and databases with AI.