Modern apps and AI systemsscalable from day zero.

We design and ship mobile apps and digital tools that are clean, fast, and built for real users, alongside select client builds and AI integrations for small businesses.

zds · ship log
  • speak-faith spoken prayer companion for iOS & Android launching soon
  • stayclear short-term rental compliance, calmly handled in development
  • client-builds custom apps & AI workflow integrations accepting projects

Products

Apps we're building

Lifestyle · iOS & Android

Speak Faith

Pray with intention. A spoken prayer companion that listens as you pray aloud and lights each phrase in sync with your voice, with a prayer library, journal, and gentle reminders. Coming soon to iOS and Android.

Learn more →

Business · In development

StayClear

Stay ahead. Stay compliant. Stay clear. A calm compliance command center for short-term rental hosts: permits, documents, and renewal dates tracked per property, so nothing lapses.

Learn more →

Services

Beyond our own apps

We apply the same product discipline to a small number of client engagements each year.

  • Custom app builds Native-quality iOS and Android apps built with React Native and Expo, from first sketch to store submission.
  • AI integrations Practical AI workflows for small businesses: automation, assistants, and tooling that saves hours, not demos that impress once.
  • Web & digital tools Fast, focused websites and internal tools that do one job well.
  • Product strategy Scoping, roadmaps, and store-readiness for founders shipping their first app.

About

Built to ship

Zero Day Systems LLC is an independent software studio. The name is a promise about architecture: every product is designed to scale from day zero, not retrofitted later. We keep the portfolio small on purpose, so each app gets real attention: clean design, smooth functionality, and respect for the people using it. Our work spans consumer apps, business tools, and AI-powered systems.