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Hire Cross-Platform Mobile App Developers

Unleash the Power of Compatibility & Scalability

Hire Cross-platform app Developers to deliver a boundless experience by creating highly-compatible cross-platform mobile applications. While you are looking forward to unlocking the multi-platform advantage, our cross-platform team is just a click away!

Hire Cross-platform app Developers
  • Flexible Engagement Models
  • Strict NDA
  • 1 Week Risk-Free Trial

A Proven Team You Can Rely On

Add senior, vetted engineers without the hiring risk, backed by years of delivery and a team that stays.

7+

Years Building Custom Software

90+

Team Members Including Cross-Platform Specialists

72+

Apps Live on App Store & Play Store

95%

Team Retention Rate

Trusted by Startups and Enterprises Worldwide

Custom Software Development Success Stories

Hear It Directly From the Founders Who Built With Us

Real founders, CEOs, CTOs, and product owners behind 102+ shipped products across 14 industries share what working with SolGuruz looked like. Every story is one of 133+ independently verified client reviews across Clutch, Google, Glassdoor, and other platforms, averaging 4.9 ★★★★★ ratings.

Frame 01 / 04

Custom Software Solution Development / Driver Dashboard & Invoice Automation for Food Service Company

SolGuruz has delivered a solution that has reduced 90% of manual efforts through automation and provided real-time insights for supplier fulfillment and order volume trends. The team is responsive to requests and changes, and their proactive approach to problem-solving has stood out.

Summarized from Gary Boyd's Clutch review

Gary Boyd

CEO and Owner, Tasty Food Guys | Florida, USA

Read Clutch Verified Review
Tasty Food Guys

Our Expertise

Cross-Platform App Development Services, Our Expertise

Expanding your audience reach and simplifying the development process, we help you build responsive mobile apps for all operating systems. Hire dedicated cross-platform app developers for the following services.

Pick the Best Cross-Platform App Developers

Let’s schedule the interview process to bring the best cross-platform mobile app developers aboard.

Cranes lowering Flutter and React Native tiles into a smartphone app screen beside a construction worker

Why SolGuruz as Your Cross-Platform App Development Company?

We help elevate your app’s experience by offering innovative yet secure cross-platform app development services. Here is why you must hire our mobile development company.
  1. 01

    Up-to-date with Trends

    Our cross-platform devs stay up-to-date with the latest trends in native platforms, making it easy for your business to design an app leveraging recent trends and news.

  2. 02

    Best Technological Infrastructure

    SolGuruz offers the latest tools and stack to the development team. Our cross-platform mobile developers get access to everything latest & trending for developing robust apps.

  3. 03

    Flexible Hiring Models

    We understand that each client has different hiring requirements. At SolGuruz, we offer part-time, full-time, and hourly hiring models for all the technology niches.

  4. 04

    Agile Methodology

    Developing a cross-platform app requires a strict format or system. Understanding what is easy to keep our clients updated & informed, we follow the trending agile methodology.

  5. 05

    Consistent Tech Support

    Be it mobile app upgradation or maintenance, our cross-platform support team is all set to help you resolve the bugs. Expect our mobile app Devs with consistent tech support.

  6. 06

    Experienced & Talented

    We are proud to help you interview and select the best Devs from our cross-platform app development team. Our cross-platform programmers are experienced in building high-performing & compatible apps.

Cross Platform Developer Cost Comparison: India vs Europe vs USA (2026)

Compare the costs and capabilities of hiring remote cross platform app developers - experts in frameworks like React Native, Flutter, Xamarin, and others that enable building multi-platform applications from a single codebase - across India, Europe, and the USA. Details include hourly rates, developer skills, and key operational considerations for agencies and startups.

