Mobile App Development with Expo & React Native
Ship to iOS, Android, and Web — From One Codebase.
Sleek App is a technical partner that builds production mobile apps with Expo and React Native — App Store, Google Play, and web — without doubling your engineering team.
Book Your Free ConsultationOne codebase. Two stores. Native feel. Only 5 spots available this month.
Your App
Built by Sleek App
Welcome back
Your customers, in their pocket.
iOS + Android
One codebase
Push notifications
Native re-engagement
OTA updates
Ship without review
Home
Discover
Profile
The Mobile Disconnect
Your customers live on their phones. Your product doesn't.
A mobile-friendly website isn't a mobile app. Push notifications, biometric auth, offline mode, deep links don't work in a browser tab. And every week without a native experience is a week your users churn to a competitor who has one.
No re-engagement
Web has no push channel. You email. They ignore.
Slower load, worse UX
Mobile web is fast. Native is faster, smoother, and feels like the platform.
Missing from the home screen
An icon on the home screen is 10× the brand presence of a bookmark nobody uses.
The Cost of Native — The Old Way
Two codebases. Two teams. Twice the bugs.
Native Stack (Old Way)
📱
🤖
💻
3 codebases
Swift + Kotlin + Web — 3 hires, 3 release cycles
Expo + React Native (New Way)
1 codebase
Ship iOS, Android, and Web from the same React tree
Same shipping power. A fraction of the engineering cost.
The Pivot
From web product to native experience — without rebuilding from scratch.
At Sleek App, we don't hand you a wireframe and disappear. We map the native version of your product against your existing web stack, then ship both using the same React patterns your team already knows.
Map My Mobile AppShared business logic between web and native
Type-safe API contracts that survive both targets
OTA updates so most ships skip App Store review
Real device testing on iOS + Android every sprint
How It Works
The 3-Step Sprint
STEP 01
Architecture Map
We audit your product, design the native architecture, and lock the scope of your MVP in a single working session.
STEP 02
2-Week Build Sprints
Every two weeks we ship a real Expo build to your phone so you can see and test progress, not only endless demos.
STEP 03
Submit, Ship, Iterate
We handle App Store + Google Play submission, then keep iterating with OTA updates so your roadmap moves at web speed.
Bonus Stack
What you also get with Expo
Push Notifications
Re-engage users with native, segmentable, opt-in push.
Over-the-Air Updates
Ship JS + asset updates instantly. Skip review for most changes.
Deep Links & Universal Links
Send users straight to a screen from email, SMS, or QR.
Native Hardware Access
Camera, biometrics, location, contacts — everything native.
Investment
What it pays back
Engineering Team Size Avoided
1 cross-platform team vs. 2 native teams
+$12,000/mo
Faster Release Cadence
OTA updates skip App Store review queues
+10× ships
Re-engagement Channel Unlocked
Push opens convert at 5–10× email
+$3,500/mo
Projections based on 2025–2026 industry averages. See References.
Guarantees
Risk lives on our side of the table
7-Day Refund
If you aren't 100% satisfied in the first 7 days, we'll refund your deposit in full, and you keep the Architecture Map we built for your brand.
Code You Own
Every line of code, asset, and CI pipeline ships to a repo you own. No lock-in. No proprietary platform fees.
Senior Engineering, Always
You work directly with senior engineers with years of experience — never juniors-with-a-PM.
Limited Availability
We take 5 mobile builds per quarter.
Mobile work is hands-on. We cap intake at 5 active builds per quarter so every project gets dedicated engineering time.
FAQ
Frequently Asked Questions
Will it look and feel native?
Yes. Expo apps run on native iOS and Android runtimes with platform-appropriate gestures, navigation, and animations. Users won't be able to tell it's React Native.
Can you push updates without going through app review?
Yes. Expo Updates lets us push JavaScript and asset changes over-the-air, so most fixes and feature tweaks ship to your users in minutes, not days, waiting for App Store review.
How long does an MVP take?
Most MVPs ship in 8-12 weeks. We start with an Architecture Map session, then break the build into 2-week sprints with shareable preview builds at every step.
Final Word
You don't need a bigger team. You need the right one.
“Your customers are already on their phones. The question isn't whether you ship a mobile app; it's whether you ship one before they pick a competitor who already did.”
Book Your Free ConsultationReferences
1. Platform & Engagement
App Annie / data.ai State of Mobile; Apple App Store + Google Play developer reports; Expo platform documentation.
2. Engineering Cost
Stack Overflow Developer Survey; Levels.fyi compensation data; internal cost modeling for cross-platform vs. native teams.
3. Push & Re-Engagement
Airship Mobile Engagement Index; Braze Customer Engagement Review; OneSignal benchmarks.
All projections are based on 2025–2026 industry averages.