●Zima Logistics
Zima Logistics / Mobile app studio / Boulder, CO

Small, fast, private
mobile apps.
Built to last.

We design and ship our own iOS and Android apps — 12 live on the App Store and Google Play — and build custom mobile software for clients and U.S. government agencies.

See the apps → Work with us

Apps

12 live · 12 iOS · 3 Android
BugOut: Prep and Test
Emergency preparedness in your pocket. Offline survival guides, bug-out checklists, no signal required.
iOS ↗ Details →
CAD Translator
Translate CAD layer naming conventions between NCS, IEC, NEC standards. Built for engineers and architects.
iOS ↗ Details →
Contractor Calc Pro
10 construction calculators in one app. Gutter, septic, drywall, rebar, stairs and more. All offline.
iOS ↗ Details →
Forge — Developer Toolkit
Offline developer reference. Regex, Git, HTTP codes, APIs — everything you reach for daily, always available.
iOS ↗ Details →
Lift: Gym Tracker
Log your workouts, track your progress, build better habits. No subscription, no account required.
iOS ↗ Details →
MySpoons
The most complete personal health tracking app for iPhone. Organized, on time, beautifully logged.
iOS ↗ Details →
OSHA Reference
Complete OSHA safety standards at your fingertips. Built for workers and safety officers on the job site.
iOS ↗ Details →
Ranked Choice: Group Vote
Make better group decisions. Add options, rank them, let the math pick the winner.
iOS ↗ Details →
Splitr: Run Calculator
The fastest way to go from distance + time to pace, speed, and splits.
iOS ↗ Android ↗ Details →
Welding Reference Pro
Settings calculator, electrode guide, symbol decoder, joint prep, and CWI exam prep. All offline.
iOS ↗ Details →
Zima: Ballistics Calculator
Long-range shooting calculator for hunters and competitive shooters. Trajectory, wind drift, bullet drop — offline.
iOS ↗ Android ↗ Details →
Zima: Offline AI
A full AI assistant that runs entirely on your iPhone. No internet, no account, no data leaves your device.
iOS ↗ Details →
About

Zima Logistics is a Boulder, Colorado software studio. We own and operate a catalog of focused utility apps on iOS and Android — reference tools, trade calculators, productivity helpers — and we take on custom development work for clients who want the same standard applied to their own software.

Every app we publish is built on the same principles: respect the user's time, respect the user's privacy, and make something durable enough to still be useful in five years.

Services

For clients & agencies

Custom mobile apps

Native iOS and Android development for companies that need a real app, not a wrapped website. Privacy-first, offline-capable, built to last.

Marketing & growth

App Store Optimization, paid acquisition, and lifecycle analytics for mobile products — the same playbook we use for our own catalog of 12 live apps.

Government contracting

Registered in SAM.gov for federal and state work — custom software, equipment resale, and consulting engagements under established NAICS codes.

Start a project → Government services