ParameterIndiaEurope (CEE & Western)USA
Hourly Rate$15 - $55/hr$40 - $95/hr (CEE) / $60 - $130/hr (Western)$65 - $200/hr
Expertise & CertificationsLarge talent pool skilled in React Native, Flutter, Xamarin. Frequent upskilling & certifications in leading cross-platform frameworks.Strong engineering culture, broad experience in React Native, Flutter, Xamarin; high technical certifications.Highly skilled, advanced in all major cross-platform frameworks, but at a premium.
English ProficiencyAbove global average in IT sector.High in Western Europe, good to high in CEE.Native.
Project ManagementMature Agile/Scrum adoption, widespread PM tool usage (Jira, Trello).Well-established Agile/Scrum processes, especially in Western Europe.Very mature, industry-standard practices.
Health Insurance CostVery low ($500-$1,000/yr per employee, often employer covered).Moderate to high ($2,000-$4,000/yr per employee).Very high ($7,000-$15,000/yr per employee, typically employer-sponsored).
Office Operation CostVery low (rent/utilities/admin up to 70% lower than US/EU).Moderate (CEE < Western Europe).Highest globally.

Hiring Cross Platform App Developers from SolGuruz vs. In-house vs. Freelance Developers

Compare your hiring options for cross platform app developers - multi-framework experts using tools like React Native, Flutter, and Xamarin - across SolGuruz, in-house teams, and freelance platforms. Assess speed, cost, scalability, and long-term suitability for ambitious projects.

ParameterSolGuruz Dedicated TeamIn-House Full-TimeFreelance Platforms
Time to Hire1-2 weeks (pre-vetted multi-framework experts)6-12 weeks (recruitment + notice)1-4 weeks
Up-Front CostZero recruitment fees15-25% hiring expense (agency, HR)Platform + 10-20% markup
Retention/Ramp-Down RiskContract-based; flexible scaling and replacementsHigh - salary, notice, severanceHigh turnover, variable availability
Management OverheadSolGuruz PM-led oversight, weekly stakeholder demosFull HR, payroll, PPO, infra, admin supportMostly self-managed
IP & SecurityNDA, ISO-27001 workspace, contractually enforced securityDirect, in-house hardware/software controlsVaries by individual/freelancer
24×7 SupportOptional global time zone coverageTypically local business hoursDepends on freelancer
Hidden CostsNone - tools, health, and infra bundledBenefits, real estate, payroll burdensEscrow fees, scope/schedule creep
Ideal ForProduct launches, long-term evolution, cost-efficient scalingCritical proprietary apps, sensitive dataPrototypes, minor features, rapid MVPs

Technical Skills of Our Cross Platform App Developers

Accelerate your app development with cross platform experts from SolGuruz. Our developers build consistent, high-quality apps across Android and iOS using frameworks like React Native, Flutter, or Xamarin. Here’s how their skillset adds robust value to your project.

SkillDescriptionWhy It Matters For Your Cross Platform App Project's Objectives
Multi-Framework ProficiencyDeep expertise in React Native, Flutter, and Xamarin for unified codebase delivery.Ensures flexibility in framework selection for performance, UI/UX, and business fit.
JavaScript, Dart & C# SkillsAdvanced coding in JavaScript/TypeScript (React Native), Dart (Flutter), and C# (Xamarin).Enables your team to select the right tech, maintain code, and quickly onboard additional talent.
UI/UX Design for Multi-PlatformExpertise in responsive and adaptive UI using native design guidelines (Material, Cupertino, Fluent).Apps look and work naturally across Android, iOS, and even web (where supported).
State ManagementImplementation of architecture and tools such as Redux, MobX, Provider, Bloc, Riverpod.Delivers scalable, maintainable app architectures even as your product grows.
Native Module IntegrationAbility to bridge native APIs and modules for device features (camera, sensors, biometrics).Enables native performance and hardware access without separate codebases.
API & Backend IntegrationRESTful APIs, GraphQL, Firebase, and secure offline/local data sync.Facilitates dynamic features like authentication, notifications, real-time data.
App Testing & DebuggingManual and automated UI, integration, and unit testing; use of tools specific to each framework.Ensures smooth launches and stable performance post-release.
CI/CD & DeploymentSetup of continuous integration pipelines for build, test, and multi-store deployment.Reduces time-to-market with reliable app update cycles.
Cloud & DevOps ReadinessCloud build, analytics, crash reporting, and push notifications.Optimizes for scale, monitoring, and engagement features without tech bottlenecks.
Security Best PracticesEnd-to-end encryption, secure storage, platform-compliant privacy controls.Keeps your business and user data safe across platforms.

