iOS & Android
Native builds in Swift and Kotlin where the platform genuinely matters.
Service 02
App development
From the first version that proves the idea to the release that survives an OS update. We build the app, the backend behind it, and the pipeline that gets it into the stores.
Sub-services
What's included.
Every line below is something we do in-house. Take the whole service or one piece of it.
Cross-platform apps
One React Native codebase, both stores, shared logic and a shared release cycle.
MVP builds
The smallest app that answers your riskiest question, in weeks rather than quarters.
App backends & APIs
Sync, offline handling, real-time updates and push notifications.
Auth & payments
Sign-in, subscriptions, in-app purchase and wallet integrations.
Store submission
Listings, screenshots, review responses and staged rollouts.
Analytics & crash reporting
Know what users did and what broke before they email you about it.
Maintenance & OS updates
Keeping the app alive through every platform release and SDK deprecation.
Process
How we run it.
- 01
Scope
We cut to the flows that matter and agree the release plan before any code.
- 02
Shape
Clickable prototype on a device, not a desktop mockup of a phone.
- 03
Build
Weekly TestFlight and internal-track builds you can install and use.
- 04
Ship
Store submission, rollout, monitoring, and the first round of iteration.
Stack
What we build with.
Chosen per project — this is what we reach for most.
- React Native
- Swift
- Kotlin
- Expo
- Node
- Firebase
- Supabase
- RevenueCat
- Sentry
- App Store Connect
- Play Console
FAQ
Questions we get asked.
Native or cross-platform?
Cross-platform for most products — it halves the cost and the release overhead. Native when you're leaning on hardware, background behavior or platform APIs that don't translate.
Do you handle the store accounts?
We can build and submit under your developer accounts, which is what we recommend — the listings and the app stay yours.
How long does review take?
Usually one to three days per submission. We plan launch dates with that built in, and handle rejections if they come.
Can you take over an existing app?
Yes, after a code review. We'll tell you honestly whether it's cheaper to continue or to rebuild.
Also on this junction
The other lines.
Tell us the riskiest
thing about your idea.
Thirty minutes. We'll tell you what we'd build first, what we'd cut, and roughly what it costs. No deck.
Book the call→Or email hello@devjunction.co