Hire App Developers
Build and scale mobile products with dedicated app developers who treat your roadmap like their own. We assemble senior iOS, Android, and cross-platform specialists who plug into your rituals, communicate proactively, and deliver polished experiences sprint after sprint.
Every engagement starts with understanding the outcomes you care about—activation, retention, LTV, operational efficiency. From there we handpick designers, engineers, QA analysts, and release managers who have already solved similar challenges. The result: product teams who can ideate, prototype, ship, and iterate without constant supervision.
- Source vetted talent across Swift/SwiftUI, Kotlin/Jetpack Compose, React Native, and Flutter.
- Blend time zones for 4–12 hours of overlap without sacrificing velocity.
- Stand up squads inside two weeks with clear goals, KPIs, and release plans.
App Development Staff Augmentation
Bring proven product builders into your squad without pausing delivery.
We treat staff augmentation as an extension of product strategy—not a quick fix. Our delivery leads listen to your vision, technical constraints, and resourcing gaps, then curate a multidisciplinary pod that can own user stories from discovery to post-release analytics. And because we work inside your tools, ceremonies, and communication channels, everything stays transparent.
Discovery & Fit
We map your architecture, delivery process, and velocity goals to define the exact mix of engineering, QA, DevOps, and product craft you need. Expect a curated shortlist within 72 hours and interviews with engineers who already ship in similar stacks.
Embedded Execution
Developers join your Slack, Jira, Azure DevOps, or Linear instance, stick to your branching strategy, and uphold your coding standards. Shared dashboards keep stakeholders on top of burndown, test coverage, and release readiness.
Continuous Improvement
We facilitate regular delivery reviews to surface product insights, UX opportunities, and process tweaks. Need to add analytics, automation, or accessibility testing? We adjust the squad without breaking cadence.
Native craftsmanship
iOS specialists leverage Swift, SwiftUI, and the latest Apple frameworks to craft immersive experiences that align with Human Interface Guidelines. On Android, our Kotlin engineers lean on Jetpack Compose, CameraX, and WorkManager to keep apps smooth and battery-friendly.
Cross-platform pragmatism
When speed-to-market matters, we deploy React Native or Flutter engineers who know the ecosystems inside out. They follow best practices from the React Native community and Flutter's official playbooks to maximize reuse without sacrificing native delight. Need specialists immediately? Dive into our cross-platform staff augmentation model.
Performance & resilience
We profile startup times, memory usage, and network calls from the first build. Automated testing across device farms, real user monitoring, and release guardrails keep regressions out of production and ratings high.
Product thinking baked in
Developers collaborate with product owners and designers to validate hypotheses, run A/B experiments, and interpret analytics. We plan sprints around measurable outcomes, not vanity features.
What our mobile specialists bring to the table
- Platform fluency: Deep understanding of design guidelines, accessibility standards, and store submission checklists.
- Full lifecycle ownership: From technical discovery to monitoring analytics after launch.
- Security-first mindset: Secure storage, encrypted APIs, and compliance with OWASP Mobile Top 10 and platform-specific policies.
- Transparent communication: Async updates, sprint demos, and living documentation to keep stakeholders aligned.
Case Study: Scaling Fintech Onboarding
How we helped a Series B fintech reduce drop-off by 37% in six sprints.
A Miami-based payments startup asked Siblings Software to rescue an underperforming onboarding flow. We assembled a blended squad: two senior mobile engineers, a UX researcher, and an automation QA—each with previous experience in regulated environments.
- Challenges: Legacy Objective-C codebase, slow biometric verification, incomplete analytics, and compliance checkpoints slowing releases.
- Approach: Migrated critical modules to SwiftUI, implemented Kotlin Multiplatform shared business logic, introduced Firebase Remote Config experiments, and automated regression suites with BrowserStack.
- Results: 37% reduction in onboarding abandonment, 2.1x faster releases, App Store rating jump from 3.4 to 4.6, and SOC 2 Type II audit readiness achieved on schedule.
Read more about our collaborative model in our mobile case studies, or explore how we assemble cross-platform squads that mirror this launch.
What the client said
“Siblings Software’s embedded team unlocked our release pipeline. They improved activation and gave us the observability we needed to iterate with confidence.”
Gabriela Álvarez
VP of Product, HeliosPay
Why Mobile Apps? Why Now?
Mobile-first experiences, native performance, offline capabilities.
Mobile apps aren't just smaller versions of websites—they're powerful tools that can leverage device features, work offline, and provide native experiences that web apps can't match. When you build a mobile app, you get access to device cameras, GPS, push notifications, biometric authentication, and more. You can create experiences that are faster, more engaging, and more integrated with users' daily lives.
Native Performance
Mobile apps run natively on devices, which means they're fast, responsive, and can leverage device hardware directly. Native apps can access device features like cameras, GPS, sensors, and biometric authentication, enabling experiences that web apps simply can't provide. Native performance is one of mobile apps' key advantages.
Offline Functionality
Mobile apps can work offline, which is crucial for many use cases. Users can access content, perform actions, and sync data when they're back online. This offline capability makes mobile apps more reliable than web apps, especially in areas with poor connectivity or when users are traveling.
Device Integration
Mobile apps can integrate deeply with device features: cameras for photo and video, GPS for location services, push notifications for engagement, biometric authentication for security, and more. These integrations enable experiences that feel native and intuitive, making apps more valuable to users.
App Store Presence
Mobile apps live in app stores, which means they're discoverable, reviewable, and can be installed with a single tap. App stores provide distribution, updates, and monetization opportunities that web apps don't have. Having an app in the App Store or Google Play establishes your brand presence on mobile devices.
What You Can Build with App Developers
App developers can build:
- Native iOS apps: iPhone and iPad apps using Swift, SwiftUI, and iOS frameworks
- Native Android apps: Android phone and tablet apps using Kotlin, Jetpack Compose, and Android SDK
- Cross-platform apps: iOS and Android apps from a single codebase using React Native or Flutter
- E-commerce apps: Shopping apps with product catalogs, cart, and checkout
- Social apps: Apps with real-time features, messaging, and content sharing
- Enterprise apps: Business apps with workflows, integrations, and security features
OUR STANDARDS
Mobile apps that users love, not just apps that work.
Releases pass through static code analysis, device-lab smoke tests, accessibility reviews, and performance budgets. We watch crash-free sessions, retention cohorts, and store sentiment so you never fly blind.
The squads you partner with mix senior engineers, QA analysts, and product strategists who measure success in user value. Expect candid feedback, roadmap foresight, and a relentless focus on results that outlive the engagement.
CONTACT US
Get in touch and build your idea today.