Cross-platform apps
One codebase for iPhone and Android with Flutter or React Native, which is the fastest and most affordable route for most products.
- Flutter
- React Native
- Shared design system
Mobile App Development Company
Mobile apps your users keep opening
We design, build and launch iOS and Android apps, from a first version that proves the idea to a product with paying users.
- Free consultation
- Fixed-price quote
- You own the code
Most app projects go wrong before the first line of code: the scope is the whole vision, the budget is a guess, and nobody has decided what version one must do. We start by cutting the idea down to the screens a user needs on day one, price that, and build it properly, with the backend, admin tools and analytics it needs to grow.
Our team has shipped apps for health, travel, automotive marketplaces and HR, on Flutter, React Native and native Swift and Kotlin. You talk to the engineers building your app, you own all of the code, and we stay on after launch for updates, store reviews and new features.
What we build
What we build for iOS and Android
Native iOS and Android
Swift and Kotlin builds when an app depends on heavy device features, background processing or platform-specific UX.
- Swift / SwiftUI
- Kotlin
- Device APIs
MVPs for startups
A focused first version that proves demand, with the analytics to show what users actually do.
- Scope workshop
- Clickable prototype
- Launch in weeks
Backend and admin panel
The APIs, database, authentication and admin dashboard behind the app, built by the same team.
- Node.js APIs
- Admin dashboard
- Push notifications
Payments and marketplaces
Subscriptions, in-app purchases, escrow and split payments, built to App Store and Play Store rules.
- Stripe
- In-app purchases
- Escrow flows
Launch and maintenance
App Store and Play Store submission, crash monitoring, OS updates and new releases after launch.
- Store submission
- Crash reporting
- Monthly releases
Ready when you are
Have a project in mind? Let's scope it together.
Tell us what you want to build. We reply within 24 hours with honest advice, a timeline and a fixed-price quote.
Get My Free Quote24-hour response · No obligation
How we work
How we take an app from idea to the App Store
- Step 1
Scope and price
A short workshop to agree the users, the core screens and what version one leaves out. You get a fixed-price quote and a timeline.
- Step 2
Design
Wireframes, then a clickable prototype you can put in front of real users before development starts.
- Step 3
Build in sprints
Two-week sprints with a test build on your phone after each one, so you see progress instead of status reports.
- Step 4
Test and launch
Device testing, store listings and submission. We handle App Store and Play Store review feedback.
- Step 5
Support and grow
Crash monitoring, OS updates and a backlog of improvements based on what users do.
Technologies we use
- Flutter
- React Native
- Swift
- Kotlin
- Node.js
- Firebase
- Supabase
- PostgreSQL
- Stripe
- Figma
Proof, not promises
Products we have shipped
Mobile marketplaceCar BlockPeer-to-peer car marketplace with AI VIN scanning and escrow-protected payments.Read the case study Travel-tech appSIMLESBuy, install and manage eSIM data plans for 190+ countries in one tap.Read the case study Health appHealthiPlateNutrition app for tracking meals and personal health goals on iOS and Android.Read the case study SaaS + employee appTracefyHRiOS and Android employee app with offline check-in, leave requests and payslips.Read the case study
Testimonials
What Our Clients Say
Discover what our clients think about our services and how we've helped them achieve their goals.
fiverr
AJ
Angelique Jones
CEO, Tech Innovations
fiverr
D
Don
CTO, DataFlow Systems
Upwork
DevEntia Tech delivered beyond expectations! The team handled our web app project with precision, clear communication, and creative solutions. Every milestone was completed on time with exceptional quality.
OB
Olivia Bennett
Startup Founder
Upwork
DevEntia Tech's UI/UX services are top-notch. They transformed our outdated website into a modern, user-friendly experience.
ER
Emily Rodriguez
E-commerce Director
Fiverr
Abdul, Zubair Khan from DevEntia Tech and their team went above and beyond to deliver our custom-built Web3 website. Their professionalism, reliability, and communication were exceptional. Highly recommended as a long-term tech partner!
D
Don
Client from Australia
Fiverr
Abdul and his team at DevEntia Tech are talented, knowledgeable, creative, and kind. Working with them was an absolute pleasure — they delivered exactly what was needed with great attention to detail.
