Hire mobile app developers
Mobile developers who pick the approach before the framework.
Acasa Labs is a small software team in Surat, India. You can hire a mobile app developer from the team behind Pullsy's native SwiftUI iPhone app and three React Native apps in both stores: GymFast, NoteTube, and Kraftr. We tell you whether your app should be native or cross-platform first, then match you with the developer who built the closest thing.
Trial week first. You own the code.
The problem
You need an app. You are being sold a framework.
Ask five agencies and you will hear five confident answers: Flutter, React Native, Swift, Kotlin, a web app. Each is right for some apps and wrong for others. The cost of picking wrong shows up a year later, as a second codebase nobody planned or a feature the framework fights. You need someone who asks what the app does on the device before saying how to build it.
The role
What your mobile app developer does
- 01
Builds for both stores, or the right one
React Native with Expo when you need iOS and Android from one team, or native SwiftUI when the app lives on iPhone and leans on the platform.
- 02
Wires the app to your backend
Auth, typed API clients, push notifications, deep links, and offline handling for the parts that must work without a signal.
- 03
Handles payments and subscriptions
RevenueCat over StoreKit and Google Play Billing, kept in agreement with web billing if you sell there too.
- 04
Ships and keeps shipping
Store builds, TestFlight and testing tracks, review notes, and releases on a schedule, with crash reports watched after each one.
From production
Mobile apps behind the people you would hire.
A native SwiftUI app for iPhone
PullsyPullsy's iOS app is SwiftUI on iOS 17+, with push notifications when something changes, on the same FastAPI backend as its web app and REST API.
Three apps for staff, members, and trainers
GymFastGymFast's three Expo apps share a token-authenticated mobile API with the web dashboard. Members check in with a QR code, follow workout and diet plans, and see invoices.
AI in the app, keys on the server
NoteTubeNoteTube's Expo app streams grounded chat from a FastAPI service that holds the AI keys, and bills through RevenueCat in agreement with Stripe on the web.
A web studio in your pocket
KraftrKraftr's companion app for iOS and Android gives brands the same studio as the web, on one backend.
Who you get
One developer, and a senior behind them.
We are a small team, not a bench of hundreds. You get a developer who worked on the systems above, and a senior engineer who reviews every pull request before it reaches you. You talk to the developer before you sign, and the trial week shows you how they work in your codebase.
Mobile app skills you can expect
- React Native, Expo, TypeScript
- Swift, SwiftUI
- RevenueCat, StoreKit, Play Billing
- Push notifications, deep links
- Offline storage and sync
- App Store and Google Play releases
- Supabase, FastAPI, or your API
How it starts
A trial week, then your rhythm.
Before day one
A call about the app and its users, ending with a written view on native or cross-platform. You meet the developer before anything is signed.
Trial week
The app building from your repository, or a first screen of a new one, one real ticket, and a test build you can install by the end of the week.
Weeks 2 to 4
Your backlog and your release rhythm, with a short written note each day and a list of store, dependency, or device risks as they find them.
Every month
A review of releases, crashes, and store ratings against the roadmap, and whether the hours still fit.
Risk-free first week: one developer on one defined task. Continue and the week is billed at the normal rate. Stop within the week and you pay nothing.
Engagement models
Three ways to work with a Mobile app developer.
Dedicated developer
Full time on your product, about 160 hours a month
An ongoing roadmap and a backlog that will not run out
$1,500–2,000 a month
Part-time developer
Half time, about 80 hours a month, on fixed days
A product that is live and needs steady work, not a sprint
$750–1,000 a month
Fixed scope
A defined piece of work, priced before we start
A feature, a migration, or an MVP with a clear finish line
From $1,500, priced per scope
Time zones
How your day overlaps with ours.
We set our working day around yours, with at least 4 hours of overlap every working day, including a daily call for US clients in their morning. India is on UTC+5:30 with no daylight saving. Here is what that means from where you are.
UAE
Dubai
Your 08:30–17:30 is our 10:00–19:00
IST is 1 h 30 min ahead
Your whole working day
Work like a team in the next building. Calls any time in your day.
UK
London
Your 09:00–13:00 is our 14:30–18:30 (13:30–17:30 in summer), longer on request
IST is 5 h 30 min ahead (4 h 30 min in British Summer Time)
At least 4 hours
Standup at the start of your day, pairing until your lunch, a written update before you log off.
Australia
Sydney
Your 13:00–17:00 is our 08:30–12:30 (07:30–11:30 in summer)
IST is 4 h 30 min behind (5 h 30 min in Australian summer)
At least 4 hours
We start early so your afternoon is shared. The work lands before your next morning.
US East
New York
Your 08:00–12:00 is our 18:30–22:30 (17:30–21:30 in summer)
IST is 10 h 30 min ahead (9 h 30 min in US summer)
At least 4 hours, with a call every working day
A call at the start of your day, and a pull request waiting each morning that was built while you slept.
US West
San Francisco
Your 08:00–12:00 is our 21:30–01:30 (20:30–00:30 in summer)
IST is 13 h 30 min ahead (12 h 30 min in US summer)
At least 4 hours, with a call every working day
We shift late for your morning: a daily call, then the work continues through your afternoon.
Ownership
You own the code.
- Repositories sit in your GitHub or GitLab organization from the first commit.
- Cloud accounts and credentials are yours; we work with access you grant and can revoke.
- If you stop, nothing is held back: the code, the docs, and the deploy steps stay with you.
Honest trade-offs
When you should not hire a mobile app developer from us
If your app is in Flutter, or needs a native Android specialist in Kotlin, hire that specialist; our Android work is React Native and our native work is iOS. If your users never need a store app, a fast web app may be all you need. And if you want a single app built with a clear end, a fixed-scope project costs less than a monthly hire.
Proof
Read the case studies before you hire.
- 01PullsyInstagram analytics that keep the numbers Instagram throws away.Live
- 02GymFastMembers, billing, classes, and workout plans for a gym, in one platform and three apps.Live
- 03NoteTubeA lecture becomes a study system: chat, flashcards, quizzes, all grounded in the source.Live
- 04KraftrOne flat-lay photo becomes catalog-ready 4K on-model imagery.Live
Questions
Before you hire a Mobile app developer.
Native or cross-platform for our app?
Cross-platform for most business apps that need both stores. Native when the app is built around platform features or ships on one platform. We give you a written view after the first call.
Can you build both the app and the backend?
Yes. Our apps run on FastAPI, Supabase, and Next.js backends we built. A full-stack developer or a second engineer can join for the backend.
Who owns the app store accounts?
You do. Apps are published under your developer accounts, and we work with access you grant and can revoke.
Can you take over an app another team built?
Yes. We build it, read it, check crash reports and dependencies, and write down what we find before changing anything outside the ticket.
Do you build Android apps?
Yes, with React Native. GymFast, NoteTube, and Kraftr are on Google Play. We have not shipped a native Kotlin app.
Hire mobile app developers
Tell us about the app.
Who uses it, what it does on the phone, and what exists today. Trial week first. You own the code.