Services
Mobile App Development
Custom mobile app development for businesses in Trinidad and Tobago and the wider Caribbean. Design, integration and delivery for iOS and Android, from concept through ongoing support.
Plan your app
Your market
Start with the people who will use the app, the devices they rely on and the systems it needs to connect to. Define the first release before choosing a platform.
Discuss your appReview our work
Explore the studio portfolio to assess our design and development work before discussing your product.
View the portfolioWhat we do
Design and prototyping
UI/UX design, consulting and prototyping before a line of production code is written. Cheaper to change a prototype than a shipped build.
Development
Custom iOS and Android applications, native or cross-platform depending on what the product actually needs rather than on what is fashionable.
QA and testing
Automated testing across devices and versions. An app that works on the developer's handset is not a tested app.
After launch
Delivery is not the end of the job. We stay on for support and iteration, because the first release is where you start learning what users want.
Types of apps
Consumer products and internal tools ask different questions of the same process.
Customer-facing apps
Apps your customers download from the App Store or Google Play, for ordering, booking, content or account access. The store listing, the first minutes of use and the reviews matter as much as the feature list.
Enterprise and internal apps
Tools for your own team, such as field work, approvals, inventory or reporting. Secure access and integration with the systems you already run come before visual polish.
Prototypes and first releases
When the idea still needs proving, a clickable prototype and a focused first release test the demand before the full feature list is funded.
What an app does for the business
A new sales channel
Ordering, booking and repeat purchases in a couple of taps, on the screen your customers already hold most of the day. For a business built on repeat custom, that convenience is revenue.
A brand people carry
An icon on the home screen keeps the business in view between purchases, and a well made app says more about how you work than a brochure ever could.
Knowing your customers
With their consent, usage data shows which features people use, what they buy and where they give up, without asking them to fill in surveys nobody enjoys.
A direct line
Notifications and in-app messages reach customers with order updates, reminders and offers, with no platform deciding who sees them. Used sparingly, because an app that nags gets deleted.
Faster service
Customers expect quick answers. Tracking an order, rebooking or checking an account in the app settles in seconds what would otherwise be a call or an email.
Platforms we build on
iOS
Scalable iOS applications with usability as the first constraint. Swift, Objective-C and the Apple SDK.
Android
Robust Android applications across industries, built to hold up on the wide spread of devices Android actually runs on.
React Native
One codebase serving both platforms, when the product does not need platform-specific behaviour to compete.
Flutter
Cross-platform builds where a consistent custom interface across iOS and Android matters more than native look and feel.
IoT
Applications that talk to connected devices, where the interface is only half the problem and the hardware link is the other.
Games
Gaming applications for Android and iOS, built around Unity where the project calls for it.
What makes an app worth keeping
A reason to exist
An app has to offer something the mobile site does not. Businesses build apps because everyone is building apps, and those are the ones deleted after a week.
Usability first
Innovative, informative and simple to use. If a feature needs explaining, it needs redesigning.
Speed and reliability
Users spend hours a day on their phones and treat the app as the company. Slow or unstable reads as unserious, whatever the branding says.
Security
The confidentiality of user data is a baseline requirement, not a feature. Users should also be able to see that the protection is there.
Feedback
Make it easy to leave reviews and comments. It tells users the company listens, and it is the cheapest product research you will ever run.
Built in from the first release
Security
Data encryption, secure APIs and, where accounts hold sensitive information, two-factor authentication. Access rules are defined with you at the start, not added after launch.
Performance
Built to open fast and respond immediately on current devices and operating system versions, then checked on the older handsets your users still carry.
Integrations
Connections to your website, payment provider or internal systems through secure APIs, so the app works with the rest of the business instead of beside it.
Room to grow
The first release is kept focused on purpose, and the structure underneath is planned so features can be added as the business and its users grow.
How an app project runs
Discovery
We go through the idea, the people who will use it and the systems it has to talk to, then agree what the first release must do and what can wait.
Design and prototype
Screens and flows are designed and turned into a clickable prototype, so you can test the experience before development starts.
Development
The app is built in stages you can review on your own phone as it takes shape, instead of being revealed at the end.
Testing
Automated and manual testing across devices and system versions, including what goes wrong: weak connections, wrong inputs, interrupted payments.
Publishing
We prepare the store listings and handle submission to the App Store and Google Play, including any changes their review teams ask for.
Before you ask
What does it cost?
It depends entirely on scope. You get a quote in writing after the first call, once the feature set is defined.
Native or cross-platform?
Whichever the product needs. Cross-platform saves budget when both stores need the same experience, native wins when the app leans on platform features or heavy performance.
How long does it take?
Longer than a website, and the honest answer depends on the feature list. We scope it before quoting rather than after.
Do you handle the store submission?
Yes. The process runs from concept to delivery, which includes getting it published and keeping it maintained.
Do I need an app or a mobile website?
If customers visit occasionally, a fast mobile website usually serves them better. An app earns its place when people come back often or need notifications, offline access or the camera and location. We will say which one fits before you commit.
Can the app connect to my existing systems?
Usually, yes, through secure APIs. We review what your current systems expose during discovery, because that often decides the scope more than the screens do.
What do you need from me to start?
The idea, who it is for, the apps you like or compete with, and any brand material. A rough feature list helps; we refine it together.
Do you design the app as well as build it?
Yes. UI/UX design, prototyping and development run in the same studio, so the app is built as it was drawn and questions go to the people who made it.
Explore UI/UX designWho manages the project?
You work directly with the people designing and building the app, and one person on our side keeps the schedule, the decisions and your questions in one place from discovery to publishing.
Native, hybrid or cross-platform: what is the difference?
Native apps are written separately for iOS and Android with each platform's own tools. Cross-platform frameworks such as React Native and Flutter share one codebase and still render native interface elements. Hybrid apps wrap web pages inside an app shell: quick to build, weakest on performance and device features. We recommend one after discovery.
What affects the cost?
The number of features and screens, whether the app needs accounts, payments or an admin panel, the integrations with your systems and whether it ships on one platform or both. That is why the quote comes after the scope, not before.
Build your app
Tell us the idea and who it is for. You get a scope and a quote back after the first call.
hello@mdx.so