01 In app review
Human Authenticator
A mobile app that lets two people pair their phones face to face, then compare a rotating phrase as a signal that both devices still hold the paired keys.
Visit product siteIndependent software studio
Useful software,
made personally.
01Products
The product shelf
A growing collection of independent apps, each designed around a clear job and built to earn its place.
02 In development
Open Character
A mobile home for AI agents with a rigged 3D character, text chat, speech input, device voices, and real-time conversation.
Details coming with release03 In development
PlayPrint
A web app that turns personal photos into printable coloring pages and personalized coloring books.
Visit product site04 Public demo
Jazz Board
A shared visual canvas where people and their AI agents can shape one live model together in the browser.
Open the demo02About
One person,
end to end.
This is the home for software created and sold by Zachary Walls.
I take products from the first sketch through launch and continued improvement. Keeping the work close means every detail has an owner and every customer can reach the person behind the product.
- 01Product design
- 02Full-stack development
- 03Ongoing support
03Contact