Hire Expert Cross-Platform Developers With Our Flexible Engagement Models

Make a difference in your business by leveraging the experience of our cross-platform app experts at SolGuruz. Here are the flexible engagement models to choose from.

  • MOST POPULAR

    Full Time

    • 8 hrs/day
    • 160 hrs/month
  • Part Time

    • 4 hrs/day
    • 80 hrs/month
  • Hourly Basis

    • Flexible hours
    • 60 hrs minimum

Steps to Hire Cross-Platform Development Experts from SolGuruz

Here are five easy and quick steps to hire remote cross-platform developers from SolGuruz.

  1. Discuss Your Requirements (24 Hours)

    Schedule a call with our development team. Discuss your basic requirements and allow our team to schedule the interview and selection process.

  2. Developer Profile Selection (24-48 Hours)

    Choose the best cross platform mobile app developers by reviewing profiles and conducting interviews within 48 hours.

  3. Interview and Select Developers (24-48 Hours)

    We deliver the ultimate freedom to you in conducting the interview session for selecting the best cross-platform app developers for hire.

  4. Sign the NDA

    To maintain confidentiality regarding the project, we follow the practice of signing the NDA between two parties.

  5. Get Our Cross-Platform Engineers Onboard in 72 Hours

    Once the selection is completed from your end, it takes 72 hours to onboard the cross-platform devs for your esteemed project.

How Does Our Cross-Platform App Development Process Work?

A detailed but quick summary of how our development team builds compatible apps for you!

  1. 01 / 06

    Demand & Ball-park Quotation Phase

    • Know Client’s Demand
    • Initial Research
    • Ball-Park Quotation
    • Propose Solution
  2. 02 / 06

    Project Discovery Phase

    • Client/stakeholder Interview
    • Market and User Research
    • Competitor Analysis
    • User Flow Creation
    • Write User Stories and Prepare Requirement Documents
  3. 03 / 06

    Wireframe & Design Phase

    • Visual Inspiration Research and Mood Board Creation
    • Low-fidelity Wireframes Design
    • UI designs and Prototyping
    • User Testing, Usability Testing
    • Development Handoff
  4. 04 / 06

    Development Phase

    • Project & Sprint Planning
    • Daily Scrum Calls
    • Coding the App
    • Code Review and Merge
    • Automated Deployment via CI/CD
    • Weekly Client Demos
    • Weekly Reports & Timesheet
    • Client’s feedback
  5. 05 / 06

    Testing Phase

    • Write Unit Test Cases
    • Perform Quality Assurance
    • Performance Testing
    • Load Testing
    • 100% bug-free
    • Get Client’s Approval
  6. 06 / 06

    Deployment Phase

    • Sanity Check on Release builds
    • Deploy Backend over Production Server
    • Release builds over Stores
    • Alpha/Beta testing
    • Collect feedback for the final release
    • Public launch for the users

How we engineer

Our AI-Native Engineering Standards

AI-native by practice, engineer-led by principle. These are the rules every SolGuruz team works to, on every project, whatever the stack or industry.

  1. 01Architecture and Design Quality

    • Spec-Driven Requirements

      Every feature has written acceptance criteria and a traceable spec before development starts, and AI checks the spec for gaps, conflicts, and missing edge cases.

      Engineer-ledEngineers review every spec for feasibility before it’s estimated.

    • Architecture Standards

      Architecture, data model, state management, and integrations follow proven patterns for scale, security, and maintainability, and every key decision is documented.

      Engineer-ledAn engineer signs off every architecture decision.

    • Design System and Accessibility

      Every screen is built from a shared design system in Figma, with AI-assisted accessibility checks and design-to-code handoff.

      Engineer-ledDesigners own every design decision and its consistency across devices.

  2. 02Code Quality and Security

    • AI-Assisted Development, Human-Owned Code

      Developers use Claude Code, GitHub Copilot, and Cursor for scaffolding, boilerplate, and repetitive patterns, never for unreviewed logic.

