Native Development
Platform languages and UI frameworks for apps that need full access to iOS and Android features.
App Development
Mobile apps built to pass review and keep users coming back
Cypherox provides mobile app development services for iOS, Android, and cross-platform products, from first release to long-term support. We handle architecture, native features, back-end connections, testing on real devices, and App Store and Google Play submission.
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What Cypherox Offers
Mobile app development company for every platform and stage
Choose native development when performance and device features matter most, cross-platform when one codebase should serve both stores, and ongoing support to keep any app current.
iOS App Development
Native iPhone and iPad apps in Swift that use Apple frameworks fully and follow the guidelines App Store reviewers check.
- Swift and SwiftUI development
- Apple Pay, HealthKit, and widgets
- App Store submission support
Android App Development
Native Android apps in Kotlin, tested across the device sizes, manufacturers, and OS versions your users actually carry.
- Kotlin and Jetpack Compose
- Broad device compatibility testing
- Google Play release management
Cross-Platform App Development
One Flutter or React Native codebase for iOS and Android, cutting build and maintenance effort when both platforms need the same features.
- Flutter and React Native builds
- Shared code, near-native performance
- Native modules where needed
App Maintenance and Support
Ongoing updates for new OS releases, security patches, crash fixes, and feature work, so published apps stay stable and compliant with store rules.
- OS and SDK version updates
- Crash monitoring and fixes
- Legacy app modernization
iOS App Development
iOS App Development Services in Swift for iPhone and iPad
iPhone users expect apps to feel like part of the system, with familiar navigation, fast launch times, and support for features such as Face ID and widgets. We build native iOS apps in Swift and SwiftUI, connect them to your back end, and prepare builds, privacy details, and metadata for App Store review.
- SwiftUI Interfaces: Builds screens that follow Apple's layout and interaction conventions.
- Device Features: Integrates Face ID, camera, location, push notifications, and widgets.
- Apple Services: Connects Apple Pay, Sign in with Apple, HealthKit, and iCloud where needed.
- Offline Support: Stores data locally so key features work without a connection.
- Privacy Compliance: Prepares App Tracking Transparency prompts and App Store privacy labels.
- TestFlight Releases: Distributes beta builds to testers before public launch.
Android App Development
Android App Development Services Built with Kotlin
Android runs on thousands of device models, so an app that works on one phone can fail on another. We build native Android apps in Kotlin and Jetpack Compose, test them across screen sizes and OS versions that match your user base, and manage staged rollouts on Google Play to catch problems early.
- Jetpack Compose UI: Builds modern Android interfaces that follow Material Design guidance.
- Device Compatibility: Tests across manufacturers, screen sizes, and supported Android versions.
- Background Tasks: Handles sync, uploads, and notifications without draining the battery.
- Google Services: Integrates Google Pay, Maps, Firebase, and sign-in where needed.
- Play Store Compliance: Meets target SDK, data safety, and permission policy requirements.
- Staged Rollouts: Releases updates to a share of users first to limit risk.
Cross-Platform App Development
Cross-Platform App Development with Flutter and React Native
When your app needs the same features on iOS and Android, maintaining two separate codebases nearly doubles the work. We build cross-platform apps in Flutter or React Native that share most of their code while still using native modules for cameras, payments, and sensors. You release to both stores together and maintain one product instead of two.
- Shared Codebase: Delivers one set of features to both iOS and Android.
- Native Modules: Adds platform-specific code where shared libraries fall short.
- Consistent Design: Keeps your branding consistent while respecting each platform's conventions.
- Simultaneous Releases: Ships updates to the App Store and Google Play together.
- Over-the-Air Updates: Pushes small fixes without full resubmission where store rules allow.
- Framework Selection: Recommends Flutter or React Native based on your team and features.
App Maintenance and Support
App Maintenance and Support That Keeps Published Apps Healthy
Apple and Google release new OS versions every year and regularly tighten store policies, so apps left untouched start to break or risk removal. We monitor crashes and performance, apply OS and SDK updates, fix security issues, and continue feature development. For older apps, we assess whether to refactor, migrate frameworks, or rebuild.
- Crash Monitoring: Tracks crashes and errors in real time and prioritizes fixes by impact.
- OS Compatibility Updates: Tests and updates apps ahead of new iOS and Android releases.
