/ 01
Design for mobile behavior
Shape navigation, input, device states, accessibility and interrupted journeys around real users and platform constraints.
Mobile App Development for Product-Focused Teams
iOS and Android. Backend and API integration. Device-level QA. Store release support. Existing case records verify mobile product design, development, backend integration and quality assurance for complex financial journeys.
A complete mobile product scope
/ 02
Connect the product backend
Integrate identity, product data, transactions, notifications and analytics through explicit API contracts and ownership.
/ 03
Build security into flows
Define authentication, secure storage, session behavior, permission checks and sensitive-data boundaries for the agreed risk model.
/ 04
Prepare release ownership
Document signing, store assets, review responses, staged rollout, monitoring, rollback and post-launch responsibilities.
Mobile products we can shape
Customer applications connect accounts, purchases or services with ongoing engagement. Employee applications support field and operational workflows. FinTech and mobile account products combine onboarding, identity, balances and transactions. Companion applications extend an existing platform or connected service. Modernization addresses fragile code, changing APIs, platform requirements and an outdated mobile experience.
Native or cross-platform?
Cross-platform fits when:
- Product behavior is largely shared, with controlled adaptation for each platform.
- Integrations use common APIs and supported device capabilities.
- The team benefits from shared code and coordinated releases.
Native fits when:
- The experience requires platform-specific interaction or deep system behavior.
- Specialized SDKs, hardware or background execution create separate constraints.
- The product can support distinct platform expertise and release paths.
The choice follows UX, device integrations, performance profile, accessibility, release cadence, team ownership and maintenance horizon. Our documented cross-platform stack includes React Native and Flutter. Native delivery is evaluated when platform-specific needs justify separate implementation; we do not assume identical behavior across iOS and Android.
What the delivery can include
Deliverables can include product discovery, prioritized scope, mobile UX research, flows and prototype, UI design and design system, application code, backend and API work, analytics instrumentation, test plan and device matrix, release configuration, store assets and submission documentation, runbooks, technical documentation and ownership handover. Estimates follow confirmed platforms, integrations, risk and release scope rather than a generic fast-MVP promise.
Critical capabilities defined by scope
Depending on scope, the product can include authentication and biometrics, secure local storage, offline reads or queued actions, push notifications, deep links, document and camera access, permission handling, analytics, crash reporting, logs and operational alerts. Each capability needs explicit behavior for denied permissions, expired sessions, network loss, duplicate requests, background transitions and unsupported devices. Inclusion is confirmed during discovery rather than implied for every app.
Selected mobile product work
Paylance Mobile: GARNO.TECH records verify product strategy, mobile UX research, design, mobile app development, backend integration and QA for onboarding, KYC/KYB, accounts, wallets, payments, cards, biometrics and notifications. Bonum 24 Mobile: the same roles are verified for crypto-to-fiat journeys, KYC, exchange calculation, wallet and bank details, transaction tracking and interrupted-flow recovery. The records identify mobile applications and REST API integration, but do not specify the framework, exact OS release coverage, store publication outcome or numerical business result; none is inferred.
How a mobile product moves to release
- /01Validate product scopeDefine users, platforms, critical journeys, backend dependencies, device capabilities, risks, evidence and measurable outcomes.
- /02Prototype and choose architectureTest risky interactions, select the delivery approach, define app and API boundaries, data behavior and release constraints.
- /03Deliver increments and device QABuild end-to-end slices, instrument analytics and diagnostics, and verify critical behavior on the agreed device and OS matrix.
- /04Release, observe and supportPrepare store submissions, respond to review findings, stage rollout, monitor production, handle incidents and transfer post-launch ownership.
Backend, cloud and release quality
A mobile scope can include a NestJS backend and deployment on Microsoft Azure when those choices fit the product. SaaS and FinTech provide relevant domain context for accounts, subscriptions and regulated journeys. Manual QA, QA automation and product deployment support risk-based verification and release operations. Each linked capability receives its own agreed scope.
Who owns the source code and store accounts?
Who owns the source code and store accounts?
Do you guarantee approval by the app stores?
Do you guarantee approval by the app stores?
Can you work with our existing backend?
Can you work with our existing backend?
What happens after launch?
What happens after launch?
How do you approach mobile security?
How do you approach mobile security?
How is a mobile app estimated?
How is a mobile app estimated?
The first step is a short technical discussion about users, platforms, backend, constraints and expected outcome.
We will identify the decisions and evidence needed to define a useful first mobile scope.