iOS & Android apps
One React Native or Flutter codebase, native-feeling on both platforms, released to both stores.
Mobile App Development
Mobile apps users actually keep installed
Shipping to the stores is the easy part. We build apps that survive real conditions — patchy networks, app review, device fragmentation and users who delete anything that feels slow.
4.8★typical store rating
- 4.8★
- typical store rating
- 2
- platforms, one codebase
- 10–16 wks
- concept to store
- 100%
- offline-capable builds
The challenge
Users install your app,then forget it?
Crashes, slow screens and missing basics like offline mode or notifications push users to uninstall within days.
Talk to our expertsCrashes & bugs
Unstable releases earn one-star reviews that are hard to recover from.
Two separate codebases
Building iOS and Android apart doubles the cost of every change.
No way back in
Without useful notifications, users drift away after the first week.
Our solution
See engagement optionsWhat we build for you
Cross-platform iOS and Android apps with payments, maps, notifications and offline sync — plus the admin panel behind them.
Native modules where needed
Swift and Kotlin work for camera, Bluetooth, background tasks and anything cross-platform can't reach.
User app + admin panel
The app your customers use plus the web back office your team runs it from — designed together.
Payments & subscriptions
Stripe, Apple Pay, Google Pay and in-app purchases with receipts, refunds and renewal handling.
Maps, tracking & geofencing
Live location, routing, ETAs and background tracking tuned so it doesn't eat the battery.
Push & in-app messaging
Segmented notifications, deep links and lifecycle campaigns that bring users back without annoying them.
Offline-first sync
Local storage with conflict resolution so the app keeps working in a basement, a truck or a plane.
Store launch & compliance
App Store and Play submissions, review handling, privacy manifests, and OTA update pipelines.
How it works
From input to result
What comes in on the left, what goes out on the right — and what we build in the middle, connected to the tools your team already uses.
Map your workflow with us- App users
- Payments
- Location & maps
- Your backend
Mobile app
One codebase, iOS & Android
- App Store & Play release
- Push notifications
- Offline sync
- Admin panel
Our process
A simple 5-step process
From first call to production — you see progress every week and know what comes next.
- 1
Product & platform scoping
Feature set, platform strategy, store requirements and the constraints your users actually operate under.
- 2
UX & prototype
Navigation, key flows and a clickable prototype tested on a real device before engineering starts.
- 3
Build in sprints
Fortnightly TestFlight and Play internal builds so you're using the app while it's being made.
- 4
Device QA & hardening
Real-device matrix testing, crash reporting, performance profiling and battery checks.
- 5
Store launch & iterate
Submission, review support, staged rollout, then updates driven by analytics and reviews.
Who it's for
Real solutions for real business needs
If you recognise yourself here, the first call will be a short one — we already know the questions to ask.
Startups
Consumer or B2B apps that need to reach both stores fast without a two-team budget.
Healthcare
Booking, telehealth and patient apps with HIPAA/GDPR-conscious architecture from day one.
Logistics & field teams
Driver, technician and warehouse apps where offline capability isn't optional.
Marketplaces & commerce
Two-sided and retail apps where payments, search and notifications drive the numbers.
Success story
CareConnect — Health & Booking App
Healthcare · USA
Appointment booking plus telehealth video, reminders and a HIPAA-ready backend in one patient app.
- 4.7★
- patient rating
- -45%
- no-shows
- HIPAA
- compliant
Engagement options
Pick the entry point that fits your stage
Start small and prove it, or go straight to the build. Fixed scope, clear deliverables.
App Concept Sprint
One-time · 1–2 weeks
Flows, prototype, platform plan and a costed store-launch roadmap before you commit.
- Clickable prototype
- Platform & store plan
- Timeline & budget range
App Build & Launch
Fixed price · 10–16 weeks
Design, build, QA and store launch of the app plus its admin panel, on both platforms.
- iOS + Android release
- Admin panel included
- Store submission handled
App Care Retainer
Monthly · Ongoing
OS updates, store compliance, new features and crash monitoring after launch.
- OS & SDK upgrades
- Feature releases
- Crash & performance watch
Technologies
Built on proven, well-supported tools
React NativeFlutterDartReactNode.jsSpring BootJavaPostgreSQL
FAQ
Common questions
Quick answers about Mobile App Development. Don't see yours? Ask us directly.
Ask a questionReact Native or Flutter — which do you recommend?
React Native when you already have a React web team or need heavy JS library reuse; Flutter when the UI is highly custom and animation-dense. We recommend one in scoping and explain the trade-off rather than defaulting to a house favourite.
Do we need a separate backend?
Most apps need one, and we build it as part of the project — API, database, admin panel and push infrastructure. If you already have a backend we integrate with it instead.
Who handles the App Store and Play accounts?
You own the developer accounts; we do the submission work under them. That keeps your listings, reviews and revenue in your name permanently.
What if the app gets rejected in review?
It happens, and it's included. We handle the response, the fix and the resubmission — and we design around the common rejection reasons in advance, so it's rare.
Let's build
Get 3 AI & product ideas for your business — free.
Book a discovery call or get an MVP blueprint. No pressure, no jargon — just a clear plan for your idea, workflow or product.
Prefer email? hello@nexalinx.com