Primal Engine

Software studio · San Diego

Built to
work.

Field-ready web apps that work offline, load fast and do one job well.

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Looking for DeadZero? It moved to getdeadzero.com →

Products

What we've shipped

DeadZero comparing candidate and recommended zeros for a .308 Win 168 gr load on silhouette targets

DeadZero

Ballistic zero & come-up calculator

Pick a load and an optic, and DeadZero finds the zero that keeps every shot in the vital zone — then gives you the come-ups, wind and a printable confirmation sheet. Free, and it works with no signal.

  • Point-blank zeros, MOA/MIL come-ups, wind and spin drift
  • Terminal charts and a self-defense gel-test panel
  • Installs like an app and runs fully offline

React · Offline PWA · G1/G7 ballistics engine

Open DeadZero
Little Trippy showing the current forecast, weather details and a 24-hour temperature chart

Little Trippy

Weather for every stop and every mile between

Add your stops and dates, and Little Trippy forecasts the days you'll actually be at each one — plus snow, ice, wind and alerts on the road between them, and a packing list built from the numbers.

  • Forecasts per stop, weeks out
  • Drive conditions from state 511 road feeds and NWS alerts
  • One-time Trip Pass — no accounts, no subscriptions

React 19 · Node/Fastify API · Stripe

Visit Little Trippy
~12Live data sources behind Little Trippy
0Accounts or subscriptions required
100%Of DeadZero works offline

Capabilities

What we build

Installable web apps

Progressive web apps that install from the browser, open instantly and keep working when the signal drops.

Data-heavy tools & APIs

Calculation engines and APIs that pull many sources together, with caching, rate limits and fallbacks.

Fast, accessible front ends

Responsive interfaces that load fast, work with a keyboard and read clearly in the field.

About

One builder, start to finish

Primal Engine is run by Jordan Cordova, a San Diego developer with more than a decade of experience building ColdFusion and SQL Server applications for a large healthcare organization.

Every Primal Engine product is designed, built, shipped and supported by the same person — from the data model to the checkout page.

Contact

Have a project?

Questions about DeadZero or Little Trippy, or something you'd like built — send an email.

info@primalengine.com