React Native Community CLI
Command line tools to help you build React Native apps
What you get
Where the minutes actually go: measured, not guessed.
Compilation and dependency caches shared across CI and developer machines.
Suites split, sharded, and balanced across runners.
Machine classes matched to workloads, with Apple silicon where it pays.
Only affected tests and targets run per change.
Build-time budgets enforced in CI, so speed does not erode back.
How we work together
Our senior engineers join your team to ship features, guide technical decisions, and strengthen delivery.
We take agreed work from technical planning to release, with clear responsibilities and progress you can see.
We address a performance, migration, or infrastructure challenge, or run training around your team’s needs.
Case studies




Build & Test Acceleration
Measured acceleration across build and test, with budgets that keep it fast.
We had been struggling with React Native application performance until we met Callstack.

We’ll connect you with the right expert within 24 hours.
Still have questions?
Starting points vary too much for one number, but native build caching and test sharding routinely cut feedback time by half or better. The profiling phase quantifies it for your pipeline first.
Yes. Affected-target detection and per-package caching are exactly where monorepos win back the most time.
Yes. iOS and Android compilation, dependency prebuilds, and CI cache design for native artifacts are core to this work.
A fraction of what it saves in runner minutes and engineer wait time. We include the infrastructure cost in the before/after math.
Yes. Acceleration applies whether you build on EAS, hosted CI, or your own runners - the techniques move with you.
Build-time budgets in CI fail a PR that regresses the pipeline, the same way a failing test would.