Apps that earn a place on the home screen.
Cross-platform iOS and Android apps that feel genuinely native — with offline-first sync, push notifications, biometric sign-in, and a release pipeline that makes shipping routine.
React Native / Swift / Kotlin / offline-first / App Store & Play Store
Your customers are already on their phones. The question is whether your app is one they keep.
The home screen is the most contested space your brand will ever occupy. An app stays there when it's fast, feels native, works without signal, and respects the person holding it — and gets deleted the moment it doesn't. We build the kind that stays: quick to open, obvious to use, and quietly excellent in the moments that decide whether it survives the first week.
Pocket-sized, purpose-built.
Whatever the shape, the craft is the same — and it ships to both stores from one codebase.
Consumer apps
The product you put in front of the public — built to delight and to convert.
Field & operations tools
Offline-first apps for teams who work where the signal doesn't reach.
Internal apps
The tool your staff carry in their pocket — fast, focused, and theirs.
Companion apps
A mobile front for your existing product, in step with the web.
On-demand & marketplace
Two-sided apps with maps, payments, and real-time updates.
Client-facing portals
Where customers check status, upload, and message — on the go.
React Native, Flutter, or native? Let's decide together.
There's no single right answer — only the right answer for your team, your timeline, and where performance actually matters. Here's how we think about it.
React Native
Our default. One codebase, a vast ecosystem, and a near-native feel — with the freedom to drop into Swift or Kotlin for any screen that needs it. The fastest path to a great app on both stores.
Flutter
When you want pixel-perfect, brand-bespoke UI that looks identical on every device. A single rendering engine gives you total control of the canvas, ideal for highly custom, motion-rich interfaces.
Native iOS / Android
When you need every last frame, the newest OS feature on launch day, or heavy on-device work — AR, ML, low-level audio or video. Two codebases, maximum control, no compromises.
Not a website in a shell. A real app.
Sharing code is a means, not the goal. We keep the 90% that benefits in one codebase and reach for native exactly where a person would feel the difference — so the result is indistinguishable from an app written by hand for each platform.
- 0160fps animations and gestures that feel right
- 02Platform-correct navigation and components
- 03Native modules for camera, sensors, and heavy work
- 04Haptics, transitions, and the small details people feel
A basement, a warehouse, a tunnel — it keeps working.
For field teams and travellers, signal is a luxury, not a guarantee. Offline-first means the app never stops because the bars dropped — it just catches up when they come back.
- 01
Read & write locally
The app works fully with no connection, straight from an on-device store.
- 02
Queue every change
Edits are recorded and held, in order, while you're offline.
- 03
Sync & resolve
When signal returns, changes sync and conflicts resolve — nothing lost.
Everything a phone can do, used well.
The capabilities that separate an app from a bookmark — wired in cleanly, asked for at the right moment.
- 01
Push notifications
Timely, targeted, and deep-linked straight to the right screen.
- 02
Deep linking
A tap from anywhere opens exactly the right place in the app.
- 03
Biometric auth
Face ID, Touch ID, and fingerprint sign-in, done securely.
- 04
Camera & media
Capture, scan, and upload, with the native pickers people expect.
- 05
Location & maps
Live location, geofencing, and routing where the app needs it.
- 06
Background sync
Data and uploads that keep moving while the app is closed.
- 07
In-app payments
Stripe, Apple Pay, Google Pay, and store billing where required.
- 08
Over-the-air updates
Ship most fixes instantly, without waiting on store review.
The test is the thumb.
A great mobile app proves itself in seconds of use — one-handed, glancing, half-distracted. That's the bar we build to.
A release should be a button, not a ritual.
Getting an app into the stores — and keeping it updated — is its own craft, full of small traps. We handle the whole pipeline so launches are calm and updates are routine.
- Signing, certificates, and provisioning set up properly
- App Store and Play Store listings and assets
- Review navigated — including the parts that trip teams up
- CI that makes every build reproducible
- TestFlight and Play internal testing for your team
- Staged rollouts with an instant rollback
In testers' hands early, improving every week.
Discovery & platform call
We learn the product and the people, then decide together: React Native, Flutter, or native.
Design & prototype
Flows and components designed for thumbs, with a clickable prototype before we build.
Build
App and backend together, shipping to TestFlight and Play testing so you use it as it grows.
Polish & harden
Native feel, offline behaviour, performance, and the edge cases that crash other apps.
Launch & iterate
Store submission, staged rollout, and updates over the air — then we watch the numbers.
You know it's time to go mobile.
Your customers expect an app
Being only on the web is starting to cost you — they want it on the home screen.
Your field team needs offline tooling
Work happens where the signal doesn't. The app has to keep up regardless.
You're weighing RN, Flutter, and native
Good — that's a real decision. Let's make it together, with eyes open.
Modern mobile tools, chosen for the job.
The things teams ask us first.
Let's build an app people keep.
Tell us what your customers or your team need in their pocket. We'll help you choose the right platform and build a mobile app that feels native, works offline, and ships to both stores cleanly.
ReimeiTech builds cross-platform mobile apps with React Native and native iOS / Android — native performance where it matters, offline-first sync, push notifications, biometric auth, and App Store / Play Store release pipelines, with a shared backend behind it all.