- Security Patching: Updates dependencies and fixes vulnerabilities as they are disclosed.
- Performance Tuning: Reduces launch time, memory use, and battery drain.
- Feature Development: Continues adding features based on user feedback and analytics.
- Legacy App Modernization: Migrates older Objective-C, Java, or outdated framework apps to current technology.
Release Standards
App development built for store approval, stability, and privacy
A rejected submission or a crash-prone release costs users who rarely come back. These four standards apply to every app we build, test, and ship.
- Store Guideline Reviews: Builds are checked against current App Store and Google Play policies before submission to reduce rejections.
- Real Device Testing: Apps are tested on physical devices and device clouds that reflect your users' phones and OS versions.
- Privacy by Design: Permissions, data collection, and tracking are limited to what features need, with GDPR requirements considered.
- Crash-Free Monitoring: Every release ships with crash and performance monitoring, so issues are found before reviews mention them.
How Cypherox Builds Apps
From app idea to store launch and every update after
Apps succeed when the first release is focused and later updates are planned. Our five stages take you from scope to store approval and into continuous improvement.
Product Scoping
We define target users, core features, platforms, and what the first store release must include.
Architecture and Platform Choice
We decide between native and cross-platform, plan the back end, and design offline and sync behavior.
Development Sprints
We build in short sprints, sharing test builds through TestFlight and Google Play testing tracks.
Testing and Store Submission
We test on real devices, fix issues, and prepare listings, privacy details, and builds for review.
Launch and Continuous Improvement
We monitor crashes, reviews, and analytics after launch, then plan updates based on how people use the app.
App Technology
Mobile app frameworks and tools we develop with
We choose native or cross-platform technology based on your features, performance needs, budget, and the team that will maintain the app.
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Cross-Platform
Frameworks that share one codebase across iOS and Android without giving up native modules.
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Back End and Data
Services that handle authentication, data sync, push notifications, and app content.
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Testing and Release
Tools for automated testing, beta distribution, crash monitoring, and store release management.
App Technology
Mobile app frameworks and tools we develop with
We work with the official platform tools and widely used frameworks, so your app keeps pace with platform updates and stays easy to maintain.
Native Development
- • Swift
- • SwiftUI
- • Kotlin
- • Jetpack Compose
- • Xcode and Android Studio
Cross-Platform
- • Flutter
- • Dart
- • React Native
- • Expo
- • Kotlin Multiplatform
Back End and Data
- • Firebase
- • Node.js
- • GraphQL
- • PostgreSQL
- • AWS Amplify
Testing and Release
- • XCTest
- • Espresso
- • Appium
- • Fastlane
- • Firebase Crashlytics
Results from mobile apps we have built and shipped
99.5%+
Crash-free sessions across supported apps
4.6
Average store rating across released apps
40%
Lower maintenance effort with cross-platform builds
95%+
Store submissions approved on first review
What app owners say about working with Cypherox
Founders and product leaders on launching, growing, and maintaining their mobile apps with our development team.
"Hi, my name is Gabrielle, and I'd like to share my experience working with Cypherox Technologies on one of the mobile apps and websites I built with them. The team members at Cypherox Technologies were attentive, diligent, communicative and very, very bright. I had an amazing experience working with them and I highly recommend."
"I'm Britney and I'm the head of conversion optimization for Acadia, a digital marketing agency. I've had the pleasure of working with the Cypherox team for over two, going on three years now. They're fast, hardworking and really diligent developers. They're really reliable, skilled developers and have been a great partner and a pleasure to work with."
"Hey I'm Brian and I recently worked with Cypherox Technologies who developed an e-commerce platform. For me, working with Cypherox Technologies was truly an excellent experience. I recently collaborated with them to design and develop the custom e-commerce platform from the Groundhog and their expertise was evident from day one."
"Hi, I'm Becke. I've had the pleasure of working with Cypherox Technologies on a recent web development project. It was a custom, heavy CRM and the experience was seamless from start to finish. The product was delivered on time and he went the extra mile to ensure everything was done so that we understood the process. It was just, it was brilliant. It was really, really good service. So yeah, absolutely brilliant; I'd recommend it. Thank you so much. Thank you."
