I work
on digital
products.
I'm interested in how new technology becomes a usable product.Founder of 
titkar.ai and gondnok.app.
I design it.I build it. ThenI run it.
This site included.Read the colophon
What I build for myself
From idea to the App Store: native iPhone apps and web products I design and build.
iOS apps06
Scared on a plane? Tap once, and it explains what's happening.
When the plane shakes, makes a strange noise or seems to drop, it tells you what is happening right now and breathes with you. Works offline, in airplane mode; the turbulence forecast is built from 2.4 million NOAA pilot reports.
App Store
10 screensOil change, tire swap, insurance: what's due, on your car's display.
Oil changes, tire swaps, inspection and insurance: what's due next sits in a big, glanceable widget on your iPhone and on your car's display.
Tells you if you can see the northern lights from your backyard tonight.
Answers in one sentence from real-time NOAA space weather, cloud cover, darkness and the moon, and sends one alert when it's actually worth going outside.
Claude Code, Codex, Cursor and Grok limits on your Home Screen.
The usage limits of your AI coding tools on your Home Screen and Lock Screen, with a countdown to every reset and a heads-up before you run out.
150,000+ real rockhounding spots, with the rules for each. Works offline.
Mineral and mining sites from USGS records, with who manages the land and whether there's a mining claim before you dig. The map works offline.
Scan a lottery ticket and know in seconds if you won.
Reads every line of your Powerball, Mega Millions and Millionaire for Life tickets, multi-draw tickets included, and checks them against the official winning numbers.
- 07Next appThe portfolio keeps growing; the next app is already in the works.The portfolio keeps growing; the next app is already in the works.
