Step 01
Product and platform discovery
We define personas, critical flows, offline needs, and whether cross-platform or native is the right bet.
- Use cases and KPIs
- Platform recommendation
- Analytics and consent plan
Mobile App · Paris
MobileAppCompanyinParis
Users judge you in seconds on a small screen. We ship mobile experiences that load fast, handle flaky networks, and pass store review — using React Native, Flutter, or native Swift and Kotlin when the product demands it. One partner from product clarity to post-launch monitoring. Delivered for teams in Paris, France.
React NativeExpoFlutterDartSwiftKotlinFirebaseTypeScriptPush notificationsCI/CD
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🧩Need a custom flow? Let's shape it.
HIPAA & GDPR Compliant Development
Security-first architecture, privacy by design, audit-friendly logging.
14-Day Response SLA
Clear response windows for production incidents and change requests.
NDA Signed Day One
Confidentiality before discovery. Your data and roadmap stay private.
Technology stack
Tools we use — matched to your product, not a generic checklist
Representative technologies for this service line. We pick concrete libraries and services per project; names below reflect typical engagements.
Cross-platform
- React Native
- Expo
- Flutter
- Dart
Native
- Swift
- Kotlin
- iOS SDK
- Android SDK
Data and services
- Firebase
- REST / GraphQL APIs
- Local storage
Quality and release
- Unit and UI tests
- TestFlight / Play tracks
- Crash and analytics
Mobile delivery
How we take you from idea to store-ready builds
Platform choice, UX discipline, and release operations treated as one product — not three handoffs.
Step 02
UX and interface design
Component-driven UI, motion where it helps, and accessibility considerations baked into patterns.
- Screen maps and prototypes
- Design tokens and states
- Store listing visuals
Step 03
Engineering and QA
Feature increments with device testing, API integration, push, and security-minded storage.
- Build and integration sprints
- Automated and manual QA
- Beta distribution
Step 04
Release and live operations
Submission support, phased rollout, crash reporting, and iteration based on real usage — not guesses.
- App Store and Play compliance
- Production monitoring
- Release cadence after v1
Outcomes
Apps that survive review, networks, and everyday users
We optimize for retention and operational sanity: stable binaries, clear upgrade paths, and telemetry you can act on.
Cross-platform when it fits
React Native and Flutter for shared codebases and faster iteration — without pretending native constraints do not exist.
Native depth when it matters
Swift and Kotlin for performance-critical or platform-specific experiences where the extra investment pays off.
Integrated backends and messaging
Secure auth, APIs, push, and background work wired to how your product actually runs day to day.
Store and production discipline
Checklist-driven submissions, crash triage, and analytics loops so v1 is the start of learning — not the end of attention.
What clients say
Trusted by teams building in Paris and beyond
Real outcomes from recent engagements — as delivered for teams like yours.
“React Native + Expo let us ship iOS and Android simultaneously. First build hit the App Store in 6 weeks — App Store reviewers approved first try, no rejections.”
App Store approved on first submission
Alexei
Founder · D2C Wellness App
User-centered delivery
We optimize for tasks users repeat — not feature lists — so onboarding, empty states, and errors get the same care as hero flows.
Senior mobile engineers
People who have shipped through store policies, device fragmentation, and production incidents — and know how to de-risk the next release.
Aligned with your stack
We meet your existing APIs, auth, and observability tools instead of inventing parallel systems.
Transparent build rhythm
Regular builds you can install, visible backlog, and honest tradeoffs between scope, date, and polish.
Mr Sked
Time management SaaS with scheduling templates and payment workflow automation launched in weeks.
AGENTIC TIME MANAGEMENT
Mr Sked
Time management SaaS with scheduling templates and payment workflow automation launched in weeks. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case study
Zieny
AI-powered e-commerce visualization with 3D and AR product experiences that improved conversion.
AGENTIC ECOMMERCE
Zieny
AI-powered e-commerce visualization with 3D and AR product experiences that improved conversion. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case study
AI-Powered Search & Optimization Platform(AEO)
AI-driven search and optimization using LLMs, RAG, embeddings, and vector databases for automated insights and relevance.
AI / SEARCH
AI-Powered Search & Optimization Platform(AEO)
AI-driven search and optimization using LLMs, RAG, embeddings, and vector databases for automated insights and relevance. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case study
Swave
Proof-of-concept and market validation delivery with rapid product execution.
