πŸ“± ZetsApp Services

Mobile App Development Services

We build polished, high-performance mobile apps for iOS and Android β€” native or cross-platform β€” that users love and businesses rely on.

7.3k+Projects delivered
9k+Engineers, designers & AI experts
7+Years building software
4.9/5Average client rating

One codebase or native β€” your call

We build cross-platform apps with Flutter or React Native for speed and budget efficiency, or fully native iOS and Android when you need maximum performance. We help you choose based on your goals, not our preferences.

From idea to App Store

We handle the full lifecycle: UX design, development, testing, store submission, and post-launch iteration with analytics-driven improvements. You get a launch-ready app and a partner who stays with you after release.

Built for performance and retention

Great mobile apps are fast, reliable, and delightful. We optimise startup time, offline behaviour, and battery use, and instrument analytics so you can measure engagement and keep improving retention after launch.

Mobile app development services we offer

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Native iOS development

High-performance iPhone and iPad apps built in Swift, tuned for the Apple ecosystem and App Store guidelines.

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Native Android development

Robust Android apps built in Kotlin, optimised across the full range of devices and Play Store requirements.

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Cross-platform apps

One codebase for iOS and Android with Flutter or React Native β€” faster to build and cheaper to maintain.

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Mobile UX/UI design

Intuitive, on-brand mobile interfaces designed for engagement, accessibility, and conversion.

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Integrations & features

Push notifications, payments, maps, camera, biometrics, and third-party APIs integrated securely.

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Maintenance & updates

Ongoing updates for new OS versions, bug fixes, and features so your app stays current and stable.

What you get

  • βœ“iOS & Android development
  • βœ“Cross-platform (Flutter / React Native)
  • βœ“UX/UI design
  • βœ“App Store & Play Store launch
  • βœ“Push, payments & integrations
  • βœ“Maintenance & updates

Technologies we build with

We are technology-agnostic and pick the right stack for your goals β€” here are the tools our engineers use most to ship fast, scalable mobile app development.

Frontend

ReactAngularVue.jsNext.jsTypeScriptTailwind

Backend

.NET / C#Node.jsPythonJavaGoGraphQL

AI / ML

LLMsRAGVector DBsPyTorchLangChainMCP

Cloud & DevOps

AWSAzureGCPDockerKubernetesCI/CD

Mobile

FlutterReact NativeSwiftKotlin

Data

PostgreSQLMongoDBRedisKafkaSnowflake

Industries we serve

We bring domain context to every engagement β€” mapping the compliance, workflows, and metrics that matter in your sector so the software we ship drives real outcomes.

Healthcare & MedTechReal Estate & PropTechFinance & FinTechConstructionE-Commerce & RetailEducation & EdTechLogistics & Supply ChainSaaS & Startups

Flexible engagement & pricing models

Every business is different, so we offer several ways to work together. Start with a free consultation and we will recommend the model that best fits your scope, timeline, and budget.

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Fixed-scope project

Best for well-defined builds. We agree scope, timeline, and a fixed price up front so you know exactly what you get and what it costs.

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Dedicated team

A cross-functional squad β€” engineers, designers, QA, and a project lead β€” that works as an extension of your business, month to month.

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Staff augmentation

Add senior developers or AI specialists to your existing team to fill skill gaps and accelerate delivery without long hiring cycles.

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Support & retainer

Ongoing maintenance, optimisation, and new-feature development on a predictable monthly retainer after launch.

Our delivery process

1

Discovery & strategy

We map your goals, users, and workflows, then define scope, architecture, and a clear roadmap with fixed milestones and transparent pricing β€” no surprises, no scope creep.

2

UX design & prototype

Wireframes and interactive prototypes validate the experience and de-risk the build before a line of production code is written, saving you time and budget.

3

Agile development & QA

We build in two-week sprints with continuous integration, automated testing, and live demos, so you see working software early and steer it as it grows.

4

Launch, support & scale

We deploy to the cloud with monitoring, security hardening, and CI/CD, then iterate with analytics-driven improvements and ongoing support as you scale.

Frequently asked questions

Native or cross-platform β€” which is better?

It depends on your goals. Cross-platform is faster and more cost-effective for most apps; native is best for graphics-heavy or hardware-intensive apps. We advise on the right fit for your product and budget.

Do you handle App Store submission?

Yes. We manage the full submission and review process for both the Apple App Store and Google Play, including store listings and assets.

How much does it cost to build a mobile app?

Cost depends on features, platforms, and complexity. A cross-platform MVP is usually the most cost-effective starting point; we provide a fixed-scope quote after a free consultation.

Can you build both iOS and Android from one codebase?

Yes. With Flutter or React Native we build a single codebase that runs on both platforms, reducing cost and keeping features consistent across iOS and Android.

Do you maintain apps after launch?

Yes. We offer ongoing maintenance and support β€” OS updates, bug fixes, performance tuning, and new features β€” on a retainer or per-request basis.

Let's build mobile app development that grows your business

Book a free consultation and get a clear, fixed-scope proposal within 48 hours.

Start your project β†—