      Engineer-ledEngineers own the logic and review every AI-generated change.

    • Coding Standards, Git Flow and Peer Review

      Code follows agreed conventions and a Git Flow branching model, and AI-assisted review flags issues on every commit.

      Engineer-ledA second developer reviews every change before it merges.

    • Secure and Compliant by Default

      ISO 27001 and ISO 9001 certified processes, SOC 2-aligned controls, least-privilege access, and encryption in transit and at rest, with HIPAA-aligned safeguards where health data is involved.

      Engineer-ledAn engineer owns every security review.

  3. 03Testing and Release Safety

    • AI-Generated Tests and Manual QA

      AI generates unit tests, edge cases, and regression suites from the codebase, and automated suites run on every build.

      Engineer-ledQA engineers test the real user flows by hand before every release.

    • Static Analysis and CI/CD Pipelines

      Static code analysis scans every commit, and CI/CD pipelines build, test, and deploy across development, staging, and production.

      Engineer-ledEngineers set the quality gates the pipeline enforces and fix what the scans flag.

    • Release Safety

      Every release has staged environments, a tested rollback plan, and alpha and beta builds for internal and external users before full rollout.

      Engineer-ledEngineers review release metrics before each rollout phase.

  4. 04Reliability and Ownership

    • Observability

      Crash reporting, performance monitoring, and usage analytics are live from launch day, with alerts routed to the team that built the product.

      Engineer-ledEngineers act on every alert and track trends for the life of the product.

    • Data-Driven Iteration

      Product analytics are instrumented from launch, and new features are prioritized from user feedback and data, not guesswork. For clients without an in-house marketing team, we also run the growth strategy.

      Engineer-ledEngineers turn analytics into the backlog for each release.

    • Documentation, Ownership and Ongoing Support

      AI keeps API references and technical docs in sync with the code, and maintenance plans keep the product secure and up to date.

      Engineer-ledYou get full repository access and IP ownership, and one in-house team stays accountable for the outcome.

Industry Expertise: Finding the Right Fit

Our developers have shipped products in these industries, so they arrive knowing your compliance rules, integrations, and users.

Tech Stack, Which We Use for Cross-Platform Mobile
Application Development

We use the latest technologies and tools for building hybrid and cross-platform apps.

  • Claude Code
  • GitHub Copilot
  • Cursor
  • Windsurf
  • v0
  • Gemini
  • Codex
  • Banani
  • Figma Make
  • Uizard
  • Pencil Dev
  • Stitch
  • Kiro
  • Antigravity
  • User-doc
  • Miro AI
  • Whimsical AI
  • Flutter
  • Android
  • Apple
  • React Native
  • TypeScript
  • JavaScript
  • ReactJs
  • Electron
  • Angular
  • WordPress
  • Webflow
  • FlutterFlow
  • Java
  • PHP
  • Node.js
  • Python
  • Laravel
  • Django
  • FastAPI
  • Flask
  • Nestjs
  • Feathersjs
  • Strapi
  • Netlify
  • Contentful
  • Storyblok
  • Butter CMS
  • Directus
  • TensorFlow
  • PyTorch
  • OpenCV
  • Hugging Face
  • Kaggle
  • OpenAI
  • Anthropic
  • Ollama
  • Claude
  • Voiceflow
  • Vapi AI
  • Perplexity.Ai
  • Stable Diffusion
  • CrewAI
  • N8n
  • Langflow
  • Keras
  • LangChain
  • Google Colab
  • Rasa
  • Llama 4
  • PaLM 2
  • MYSQL
  • AmazonDynamoDB
  • Firebase
  • Firestore
  • Supabase
  • PostgreSQL
  • Oracle
  • Redis
  • MongoDB
  • Cassandra
  • Elasticsearch
  • Pinecone
  • Pgvector
  • Weaviate
  • AWS
  • Digital Ocean
  • Google Cloud
  • Twilio
  • Docker
  • Kubernetes
  • Azure
  • Mocha
  • JMeter
  • Appium
  • SoupUI
  • Jest
  • Maven
  • Test NG
  • Selenium
  • Cucumber
  • Postman
  • Cypress
  • Rest-Assured
  • TravisCI
  • CircleCI
  • Gradle
  • Jenkins
  • Github-Actions
  • Bitbucket-Pipelines
  • Gitlab CI/CD
  • SonarQube
  • Grafana
  • Codemagic
  • Terraform
  • Bamboo
  • Vercel
  • GitLab
  • Git
  • Github Actions
  • Nginx
  • PM2

How Cross-Platform Mobile App Designers Help You Elevate the User Experience?