"I would highly recommend working with Cypherox Technologies if you need a custom CRM platform. They always exceed their clients' expectations at every stage of the project. Their team designs and builds fully customized ecommerce platforms from the ground up, approaching every project with remarkable skill and dedication."
"Hi, my name is Gabrielle, and I'd like to share my experience working with Cypherox Technologies on one of the mobile apps and websites I built with them. The team members at Cypherox Technologies were attentive, diligent, communicative and very, very bright. I had an amazing experience working with them and I highly recommend."
"I'm Britney and I'm the head of conversion optimization for Acadia, a digital marketing agency. I've had the pleasure of working with the Cypherox team for over two, going on three years now. They're fast, hardworking and really diligent developers. They're really reliable, skilled developers and have been a great partner and a pleasure to work with."
"Hey I'm Brian and I recently worked with Cypherox Technologies who developed an e-commerce platform. For me, working with Cypherox Technologies was truly an excellent experience. I recently collaborated with them to design and develop the custom e-commerce platform from the Groundhog and their expertise was evident from day one."
"Hi, I'm Becke. I've had the pleasure of working with Cypherox Technologies on a recent web development project. It was a custom, heavy CRM and the experience was seamless from start to finish. The product was delivered on time and he went the extra mile to ensure everything was done so that we understood the process. It was just, it was brilliant. It was really, really good service. So yeah, absolutely brilliant; I'd recommend it. Thank you so much. Thank you."
"I would highly recommend working with Cypherox Technologies if you need a custom CRM platform. They always exceed their clients' expectations at every stage of the project. Their team designs and builds fully customized ecommerce platforms from the ground up, approaching every project with remarkable skill and dedication."
Frequently Asked Questions
Answers for founders and product leaders comparing mobile app development services, covering native versus cross-platform, store approval, timelines, maintenance, ownership, and cost.
Have an app idea or existing app?
Tell us what the app should do, and we will recommend native or cross-platform and outline a first release. Designs not ready yet? Our UI/UX design services can start there.
Discuss Your App Idea
Should we build a native or cross-platform app?
Choose native when the app relies heavily on device features, complex animations, or top performance on one platform. Cross-platform suits most business and consumer apps that need the same features on iOS and Android, since one codebase lowers build and maintenance effort.
Do you handle App Store and Google Play submission?
Yes. We prepare builds, store listings, screenshots, privacy details, and compliance information, and manage the review process for both stores. If a submission is rejected, we resolve the reviewer's points and resubmit, with apps published under your own developer accounts.
How long does it take to develop a mobile app?
It depends on the number of features, platforms, and integrations, and whether a design is ready. A focused first version reaches the stores before the full feature set, so you can learn from real users while further updates are built.
How do you keep web applications secure?
It depends on the number of features, platforms, and integrations, and whether a design is ready. A focused first version reaches the stores before the full feature set, so you can learn from real users while further updates are built.
Can you take over an app built by another team?
Yes. We start with a code and architecture audit to assess quality, security, and outdated dependencies, then recommend whether to stabilize, refactor, or rebuild. Once agreed, we take over maintenance and feature development, including releases to both stores.
Do you build the back end for mobile apps too?
Yes. We build or integrate the back-end services an app needs, including user accounts, data sync, push notifications, payments, and admin dashboards. If you already have APIs, we connect the app to them and suggest changes only where needed.
How do you handle user data and privacy in apps?
We collect only the data each feature needs, request permissions at the moment they make sense, encrypt sensitive data, and complete store privacy declarations accurately. Apps used in the EU are built with GDPR requirements, such as consent and data deletion, in mind.
What happens after the app is launched?
We monitor crashes, performance, and store reviews, release fixes, and keep the app compatible with new iOS and Android versions. Ongoing feature development can follow a roadmap shaped by analytics, support requests, and user feedback.
How much do mobile app development services cost?
Cost depends on the platforms, the number of features and screens, native device integrations, back-end requirements, and whether design is included. Cross-platform builds usually cost less than two native apps. We provide a scoped estimate after defining the first release.
Start With Your App Idea
Let's map out your mobile app
Tell us what your app should do, which platforms matter, and whether you have designs or an existing app. We will recommend an approach and outline the first release.
- Describe your app and target platforms
- Get a native or cross-platform recommendation
- Receive a release plan and estimate