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Cross-Platform Wallet App Re-Design and Re-Build

From legacy Cordova to modern Flutter in six months—delivering an intuitive, certified-secure experience for every Versatec cardholder

Product designQA & releaseEngineering
Cross-Platform Wallet App Re-Design and Re-Buildcollections_bookmarkPortfolio
calendar_todayMay 30, 2026schedule1 min readdrawProduct design
Duration6 months
Headline Results3 Flutter devs,1 QA engineer, 1 PM
TeamiOS & Android (single Flutter code-base)
ToolsFlutter, Dart, Firebase Auth, .NET REST APIs, Microsoft SQL - OWASP MASVS compliant

On this page

  • THE CHALLENGE
  • THE SOLUTION
  • 1 • Discovery & UX Overhaul (Weeks 1-5)
  • 2 • Lean Cross-Platform Engineering (Weeks 6-24)
  • 3 • Quality & Compliance
  • THE OUTCOME
listOn this page6 sectionsexpand_more
  • THE CHALLENGE
  • THE SOLUTION
  • 1 • Discovery & UX Overhaul (Weeks 1-5)
  • 2 • Lean Cross-Platform Engineering (Weeks 6-24)
  • 3 • Quality & Compliance
  • THE OUTCOME

From legacy Cordova to modern Flutter in six months—delivering an intuitive, certified-secure experience for every Versatec cardholder

linkTHE CHALLENGE

  • Obsolete technology – Ionic Cordova ceased active support, blocking OS upgrades and security patches.
  • Single-platform reach – iOS users were completely unserved.
  • Poor usability – Customers struggled to locate balances, freeze cards, or make third-party transfers.
  • Code abandonware – No documentation or CI/CD pipeline; hard-coded secrets in the repo.

Versatec needed a total product reset—but without repeating the two-year misadventure that stalled growth.

Cross-Platform Wallet App Re-Design and Re-Build

linkTHE SOLUTION

link1 • Discovery & UX Overhaul (Weeks 1-5)

  • Stakeholder & user interviews uncovered the top pain points and success criteria.
  • Rapid wireframing in Figma; validated flows for balances, card blocking/unblocking, and peer transfers.
  • FigJam roadmap workshop prioritized releases: V2 (must-haves) → V2.1 (nice-to-haves) → V3 (innovations).

link2 • Lean Cross-Platform Engineering (Weeks 6-24)

  • Flutter rebuild: one code-base, native look & feel on iOS and Android.
  • Domain-driven architecture decoupled UI from Versatec’s payment APIs.
  • Security baked in: Firebase Auth with biometric fallback; secure key store for tokens; MASVS L2 penetration test passed on the first attempt.
  • CI/CD (GitHub Actions + Fastlane) auto-signed and shipped nightly builds for QA.

link3 • Quality & Compliance

  • 800+ automated tests (unit, widget, and end-to-end) keep regressions near zero.
  • App Store / Play Store hardening checklists integrated into the Definition of Done.
Cross-Platform Wallet App Re-Design and Re-Build

linkTHE OUTCOME

  • Full cross-platform coverage: 100 % of Versatec’s customer base now has native iOS and Android access.
  • Usability leap: Average task completion time fell 63 %, and App Store rating jumped from 2.3 ★ → 4.6 ★ within three months of release.
  • Speed to market: Re-engineered in ¼ of the time it took to build the original Cordova app.
Cross-Platform Wallet App Re-Design and Re-Build

NetForemost rescued CardDash from technical debt and turned it into a flagship product. Our customers love the new experience, and our execs love the velocity.

Santino Tapia, VP of Business Development, Versatec

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