React Native Paper
Material Design for React Native (Android & iOS)
Expensify uses agent-device. Mobile bug evidence and profiling are part of its documented usage story.
What you get
A stable host shell handles routing, layout, and runtime loading of mini apps, each owned, built, and deployed by a separate team.
Push fixes, features, and new mini apps with no store review or full release. Southern Glazer's cut releases from weeks to seconds.
Each mini app runs in an isolated, sandboxed environment, so independently built modules stay safe from one another.
Expose APIs, shared libraries, and contracts so external teams ship updates without conflicts or touching the host.
Validate the super app model against your product in one sprint: a working host-and-mini-app setup on Re.Pack, plus a scaling roadmap.
Clear structure, docs, and naming conventions so your team takes over with confidence and owns the platform after handover.
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




Super App Development
We design and build modular, production-ready super apps, for independent teams and faster releases. Let's scope yours.
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?
Yes. Super apps are built to evolve. You start with a modular host shell and a first mini app, then add new features or services independently as your product grows.
Each mini app is owned, built, and deployed by a separate team, and the host loads the latest approved version at runtime. Teams ship fixes, features, and new mini apps with no store review or full release.
That's what the model is for. We expose APIs, shared libraries, and contracts so external teams ship updates without conflicts or touching the host.
Yes. The setup supports both monorepo and multi-repo models, so teams can structure and collaborate on code the way that fits them.
We use shared contracts so the host only loads compatible mini apps, and each mini app runs sandboxed so independently built modules stay safe from one another.
No. Mini apps load on demand, so users only download what they need and the app stays light.
Yes. In one sprint we deliver a working host-and-mini-app setup on Re.Pack, plus a scaling roadmap, so you can validate the model against your product before going further.
Agents move the work forward while our experts make the calls, so engineers direct the build and own every decision. The same sandboxing that isolates mini apps keeps independently built modules safe from one another.