Zerokai

Discipline

One mobile app. iOS and Android. One team that owns the outcome.

Most agencies split mobile between two teams or outsource one platform. We don't. A single team builds your app from backend to both stores. Fewer meetings, fewer bugs, faster ship.

What you get

  • Production apps live in the App Store and Google Play
  • A single shared codebase your team can actually maintain
  • Offline-first where it matters, real-time where users expect it
  • Push notifications, biometrics, in-app payments - done properly
  • App Store Optimization (ASO) basics baked in from day one
  • Documented, testable, yours - no vendor lock-in

Right for you if ...

Not sure this is the right engagement? Book a free 30-min call and we will tell you honestly.

  • 01

    You need iOS and Android without paying for two separate teams

  • 02

    You have a web product and want a native mobile companion

  • 03

    Your existing app is crashing, slow, or too expensive to maintain

  • 04

    You are building a consumer product where the app IS the product

What we build

Consumer apps

High-polish, fast, smooth. Users compare your app to the best apps they've ever used. We build to that standard.

B2B & enterprise apps

Field sales tools, logistics trackers, internal comms - apps that get out of the way and let your team do their job.

Mobile-first MVPs

When the product IS the phone app. We scope aggressively, cut everything optional, and ship something real in six weeks.

Greenfield + backend

Most mobile projects need an API, a database, and auth. We build all three - you don't need a separate backend team.

App integrations

Stripe, RevenueCat, Firebase, Google Maps, health APIs, camera, GPS, Bluetooth. Integrations are table stakes for us.

App rescue & rewrites

Buggy React Native app that's too slow and too expensive to maintain? We've seen it. We can fix or replace it.

The stack we reach for

We pick tools to fit the project.

Cross-platform

React NativeExpo

Native (when needed)

Swift (iOS)Kotlin (Android)

Backend

Node.jsGoSupabaseFirebase

Deploy & analytics

EAS BuildApp Store ConnectGoogle Play ConsoleMixpanelAmplitude

How we work

01

Product definition

We map the core user flows and cut everything that isn't them. A clear spec before a single screen is designed.

02

Design & prototype

Interactive prototype in real device constraints. You tap through before we build anything.

03

Build & test

Feature branches, TestFlight and internal Play builds weekly. You see progress, not a reveal at the end.

04

Store launch & handoff

We handle App Store / Google Play submission, review, and release. You own the accounts. We hand over everything.

Right-fit packages

Fixed prices. No hidden fees.

Most popular

MVP Sprint

For founders building their first product

$4,9996 weeks

fixed scope · fixed price

  • Discovery & shaping
  • Design + full build
  • Production deploy + handoff
  • Source code + infra you own forever
  • 30-day post-launch fix guarantee

Engineering Retainer

For after your MVP ships

$3,499per month

pause anytime

  • 2 senior engineers on your roadmap
  • Async-first, weekly demos
  • We work in your repo, your conventions
  • 160 engineering hours, capped
  • 1 week notice to pause

Common questions

Ready to ship?

Ready to scope your idea?

30 minutes. We tell you exactly what your MVP needs and what it will cost. No obligation, no pitch deck.

We take 2 new Sprint clients per month. If we're at capacity, we'll tell you on the call and offer a waitlist.