Digital Identity Verification App
How ZAPTA delivered a secure digital identity and contact management mobile app that keeps users’ details verified and up to date in real time, launched across Denmark and the USA with 5,000+ verified users
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Project snapshot
Engagement at a Glance
The client set out to solve a problem everyone recognizes: contact details go stale the moment they are saved. Instead of organizations storing outdated phone numbers, emails, and addresses, the vision was a platform where users hold a verified, live identity that trusted connections access directly, always current and under the user’s control.
Delivering this meant balancing strong security with everyday usability. Identities and shared data had to be authentic, contact lists had to stay synchronized in real time, and users needed fine-grained control over what they shared and with whom, across personal, social, professional, and enterprise contexts.
ZAPTA designed and delivered HandZhake, a secure mobile app built around trust, privacy, and flexibility. Identity verification through national eID and biometric checks, selective sharing through Cards, and networking through Relations and Nearby were combined with a web administration panel for governance, then launched through a phased rollout across Denmark and the USA.
5K+
Verified users on the platform
99%
Contact data kept current and verified
Multiple
Retail, restaurants, engineering, contracting
The challenge
What the client came to us with
Building trusted, real-time identity sharing surfaced five challenges, each about balancing security and privacy with a smooth everyday experience.
Data Accuracy & Authenticity
Trust
Ensuring shared identities and data were genuine called for advanced verification such as national eID and biometric checks without making the experience cumbersome.
Dynamic contact management
Real-time
Unlike a static address book, the app needed a constantly updated, categorized live contact list, which demanded reliable real-time synchronization across devices.
Selective information sharing
Privacy
The Cards feature had to let users share different sets of information in different contexts, a flexible architecture that never compromised privacy.
The solution
A secure, privacy-first identity platform
Four design decisions turned a demanding security and privacy brief into a usable, trusted app.
eID & Biometric Identity
Verification
National eID integration and biometric authentication, combined with end-to-end encryption, established authentic identities while keeping the platform GDPR-compliant.
Always-current contacts
Live data
Real-time synchronization keeps every connection’s details up to date, eliminating the stale contact information that organizations and individuals struggle with.
Cards for selective sharing Controls
Controls
Multiple card types let users tailor exactly what they share in each context personal, social, or professional giving them clear control over their information.
Relations & nearby
Networking
Relations and Nearby make discovering and maintaining connections simple, turning verified identity into a practical, everyday networking tool.
What Terry Said
Meticulous attention to detail and unwavering commitment to deadlines fuelled a fantastic project collaboration. Their consistent quality output showcases their reliability and deep understanding of the project, making them a true partner, not just a vendor. Bravo, ZAPTA!
Key features build
What we redesigned
A complete, AI-powered EdTech platform delivered from strategy through deployment, each capability tied to a real step in the learning journey.
National eID and biometric checks confirm that every identity on the platform is authentic, building trust from the first interaction.
A dynamic, categorized contact list stays synchronized in real time, so users always have current details for their connections.
Users create multiple card types to share different information in different contexts, keeping private details private by design.
Networking features help users discover nearby connections and maintain relationships, making verified identity genuinely useful day to day.
A fair, anonymous rating system surfaces meaningful feedback while guarding against misuse.
Granular role management and oversight tools give administrators the governance needed to scale toward enterprise adoption.
Results delivered
The outcomes that mattered
Value delivered across adoption, quality, and personalization, anchored by the platform’s real usage figures.
5K+ users
Verified users on the platform following launch.
99%
Contact data kept current, removing the problem of outdated details.
2 launched
Live across Denmark and the USA through a phased rollout.
Verified
eID and biometric verification establish authentic identities.
User-controlled
Selective sharing through Cards keeps users in control of their data.
Multiple
Supports personal, social, professional, and enterprise use cases.
Stack
The technology stack
A secure, cloud-ready web stack selected for real-time reporting, AI-powered legislative monitoring, and audit traceability. (Representative stack.)
React
Node.js
PostgreSQL
AWS
Redis
Stripe
Docker
REST APIs
Our three-phase delivery process
The same process ZAPTA applies to every engagement adapted to DrBroker’s six month, fixed-scope timeline.
Consult and align
- Discovery workshop to align goals, users, workflows, and outcomes.
- Requirement gathering and stakeholder interviews business, and compliance.
- Technology selection based on scale, performance, security, and long-term maintainability.
Discovery, strategy, planning, requirement gathering, roadmap alignment.
Design and engineer
- High-fidelity UX in Figma web, mobile, dashboard, and admin interfaces.
- System architecture covering data models, APIs, integrations, auth, and compliance.
- Agile sprints with weekly working demos and live client feedback loops.
UI/UX, architecture, development, testing, iteration.
Deploy and maintain
- Deployment to AWS, GCP, or Vercel with CI/CD pipelines and zero-downtime releases.
- Observability with Datadog, Sentry, or Grafana live from day one tracing, errors, and performance.
- Security hardening, access controls, and compliance-ready audit logging.
Launch, monitoring, support, optimization, scaling.
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