Hire our dedicated Cross-Platform app designers to leverage their expertise in designing visually appealing mobile apps. Our developers build user-friendly and customized apps for your business needs.

  • Cross-Platform App UI/UX Design

  • Cross-Platform App Design Audit

  • Creating Design Systems

  • Wireframing and Prototyping

  • Cross-Platform App Design Modernisation

  • Cross-Platform App Design Upgrade

  • Cross-Platform App UI/UX Consultancy

Choose Us As Your Cross-Platform Development Partner

Let Our Cross-Platform Consultants Help you Out

Cross-Platform Work You Can Inspect

See the reusable Flutter groundwork our team ships in public - a Flutter architecture CLI, an open-source boilerplate, and a published widget that show how we build apps for iOS, Android, and web.

SG CLI - Flutter Architecture Generator
SG CLI - Flutter Architecture Generator logo
226 downloadsFlutter / Dart · Apache-2.0

SG CLI - Flutter Architecture Generator

Scaffold a production Flutter project in one command: BLoC state management, type-safe navigation, a light and dark design system and 48+ widgets. Ten commands then generate screens, bottom sheets, dialogs and BLoC events, registering their routes as they go.

Skelter - Flutter Boilerplate
Skelter - Flutter Boilerplate logo
130★ · 28 forksFlutter · Apache-2.0

Skelter - Flutter Boilerplate

The Flutter starter that preceded SG CLI: auth flows, scalable state management, reusable UI components and a modular architecture, cloned as a repo rather than generated by a command.

Multi Selection Filter
Multi Selection Filter logo
19 pub.dev likesFlutter · MIT

Multi Selection Filter

A lightweight, drop-in Flutter widget for multi-select filtering in list and catalog UIs, published on pub.dev.

What Our Clients Say

Explore the latest reviews from our existing clients to get a better picture of our services and collaboration.

Top Clutch Android App Development Company Nova Scotia 2026
Top Clutch App Development Company Nova Scotia 2026
Top Clutch iPhone App Development Company Nova Scotia 2026
Top Clutch Flutter Developers Ahmedabad 2026
Top Clutch Kotlin Company Ahmedabad 2026
Advertising & Marketing

Mobile App Dev & UX/UI Design for Digital Marketing Company

SolGuruz delivered a Figma file on time, indicating the success of the project. The team kept the client updated and discussed progress through virtual meetings and email. Their regular updates and responsiveness made them stand out.

Lawrence review for SolGuruz

Summarized from Lawrence's Clutch review

Lawrence, Founder, Lookbooklab

United StatesReno, Nevada, United States

Mar. 2024 - Aug. 2024
Health & Fitness

Fitness Mobile App Development for Wellness & Fitness Company

The app was delivered ahead of schedule, leaving the client impressed with SolGuruz' efficiency. The vendor ensured a seamless customer experience by always addressing queries and requests promptly. Moreover, they worked flexibly to accommodate any ad hoc tasks and followed a professional approach.

Arinze review for SolGuruz

Summarized from Arinze Pascal's Clutch review

Arinze Pascal, CEO, Bakoomba Fitness

UsaMiami, Florida, United States

Dec. 2022 - Jan. 2023
Arts, entertainment & music

Event Management Website & Mobile App Development for Annual Kite Festival

SolGuruz delivered a user-friendly app and website that streamlined event management, online ticket sales, and entry times, saving the client 30%-40% of the time previously spent on these tasks. The team excelled in project management, keeping everything on track and communicating clearly.

