Flutter Mobile App Portfolio
EDI / B2B Integration Startup
Global (HQ USA)
3 years (ongoing)
Client: EDI-Based Integration Startup
20+ Flutter Mobile Apps Delivered for an EDI-Based Integration Startup
An EDI-Based Integration Startup scaling rapidly in the B2B data-interchange space chose SCM Software Lab as their long-term Flutter mobile app development partner. Over three years we've delivered 20+ production Android & iOS apps — trading partner dashboards, transaction monitors, approval workflows, analytics, compliance tools, and more.
20+
Apps Delivered3 yrs
Partnership1M+
Total Downloads4.7★
Avg App RatingThe Challenge
The startup was scaling fast in the EDI (Electronic Data Interchange) B2B integration space and needed a mobile development partner that could keep up with their product roadmap — often shipping a new Android+iOS app every 5-6 weeks. They'd tried freelancers and boutique agencies; neither could deliver consistent quality across a portfolio at startup velocity. They needed a dedicated Flutter team that felt like an extension of their engineering organization.
Our Solution
We embedded a dedicated Flutter squad (architects, developers, QA, DevOps, PM) into the client's engineering org and built a reusable Flutter design system + shared SDK so that every new app launched faster than the last.
- Shared Flutter SDK of 80+ reusable widgets, authentication flows, API clients, and offline-sync primitives — cuts every new app's MVP from 12 weeks to 5
- Unified design system with brand tokens, accessibility baseline, and dark-mode support across all 20+ apps
- EDI-specific modules — trading partner management, document-type viewers (850 / 856 / 810 / 997 / EDIFACT), transaction status monitors, error queues, SLA dashboards
- Approval workflow toolkit with push notification orchestration, approval chains, digital signatures, audit trails
- Analytics pack — real-time KPI tiles, Power BI embedding, drill-down with role-based access
- Offline-first architecture with SQLite, conflict-free replicated data types (CRDTs) for transaction queue resilience
- App Store + Play Store CI/CD — automated builds, beta distribution via Firebase App Distribution, staged production rollouts
- Dedicated SRE oversight — Crashlytics + Sentry per app, weekly release review, monthly portfolio health reports
Technologies Used
A pragmatic, battle-tested enterprise Java & open-source stack chosen for scalability, maintainability, and long-term fit.
FlutterDartJava Spring Boot (Backend)HibernatePostgreSQLMongoDBFirebase (FCM + Analytics + Crashlytics)SentryFastlaneGitHub ActionsAWSREST / GraphQL APIs
Results & Impact
20+
Apps in ProductionPortfolio of Android + iOS apps serving the client's EDI platform customers.
5 weeks
MVP to LaunchDown from 12 weeks on their first app — shared SDK + design system compounding over time.
1M+
Total DownloadsCumulative downloads across Google Play and Apple App Store.
4.7 / 5
Avg App RatingWeighted average across the portfolio; no app below 4.4 stars.
3 yr
Zero ChurnPartnership has renewed every year; dedicated squad has grown to 14 people.
99.7%
Crash-Free SessionsWeighted average via Crashlytics across all apps.
SCM Software Lab isn't a vendor for us — they're our Flutter engineering arm. We've shipped 20+ apps on their codebase, and the velocity compounds every quarter. When we need a new app, we talk to them on Monday and we have designs on Thursday.
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