AGENTIC MOBILITY TECH
Swave
Proof-of-concept and market validation delivery with rapid product execution. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case studyAI-Powered Note-Taking Platform
Created intelligent note workflows that improve organization, speed up understanding, and make knowledge retrieval far easier.
PRODUCTIVITY AI
AI-Powered Note-Taking Platform
Created intelligent note workflows that improve organization, speed up understanding, and make knowledge retrieval far easier. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case study
Digital Mortgage & FinTech Platform
Digitized lending workflows to accelerate approvals, improve reliability, and reduce operational bottlenecks across teams.
FINTECH
Digital Mortgage & FinTech Platform
Digitized lending workflows to accelerate approvals, improve reliability, and reduce operational bottlenecks across teams. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
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Premium eCard Platform
A high-volume animated eCard platform covering birthdays, holidays, and seasonal campaigns with premium subscriptions and personalization workflows.
DIGITAL GREETING PLATFORM
Premium eCard Platform
A high-volume animated eCard platform covering birthdays, holidays, and seasonal campaigns with premium subscriptions and personalization workflows. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case study
Healthcare Management System
Centralized care operations with better patient workflow visibility, stronger reporting, and improved operational efficiency.
HEALTHCARE
Healthcare Management System
Centralized care operations with better patient workflow visibility, stronger reporting, and improved operational efficiency. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
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Luxury E-commerce Platform
Scaled international commerce operations with stronger conversion performance, faster fulfillment experiences, and higher retention.
E-COMMERCE
Luxury E-commerce Platform
Scaled international commerce operations with stronger conversion performance, faster fulfillment experiences, and higher retention. We delivered scalable catalog handling, campaign-ready content operations, and subscription-focused user flows designed for engagement and retention.
View case studyIndustries
Bringing Transformation Across Industries with Unmatched Innovation
Driving transformation across industries with breakthrough technology, we fuel growth and unlock potential. Our tailored IT solutions empower businesses to thrive in a digital-first world.
See how we help teams win
Case Studies & Insights
We partner with ambitious teams to solve real problems and drive lasting results.
Startups · Aug 14, 2026 · 14 min read
Bootstrapping vs VC in 2026: The End of Growth at All Costs
The venture capital model is recalibrating. For 90% of SaaS founders in 2026, bootstrapping to profitability before seeking a Series A—or never raising at all—is the highest-probability path to wealth.
Enterprise · Aug 5, 2026 · 12 min read
Securing SaaS: Zero-Trust Architecture Is Now the Baseline Requirement
Enterprise procurement teams no longer accept a generic security page. If you want to sell your SaaS to Fortune 500s in 2026, Zero-Trust Architecture and automated compliance are price-of-entry.
Development · Jul 28, 2026 · 8 min read
Low-Code for Internal Tools: Stop Wasting Engineering Hours on Admin Panels
Your senior engineers should be building features that drive revenue, not spending three sprint cycles building a custom admin dashboard for the operations team. Retool and its clones have won the internal tools war.
Business · Jul 20, 2026 · 10 min read
Why NRR (Net Revenue Retention) is the Only SaaS Metric VCs Care About
Growth at all costs is over. In 2026, venture capitalists look past top-line revenue and immediately drill into Net Revenue Retention to determine if a software business is actually sustainable.
Architecture · Jul 12, 2026 · 13 min read
API-First Architectures & MCP: The New Integration Standard
The Model Context Protocol (MCP) has fundamentally shifted how SaaS applications expose data to AI agents. Building API-first is no longer a best practice; it is a survival requirement.
Marketing · Jul 3, 2026 · 9 min read
Data-Driven Content as a Moat: Beating Generic SEO in 2026
With LLMs generating millions of average blog posts every day, traditional SEO is rapidly losing ROI. SaaS companies are fighting back by publishing proprietary data that AI can't synthesize.
Frequently Asked Questions
Common questions teams in Paris ask about this service.
Mobile app development in Paris starts around $10,000–$20,000 for an MVP. Cross-platform apps (React Native / Flutter) are typically 30–40% more cost-effective than building separate native apps. Complex apps with backend APIs and AI features range from $30,000–$100,000+.