End-to-end iOS app development for startups and growing companies - launch your MVP on the App Store in about 3 months.
Yearsrs of iOS Dev Experience
Completed Projects
Certified Developers
Our iOS mobile app development services start with an honest choice: native development in Swift and SwiftUI, or cross-platform in React Native or Flutter. We work with both, so we recommend what fits your product. And before the project starts, you see real budgets and timelines from similar projects instead of abstract "from–to" estimates. Apple's requirements for privacy, authentication and in-app purchases are factored into design and architecture, not checked the week before submission. We break the timeline down by stage: one of our MVPs went from idea research to App Store launch in three months. After release, new versions ship on an agreed schedule, from every two weeks to monthly.
Fast team setup
We assemble a team of iOS developers, designers, and QA specialists in as little as 5 days and can add 5+ more specialists within 1–2 weeks.
One partner, full cycle
The iOS app, backend, wearable device integrations, and AI features are all built by one team, eliminating the need to coordinate multiple contractors.
Scaling without rebuilding
We design solutions so the product can scale with the company without requiring its core to be rewritten in a year or two.
We address common challenges that can get in the way of launching and growing an iOS app and show how we reduce the risks associated with them.
You invest in an idea but are not sure whether users will actually want to use it.
The budget goes toward features no one uses, leaving no money for improvements based on real user feedback.
During discovery, we refine the product hypothesis, define the key features for the first release, and prepare a clickable prototype to validate the main user flows.
Agency estimates vary significantly, making it difficult to understand what the iOS app will actually cost, including ongoing support.
The real cost turns out to be higher than expected, and the product fails to launch before the next funding round or season.
We provide release-by-release estimates based on similar projects and factor in post-launch support and update costs from the start.
The previous team missed deadlines, disappeared, or left behind code that no one can understand.
Money and months of work are lost, and another failed attempt could bring the product to a halt.
We start with a code audit, clearly explain whether it makes more sense to continue development or rebuild, and work in fixed-length sprints, while you retain ownership of the code.
You are not a technical specialist and cannot assess whether development is moving forward or how well the team is performing.
Problems only become visible close to the deadline, when fixing them is already expensive and time-consuming.
We work in sprints, demonstrate progress every week, and explain technical decisions in terms of business outcomes.
It is unclear whether you need a native iOS app or both iOS and Android built on a single codebase.
You either overpay for unnecessarily complex development or run into limitations in performance, integrations, or future product development.
We compare both approaches based on your product requirements, functionality, and development plans.
Your company has no in-house iOS developers or not enough of them, while hiring takes months.
Product development slows down, planned releases are postponed, and time to market increases.
We bring in Middle- and Senior-level iOS developers who work within your existing processes and tools, without additional recruitment, HR, or administrative costs.
Design, development, integrations, testing, and support services - we guide your iOS app from the initial idea through App Store submission and publication, or join the project at a specific stage.
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We build iOS apps from the ground up around your business logic, users, and growth plans:
Develop iOS apps for iPhone and iPad using Swift, with interfaces built in SwiftUI;
Create companion apps for Apple Watch on watchOS when the product requires them;
Build the software architecture using MVVM and Clean Architecture;
Deliver a clear, maintainable codebase that your team can take over.
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Want to Bring Your iOS App to Market Fast?
Tell us about your idea - we’ll estimate the project, recommend the right app development approach, and provide a realistic budget and development timeline.
One solution, three different interaction scenarios. We don’t stretch the iPhone interface to fit the iPad or shrink it down for Apple Watch - we make use of each device’s capabilities.
We build intuitive, high-performance iOS apps for everyday use and, when needed, implement offline mode and push notifications to keep users engaged.
We adapt navigation and user flows to the larger screen and multitasking capabilities, making full use of the iPad’s advantages rather than simply stretching the iPhone version.
We build watchOS apps with quick actions and the features your solution needs, from notifications to activity tracking and iPhone synchronization.
The approach affects budget, timeline and how the app grows later. We work with both native and cross-platform, so we compare them for your product.