AJ
Angelique Jones
Client from USA
Upwork
Zubair Khan from DevEntia Tech was a fantastic addition to our Android team. His technical skills are top-notch, communication was clear, and collaboration effortless. Highly recommended!
JA
James Anderson
CEO
Upwork
Working with Zubair Khan from DevEntia Tech was an absolute pleasure. His professionalism, creativity, and technical expertise made our website both beautiful and functional.
PR
Pinny Rozen
SaaS Founder
Upwork
Their expertise in React and Next.js is outstanding. DevEntia Tech delivered a lightning-fast, SEO-optimized website.
WD
William Davis
Tech Lead
Upwork
Exceptional Experience – Highly Skilled & Professional Developer. Zubair Khan from DevEntia Tech demonstrated deep knowledge in Flutter, React.js, and Node.js. Clear communication, timely delivery, and smart problem-solving throughout.
RO
Resul OEzer
CEO
Upwork
Zubair Khan from DevEntia Tech delivered exceptional work on the design and development of my app. His communication was excellent and he consistently met deadlines.
HS
Honey Singh
SaaS Founder
Upwork
Zubair Khan from DevEntia Tech has been an incredible asset as a senior developer. He works fast, pays close attention to detail, and genuinely cares about project success.
AM
Angel Mojarro
SaaS Founder
Upwork
Highly talented developer. Zubair Khan from DevEntia Tech understood our requirements perfectly, communicated progress regularly, and delivered high-quality code. Will hire again!
R
Richmond
CEO
Upwork
Zubair Khan from DevEntia Tech and his team have been a pleasure to work with. Excellent communication and strong delivery — highly recommended!
NS
Nabeel Sharif
CEO
Fiverr
Abdul was awesome and he and his team from DevEntia Tech worked until the delivery met our expectations. He is polite, quick to solve problems, and ensured top-quality results.
S
Shabbir
Client from Singapore
Fiverr
The work by Abdul and Zubair Khan from DevEntia Tech demonstrated a high level of professionalism — completely error-free and beyond expectations. Communication was proactive and clear throughout. Outstanding job!
AM
Angel Majerro
Client from Spain
Pricing
What it typically costs
Cross-platform MVP
$25k–$60k
10–14 weeks
Polished v1
$80k–$180k
4–6 months
Native iOS + Android v1
$150k–$400k+
5–9 months
Typical ranges for projects we quote. Your price depends on scope, and after a short scoping call you get a fixed-price quote that does not change during the build.
Where we work
Mobile App Development for clients in
FAQs
Mobile App Development: common questions
Still unsure? Book a free 30-minute call and get a straight answer for your project.
Talk to an EngineerHow much does it cost to build a mobile app?
It depends mostly on scope. A focused cross-platform MVP usually sits between $25k and $60k and takes 10 to 14 weeks. A polished first version with more screens, payments and an admin panel is typically $80k to $180k. We give you a fixed-price quote after a short scoping call, so the number does not move during the build.
Flutter, React Native or native?
For most business apps, cross-platform (Flutter or React Native) is the best value because one codebase serves iPhone and Android. We recommend native Swift and Kotlin when the app leans on heavy device features or platform-specific behaviour. We explain the trade-off for your app before you commit.
Do I own the code?
Yes. You own all source code, designs and store accounts from day one. Everything lives in your repositories and your App Store and Google Play accounts.
Will you publish the app to the App Store and Google Play?
Yes. We prepare the store listings, handle submission and respond to review feedback until the app is live.
Can you take over an app another team started?
Yes. We start with a code and architecture review, tell you honestly what is worth keeping, and give you a plan to stabilise it before adding features.
What happens after launch?
Most clients keep us on a monthly plan for crash fixes, OS updates and new features. You can also take the code in-house at any time.
Guides from our blog
Let's build it
Start your mobile app development project
Tell us what you need. We reply within 24 hours with honest advice, a clear timeline and a fixed-price quote.
Start Your ProjectFree consultation · You own the code
What happens next?
- Our expert will follow up after reviewing your needs.
- If required, we’ll sign an NDA to ensure privacy.
- Our Pre-Sales Manager will send you a proposal.
- Then, we get started on your project.
Let's Connect
Send a Message[email protected]
Call Us Directly+44 7863 374791 (London)+92 343 4417696 (Islamabad)
Ready to Build & Scale?
Schedule a consultation or get a quote