Mobile app development SERVICES
We help companies design, build, and scale mobile apps that deliver measurable business results — delivered by dedicated senior teams.
- Built mobile apps for Microsoft, AT&T, and Royal Caribbean
- Senior engineers who think beyond code and contribute to your product
- Built AI-powered and complex mobile apps used by 1M+ users and generating $100M+ in cost savings


You’ll be talking with our technology experts.
Trusted by market leaders
What we can do for you
Build a mobile app from scratch
Native iOS, native Android, or cross-platform — we scope the right approach for your product and build it end-to-end. Architecture, AI-driven development, testing, and App Store submission: we handle the full process so you don’t have to piece it together yourself.
Upgrade or rescue an existing mobile app
If your app has hit a performance ceiling, accumulated technical debt, or needs new capabilities added without breaking what’s already working, we come in and fix it properly. We’ve taken over codebases in poor shape before. We know how to stabilize first, then improve.
Extend your mobile app development team
When your in-house team needs depth it doesn’t have — native iOS specialists, Android experts, reactive programming experience — we slot in. No months-long onboarding. No agency overhead.
Lacking the right mobile talent? Our experts will help you out — Let’s talk about your project →


OUR MOBILE APP CASE STUDIES

Scaled a 21 senior mobile team for a leading telco software vendor →
We scaled a global tech leader’s mobile engineering from a small iOS team to 21 engineers across four platforms, becoming fully integrated after strict due diligence and delivering reliable end-to-end support.
Industry
Telecom
Location
UK
Co. type
Enterprise

Built a mobile app for 70,000 Royal Caribbean crew across 40 ships →
We built a mobile app that brings crew communication, scheduling, and daily tasks into one place. Using React Native and Java Spring Boot, we designed the app to work reliably even offline, giving crew access to essential tools no matter where the ship is sailing.
Industry
Hospitality
Location
US
Co. type
Enterprise

Built a cross-platform fintech app in 5 months →
By partnering with rightvybe, we helped build the world’s first savings app that introduces positive energy as a reward currency.
Industry
Fintech
Location
UK
Co. type
Startup

Embedded 8 engineers into a global analytics company’s mobile SDK team →
We embedded eight engineers directly into a global customer experience company’s mobile organization, contributing across iOS, Android, React Native, Flutter, and webview integrations over three years of ongoing delivery.
Industry
User analytics
Location
France
Co. type
Enterprise
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THE TECH WE USE
iOS native
Swift
Objective-C
MVVM-C architecture
RxSwift
Combine
Android native
Kotlin
Java
MVVM architecture
RxJava
Flow
Coroutines
Cross-platform
Flutter
React Native
Kotlin Multiplatform
Great, but why DECODE?
Here’s why you should hire us for your mobile app development needs:
Product-minded engineering
Our engineers think beyond code. They look at the product, the user, and the problem you’re solving, then make technical decisions that support real outcomes. This approach leads to smarter solutions and software that moves your business forward.
Technical project managers
Our PMs have real technical experience, so they understand how the product is built, not just how to track it. They estimate accurately, offer solutions, and connect your business goals with the technical details that support them. This leads to smoother collaboration, faster decision-making, and better outcomes.
1 Project – 1 team
Whether it’s one expert or a dedicated team, you’ll have their full focus from start to finish. By avoiding context switching, engineers build a deeper sense of ownership, something you’ll notice within the first few weeks of working with us.

What that means for you
- A team fully focused on your project
- Predictable, high-quality delivery
- Elite engineers you can rely on
- Product-driven technical decisions
This could be the start of a great partnership
Want to get in touch? Just fill in the short form below, or skip to the bottom to arrange a chat direct with our client strategy specialist. Either way, we’ll be back in touch as soon as we can to arrange an informal call.
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Arrange a chat with Ivor, our client strategy specialist.
Still unsure about something?
Don’t worry, whatever it is, we’ve got you covered in our FAQ.
You’re not required to prepare anything – you can simply bring your idea and goals.
But, to make the first call more productive and get the most value, it helps to share:
- A short technical brief or product description outlining key features or functionality
- Examples of similar apps or solutions in your space
- Any designs, wireframes, or product roadmap you may have
- Constraints or priorities such as budget, timeline, or critical technical considerations
The more context you give us, the quicker we can spot challenges, share actionable insights, and suggest the right next steps during our first meeting.
Team-based engagements
- Team extension – Expand your in-house team with experienced developers.
- Dedicated team – A fully dedicated team that can handle all phases of the development process, from planning to delivery.
- Build-Operate-Transfer (BOT) – We build and operate a team for you, then transfer full ownership.
Project-based engagements
- End-to-end projects – We handle the full lifecycle of your product from concept to launch.
- Proof of concept – Validate your ideas quickly with a working prototype.
- Pilot projects – Test a small-scale version of your product before scaling.
Yes.
You can grow the team when you need more speed or expertise, and scale it down when the workload is lighter. We adjust the setup with you so the team always matches your goals and budget.
Yes, dedicated teams are designed to work collaboratively and integrate seamlessly with your in-house staff.
Our dedicated team can adjust to your workflows and processes and will feel just like an in-house team in no time.
We build both.
If you need maximum performance, we’ll build your app natively for iOS and Android. If speed and cost matter more, we can go cross-platform instead.
Either way, you’ll get the approach that fits your product best.
Definitely. Full outsourcing isn’t your only option.
Many companies outsource specific parts of the process depending on what they already have in place.
For example, you can hire an external team to handle QA testing, build the backend, or create your app’s UX/UI design.
Or, if you already have an in-house core team, you can bring in outside developers or specialists through staff augmentation to handle short-term needs or fill skills gaps.
This kind of hybrid setup gives you flexibility without the commitment (or cost) of hiring a full in-house team from day one.
Not for the majority of companies at the moment.
AI increases the effective capacity of your existing team, but the gains require experienced engineers to supervise, review, and make architectural decisions.
The better frame is: AI changes what you need to hire for and when.