Cost depends on features, integrations, design and security requirements. Instead of abstract "from–to" ranges, we estimate your product against data from similar projects and send a release-by-release breakdown after a short call.
Number of screens and user roles
Complexity of business logic
Offline mode and data synchronization
Personalization and AI features
iPad and Apple Watch support
A clearly defined scope for the first release helps launch the solution faster and focus the budget on the features users actually need.
Number of unique screens
Custom animations and microinteractions
Clickable prototype and user testing
Design system for future product development
Interface adaptation for different Apple devices
Thoughtful design from the start reduces the amount of rework needed during development and after release.
Apple Pay and Stripe payments
Integrations with CRM, ERP, and third-party services
Push notifications and analytics
Wearable device integrations
Custom backend or ready-made cloud services
Each integration adds to the development scope, so we determine upfront which ones are needed for the first release and which can be added later.
GDPR, CCPA, or HIPAA requirements, where applicable to the product
Data encryption
Biometric authentication
Security requirements are built into the architecture from the first stage, so they should be factored into the estimate before development begins.
Team composition based on project needs
Engagement model: dedicated team, team extension, or fixed scope
Launch timeline
Updates for new iOS versions
Post-release solution development
We include support costs in the estimate from the start so the actual cost of the app does not come as a surprise after launch.
Every industry has its own rules for data, security and user flows. As an iOS development company, we identify them during discovery and build them into the first release.
We build financial iOS apps with payment integrations, biometric authentication, and user data protection.
We develop apps for patients and clinics with appointment scheduling, remote interactions, and medical data protection in line with applicable regulatory requirements, including HIPAA.
We build apps for collecting and analyzing health data, with integrations for compatible wearable devices, AI features, and data protection measures.
We develop apps for drivers and couriers with real-time tracking and offline functionality.
We build apps that allow customers to purchase insurance policies, file claims, and track their status.
We provide more than code: honest expertise, transparent processes, and an approach that reduces risks at every stage, from design to release on the App Store.
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Verified reviews on Clutch let you see what other clients say about working with us before the first call.
We work as a technology partner: we track solution metrics and suggest improvements rather than simply completing tasks.
We protect confidential information through an NDA and define the transfer of intellectual property rights to the code and design created for the project in the contract.
During discovery, we identify applicable security and privacy requirements and incorporate the agreed technical measures into the architecture, development, and testing.
When needed, we bring in our in-house AI, Cloud, and DevOps specialists, so you don’t have to hire separate contractors as the solution evolves.
The average client engagement lasts 30 months, and 55% of our clients return to us with new projects.
Choose the model that fits your product: a dedicated team for the full cycle, or specialists with the expertise you need. Either way, you know who is on the team and what ships next.
A dedicated team of iOS developers, designers, and QA specialists works on your application as an extension of your in-house team. This model is ideal for long-term app development.
We add the specialists you need to your in-house team when you lack iOS developers or specific expertise. You manage the process, while we fill the technical gap.
An agreed scope of work, timeline, and budget for projects with clearly defined requirements; for example, a standalone module or an MVP with a fixed set of features.
We break development into transparent stages, explain our technical decisions, and stay with the product from discovery to App Store launch and beyond.
We analyze the idea, market, and users, define the features for the first release, compare native and cross-platform application dev approaches, and prepare a stage-by-stage estimate.
We create a clickable prototype, test key user flows with users, and build a design system in line with Apple’s Human Interface Guidelines.
We select the technologies for future applications, plan integrations and security, factor in App Store requirements, and set up CI/CD from day one.
We work in sprints, regularly demonstrate progress, and review priorities between iterations, assessing how application changes affect the scope, timeline, and budget.
We test the app on real devices, prepare privacy details and metadata, submit the build through App Store Connect, and support the app through approval.
We monitor stability, adapt the app to new iOS versions, and prepare updates for App Store submission according to the agreed schedule.
Every project gets a dedicated team: iOS developers (Middle+/Senior), UI/UX designers, QA and a PM. When needed, we add backend, DevOps and AI engineers, so the full development cycle stays in-house.
