HarmonyOS
Development Services

We build high performance, visually engaging, and scalable HarmonyOS applications that help businesses enhance their digital presence, reach a wider audience, and achieve measurable growth across the connected device ecosystem.
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Innovative HarmonyOS App Development Services​

Custom HarmonyOS App Development

We create complete HarmonyOS apps with clean screens, smooth navigation, and simple user flows built specifically for Huawei devices and the Harmony ecosystem.

HarmonyOS ArkUI Interface Design

We design modern app interfaces using ArkUI with clear layouts, simple controls, and fast performance that match Huawei’s design style and user expectations.

Cross Device Super Device Experience

We enable HarmonyOS multi-device features, letting users seamlessly switch tasks across phones, tablets, watches, laptops, TVs, and smart devices.

HarmonyOS Ability Framework Development

We build apps using HarmonyOS Ability models, including FA and PA abilities, to create flexible, modular functions that work across multiple device types.

Local Data, Cloud Storage, and Sync Setup

We set up data handling for your app including offline storage, cloud sync, and user data
protection so your app stays fast and reliable at all times.

Huawei Maps, Location Services, and Navigation

We add Huawei Maps features—tracking, routing, nearby search, and indoor/outdoor navigation—optimized for HarmonyOS devices..

Huawei Wallet and In App Payment Integration

We integrate secure Huawei payments—Wallet, subscriptions, ticketing, digital passes, and in-app purchases—for smooth, reliable transactions.

Device Features for IoT and Smart Home Apps

We build apps that connect with smart home devices, IoT sensors, wearables, and HarmonyOS powered gadgets to support automation and remote control.

App Gallery Publishing and Approval Support

We prepare your app for AppGallery with listings, screenshots, policy checks, testing, and full guidance through approval until it goes live.

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Transforming businesses with mobile first solutions

  • All Market

    Vehicle marketplace with inspection reports.

  • ATMOS

    Remote thoracic drainage monitoring app.

  • Tow master

    GPS based transport survey app.

  • ReflyCA

    Referral based hiring platform built on Bubble.io with LinkedIn integration.

All Market

A complete vehicle marketplace app with legal and mechanical report features, connecting buyers and sellers seamlessly.

ATMOS

A secure, easy to use medical support app helping doctors and patients remotely monitor thoracic drainage devices.Designed for older users, it enables image capture, progress tracking, and direct doctor communication for timely medical care.

Tow master

An Android based data collection app with a web admin panel for public transport surveys.
Includes GPS tracking, offline data storage, and real-time dashboards with CSV/KML export and KoboToolbox integration.

ReflyCA

A professional networking and referral based hiring app built with Bubble.io, connecting job seekers, referrers, and hiring managers.
Includes profile management, LinkedIn integration, job posting, referrals, and in app messaging for seamless recruitment.

Design Develop Dominate the Digital Space

Partnership That Drives Growth

One of the best team out there will support you from the initial idea all the way to the final product. When I started my app, I only had a few sketches but they redesigned everything and made the app incredibly user-friendly. It also involved some complex technologies, but they handled it brilliantly. I highly recommend them their prices are unbeatable. I’d like to thank the entire team and send my greetings from Greece.

Daniel

STALLYONS TECHNOLOGIES is a top-notch expert in its field. After a year of working with them on a series of projects, I can say I've experienced incredible dedication, a professional approach, and excellent communication. Their solutions and suggestions have proven incredibly effective. Thanks to their experience, our website has become a modern online business and is opening up new opportunities for us. We highly recommend STALLYONS TECHNOLOGIES as top-notch IT specialists.

Dariusz Slawski

Great work and very professional. They ported one of my Android apps to HarmonyOs Next. Did a great job and to the point. Communication was very good and they are always availble for questions, chats etc. Highly recommended, very good code quality. I will hire him again.

Michael Seeboerger

I am very satisfied with the final result that was delivered. Throughout the project their commercial awareness stood out and they were very professional and communication was excellent. Thanks for your patience and your work.

Eva Chrisidou

I worked on several projects with the company. Excellent service, high availability, excellent performance helped me a lot in the development of several sites.

Lior Refaely

The team was helpful to build an ERP system project and they did achieve the requirements. Provided everything that i wanted, doesn't matter how complex the request was they were able to make it happen. So happy with them we have already re hired them for another project.

Binh Nguyen

I have worked with them on a few projects now and each time their work has been completed on time and to my complete satisfaction. I always have a very clear idea of what I’m looking for and consider myself quite a demanding customer, but nothing I request is ever too much trouble for their team. I can therefore highly recommend them and will be hiring their team again in the near future, as and when further updates are required.

Fraser R

Exceptional service by the team in tasks related to our LMS, with timely delivery that surpassed expectations. Your attention to detail and efficiency significantly elevated our educational platform. Strongly recommended for anyone seeking reliable, high-quality work.

Sunil Kumar

I had a great time with Stallyons Technologies. throughout all phases of the work. Their professionalism and expertise made the entire process not only smooth, but also productive. Their ability to approach challenges with a positive mindset amazed me, creating a collaborative and stimulating work environment. In particular, I appreciated their willingness to share ideas and suggestions, which enriched our project. It was a real pleasure to work side by side with such motivated people.

Alessandro T

Working with these guys is a rewarding experience. They demonstrate expertise in their field and are highly receptive to the feedback provided regarding the project. I highly recommend them.

Rodrigo Padillas

Your Vision Our Expertise

  • Experienced & Skilled Team

360° Cross Platform Solutions

Comprehensive development across all platforms ensuring seamless integration and consistent user experience everywhere.

Seamless In House Development

Dedicated internal teams providing direct collaboration and consistent quality without third party dependencies.

Customized & Scalable Approach

Solutions built specifically for your vision that expand effortlessly as your business grows.

Competitive Pricing & On-Time

Cost effective development with guaranteed deadlines and transparent pricing throughout.

Proven Development

Reliable frameworks and best practices ensuring predictable outcomes and efficient project execution.

Enterprise Grade App Solutions

Professional grade applications with enterprise security, performance, and scalability built in.
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Frequently Asked Questions

  • What is HarmonyOS?

    HarmonyOS is a microkernel based OS by Huawei designed for smartphones, tablets, wearables, TVs, and IoT devices, enabling seamless multi device connectivity within one ecosystem.

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Journey Here!

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You can reach us anytime via [email protected]