ddApps

Privacy-oriented software,
built to last

ddApps is the independent studio of Dulio Denis, a software engineer in New York City. After a decade of designing and shipping iOS apps, first in Objective-C then Swift, the work today is accelerating and more deliberate. Products engineered in SwiftUI and Zig, and built around a simple philosophy: software needs to give you super-powers, respect your attention, and protect your privacy.

Dulio Denis

Selected work

Coming Soon

HumanCheck

Verify that the friends and family you’re communicating with are really who they say they are. HumanCheck pairs two people through a shared, time-limited HumanCode. One human checking another.

Visit site →
gamezonearcade.com

GameZone Arcade

A growing arcade of free retro games that run right in the browser. No installs, no accounts, no ads chasing you around. Open a tab and press start. Built for the pure joy of play, the way the web used to feel.

Visit site ↗
gettextstar.com

TextStar

A simple editor for serious writing. TextStar clears away everything between you and the page. No clutter, no noise, no distractions. Just a calm, focused space designed for people who write for real.

Visit site ↗
nimlo.org

Nimlo

Browse lightly. Nimlo is an open-source browser engineered in Zig for performance, privacy, local control, and AI-free browsing. No telemetry, no forced accounts, no corporate clutter. The web the way it used to be. Experimental builds are available now for Apple Silicon Macs.

Visit site ↗
Available on the App Store App Store ↗

Eira

A private AI assistant for iPhone, powered on device by a local LLM. No account, API key, network, or third-party AI server required. Your conversations stay on your device.

Visit site →
Available on the App Store App Store ↗

Jix

Unscramble, think, and win every day. Jix is an iPhone word jumble with four quick rounds, instant tile feedback, streaks, and one final word to crack.

Visit site →