A proven technology stack for secure, scalable, and high-load iOS solutions.
iOS Development
Swift
SwiftUI
Cross-Platform
React Native
Flutter
Architecture
MVVM
Clean Architecture
Backend & APIs
Node.js
Nest.js
Python
dotNET
REST API
GraphQL
Databases
PostgreSQL
MongoDB
Firebase
Cloud
AWS
Azure
Google Cloud
Security
OAuth 2.0
JWT
SSL/TLS
Push Notifications
Firebase Cloud Messaging
OneSignal
Payments
Apple Pay
Stripe
Analytics & Stability
Firebase Analytics
Crashlytics
Sentry
Testing
Appium
Release
App Store Connect
Fastlane
Behind every review is a real story of success, partnership, and genuine trust.
The team quickly understood our goals and translated them into practical solutions. Their ability to adapt and move fast made the collaboration smooth and highly productive.
Joseph F.
Ozeaon | Portugal
Joseph F.
Ozeaon | Portugal
Zentix delivered their development work on time, which was an excellent start for the client. The team worked in sprints, updated the client weekly, and delivered tasks on schedule.
Andrew R.
RaDevs | Estonia
Andrew R.
RaDevs | Estonia
Responsiveness and dedication to delivering high-quality services were outstanding.
Maria А.
ARGUNOVA | Ukraine
Maria А.
ARGUNOVA | Ukraine
Zentix's work met the client's expectations. The team provided timely deliverables and professional responses throughout the engagement. Their daily online meeting, constant updates on the project's progress, and excellent results were remarkable. Zentix approached tasks promptly and creatively.
Andrey H.
Bestclevers | UK
Andrey H.
Bestclevers | UK
The team delivered exactly what we needed — high-quality solutions and smooth collaboration from start to finish.
Alex L.
Wavory | Cyprus
Alex L.
Wavory | Cyprus
Zentix helped us build and launch our e-commerce platform with great attention to detail. The team was responsive, professional, and easy to work with throughout the entire process.
Amir B.
Servicom | Sweden
Amir B.
Servicom | Sweden
Ready to Bring Your iOS App to Market?
No more abstract “from–to” estimates. Tell us about your application idea and get a clear plan, development budget, and timeline within 24 hours.
Our iOS development services cover the full app development cycle for iPhone, iPad, and Apple Watch, from idea research and design to development, testing, and App Store publication. You can also engage us for a specific stage, such as design, an audit of an existing app, or post-release support.
The development timeline depends on the number of features, the complexity of integrations, and the chosen approach - native or cross-platform. For example, one of our MVP projects went from initial idea research to release on the App Store in three months. We agree on the timeline and scope of the first release before development begins, while subsequent updates are planned according to the application's roadmap and priorities.
We factor in Apple’s requirements during the design and architecture stages. Depending on the app’s functionality, we prepare privacy details and a privacy manifest, configure App Tracking Transparency, account deletion, in-app purchases, and Sign in with Apple. Before submission, we check the build, prepare metadata and App Review notes, and support the app through publication. This reduces the risk of rejection and release delays.
Yes. We integrate AI features into iOS apps, including smart recommendations, LLM-powered search and chat assistants, predictive analytics, and AI agents. For example, in one project, we combined data from a wearable device with an AI-powered user activity tracking module.
Yes. We start by auditing the existing code, architecture, and crash reports, then clearly explain whether it makes more sense to improve the app or rewrite specific parts. We then update it for new iOS versions and continue developing the app alongside your company.
After launch, we monitor stability, track crashes, update the app for new iOS versions and Apple devices, and release new features according to an agreed schedule. For example, every two weeks, as we do for one of our clients.
The terms for transferring the source code, design, and intellectual property rights are defined in the contract. Once the conditions specified in the agreement are fulfilled, the client receives the rights to the materials created specifically for the project. If needed, we sign an NDA before technical discussions begin.
Send us a description of your idea or a list of desired application features, and specify whether the app is intended only for iPhone or for multiple Apple devices, your preferred application development approach, approximate budget, and timeline. We respond within 24 hours and, after a short call, prepare a release-by-release estimate.
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