Pratik Patel review for SolGuruz

Summarized from Pratik Patel's Clutch review

Pratik Patel, Director, Atlantic Kite Festival

CanadaHalifax, Nova Scotia, Canada

Jun. 2025 - Oct. 2025

From Our Portfolio

Cross-Platform Apps Our Team Has Delivered

SolGuruz has 87+ happy clients with a 99.9% delivery rate. See the cross-platform applications our team has shipped - consumer apps, utilities, and productivity tools built once and deployed to iOS and Android with native-quality performance and user experience.

  • AI Journaling App Development Solution

    AI Journaling App Development Solution

    Discover with us how we built Dream Story, an AI-powered journaling application that helps manage daily notes by capturing your thoughts and emotions. A one-stop solution for those who love noting down daily summaries!

    Key Outcomes

    14-16 Week
    Delivery Timeline
    5.0★
    App Store Rating
    51+
    Product Hunt Upvotes
    28
    Verified Reviews
  • Daily Affirmation App for Positive Growth

    Daily Affirmation App for Positive Growth

    A Transformative Journey of Building Mind Rise: A Daily Affirmation App Built Around Positivity, Mindfulness, and a Calm Digital Experience.

    Key Outcomes

    6-8 Week
    Delivery Timeline
    AI + Mood
    Affirmations Tied to Live Mood Logs
    Offline-First
    Architecture
    3 Platforms
    iOS, Android, Web
  • Radon Mitigation System

    RadonSketch: AARST-Compliant Radon Mitigation App Delivered in 3 Months

    RadonSketch replaces paper checklists and hand-drawn diagrams with AARST-compliant digital workflows for field professionals across USA and Canada.

    Key Outcomes

    <3 Months
    Delivery Timeline
    App Store
    Concept to Live
    15+
    AARST Compliance Rules
    3 Tiers
    Free Trial, Pro, Enterprise
  • MI Football Social Community App Connecting Fans & Pubs on Matchday

    MI Football Social Community App Connecting Fans & Pubs on Matchday

    MI Football Social Redefines Fan Connection with a Football Community App that Boosts Engagement, Enhances Interaction & Unites Fans under one Digital Platform

    Key Outcomes

    5-6 Month
    Delivery Timeline
    1,792+
    Total Users (May 2026)
    0%
    Crash Rate
    666
    Total Pubs (May 2026)

Who Else Does Your Product Need?

Mobile products rarely need just one skill set. Native, cross-platform and design specialists often work side by side, so these are the mobile roles that work most closely with this one, vetted to the same standard.

Often paired with Cross-PlatformFlutter Developers

Add Flutter developers when one codebase should ship to iOS, Android and the web without losing a native feel.

Hire Flutter Developers

Frequently Asked Questions

Quick answers to the questions our clients and prospects ask most. If yours is not here, our team is one click away.

Jay Nandwana Technical Business Consultant at SolGuruz

Jay NandwanaSenior Technical Business Consultant

Need advice tailored to your project?

FAQs cover the common ground. For decisions specific to your tech stack, timeline, and team, talk to Jay and the team, who have shipped what you are planning.

Cross-platform mobile applications use a single-code database, which saves time for developing apps, lowers the budget than native apps, and helps with excellent compatibility over various platforms.

Depending on the app type, size, features, third-party APIs, and any advanced requirements, the time and cost of the mobile app vary. Let’s discuss your needs to help you give an approximate time frame.

It takes a minimum of 48-72 hours after the final interview to have our cross-platform mobile app developers aboard your esteemed project.

During the interview and selection process, you can easily cross-check everything from the experience to the expertise of our cross-platform developers. We always present genuine information about our development team.

While you hire Cross-Platform developers from us, we help you choose from hourly, part-time, and full-time hiring models. It solely depends on your project requirements, and our cross-platform development team shall help you understand as well to know which hiring model best suits your budget and timeline.

We follow an agile methodology for building a cross-platform app using React Native or Flutter. The development steps include concept, design, testing, deployment, and maintenance.

A good cross-platform development company can help you to hire cross-platform developers that are best at designing and developing cross-platform apps.