Legacy dApp Mobile Migration

overview

SECURE, AUDIT-READY CODE

Smart Contract Development

Production-grade smart contracts built for security, scalability, and seamless integration.

We architect and deploy secure, gas-optimized smart contracts on EVM chains like Ethereum, Polygon, and Arbitrum. Our development process is built on OpenZeppelin standards and includes comprehensive unit testing with Hardhat or Foundry to ensure reliability from day one.

Custom Logic: Tailored Solidity 0.8+ contracts for DeFi, NFTs, DAOs, and enterprise use cases.
Security-First: Proactive vulnerability mitigation and audit-ready code structure.
Full Lifecycle: From specification and development to deployment, verification, and on-chain monitoring.

Deliver a secure, functional foundation. We focus on clean architecture and maintainable code so you can scale with confidence, not technical debt.

key-features-cards

PROVEN PROCESS

Our Mobile Migration Methodology

A structured, four-phase approach to modernize your legacy mobile dApp, minimizing risk and maximizing user retention. We deliver a production-ready, high-performance application with zero downtime.

Phase 1: Architecture & Audit

We conduct a comprehensive technical audit of your existing mobile dApp, mapping dependencies, identifying bottlenecks, and designing a modern, scalable architecture using React Native or Flutter with native modules for optimal performance.

72 hrs

Initial Audit

100%

Risk Assessment

Phase 2: Secure Wallet Integration

Replace outdated SDKs with secure, modular wallet connectors (WalletConnect v2, Privy, Dynamic). We implement best-in-class key management, session security, and seamless cross-platform signing experiences.

< 100ms

Sign-in Time

SOC 2

Compliance

Phase 3: Performance Optimization

Rebuild core components for native speed. We implement efficient state management (Redux, Riverpod), optimize RPC calls with batching, and ensure sub-2-second screen loads for complex DeFi interactions.

60 FPS

UI Performance

-70%

Data Load

Phase 4: Testing & Deployment

Rigorous testing across devices and OS versions using Detox/Appium. We manage the full App Store & Play Store submission process, including compliance checks, and provide post-launch monitoring for 30 days.

99.9%

Test Coverage

< 2 weeks

Store Approval

benefits

FROM LEGACY DAPP TO MOBILE GROWTH

Business Outcomes of a Mobile-First PWA

Migrating your legacy dApp to a mobile-first Progressive Web App unlocks measurable business value. We deliver PWA solutions that drive user adoption, engagement, and revenue.

Accelerated User Onboarding

Native-like mobile experience eliminates app store friction. Users can onboard directly from a browser with a single tap, reducing acquisition cost and time-to-first-transaction.

90%

Faster Onboarding

0 MB

App Store Download

Enhanced User Engagement & Retention

Push notifications, offline functionality, and home screen installation drive daily active users (DAU). Re-engage users directly without relying on centralized platforms.

Higher Engagement

60%

Better Retention

Reduced Development & Maintenance Costs

Single codebase for web and mobile eliminates the need for separate iOS/Android teams. Automatic updates bypass app store review cycles, cutting operational overhead.

50%

Lower Dev Cost

Instant

Update Deployment

Secure, Non-Custodial Wallet Integration

Seamless integration with WalletConnect, MetaMask Mobile, and embedded MPC wallets. Maintains self-custody principles with a mobile-optimized UX for signing and approvals.

100%

Non-Custodial

< 3s

Transaction Signing

Cross-Platform Performance Parity

Consistent, high-fidelity experience across iOS, Android, and desktop from one deployment. Leverages device hardware for smooth animations and responsive interactions.

99+

Lighthouse Score

All Platforms

Single Build

Future-Proof Architecture

Built with React, Next.js, and service workers for long-term maintainability. Modular design allows easy integration of new chains, protocols, and DeFi primitives.

Zero Legacy

Technical Debt

Modular

Protocol Integration

From Legacy Mobile SDK to Modern Web3Kit

Typical 6-Week Migration Timeline & Deliverables

A phased, milestone-driven approach to migrating your legacy dApp (e.g., Web3.js, ethers v4) to a modern, performant mobile stack with Chainscore's Web3Kit.

Phase & Key Deliverables	Week 1-2: Discovery & Audit	Week 3-4: Core Migration	Week 5-6: Testing & Launch
Technical Architecture Review
Legacy Code Dependency Audit Report
Gas Optimization Analysis	Basic	Advanced	Final
Core Smart Contract Interaction Layer			Optimized
Wallet Connection & State Management			Stable
Transaction Builder & Signer Module			Final
Performance Benchmarking		Initial	Final (Target: <2s TTFB)
Security & Penetration Testing		Internal	External Audit Ready
App Store / Play Store Compliance Check
Post-Launch Monitoring Setup

tech-stack

MIGRATION ENGINEERING

Technology & Protocol Expertise

We specialize in the precise, secure migration of legacy mobile dApps to modern, scalable Web3 architectures. Our team's deep protocol expertise ensures your application logic, user assets, and security posture are flawlessly transitioned.

Cross-Chain Smart Contract Migration

We migrate and refactor your core business logic from legacy mobile frameworks to production-grade smart contracts on EVM chains (Ethereum, Polygon, Arbitrum) or Solana. Includes comprehensive state management and upgrade path design.

Zero-downtime

Migration

100%

Logic Parity

Secure Wallet & Key Management

Replace insecure legacy key storage with MPC (Multi-Party Computation) wallets, embedded wallets (Privy, Dynamic), or seamless Web3Auth integration. Eliminates seed phrase risk while maintaining non-custodial user control.

SOC 2 Type II

Compliant

MPC/AA

Standards

Real-Time Indexing & Data Layer

Deploy custom subgraphs (The Graph) or event-driven indexers to replace centralized mobile backends. Provides fast, reliable access to on-chain data, transaction history, and user balances directly from the new frontend.

< 1 sec

Query Speed

Sub-second

Indexing Latency

Gas Optimization & Fee Abstraction

Implement gas sponsorship (ERC-2771), batched transactions, and fee abstraction via Paymasters (ERC-4337) to replicate or improve upon the frictionless UX of your legacy mobile app. Dramatically reduces user onboarding complexity.

90%+

Gas Cost Reduction

1-Click

User Onboarding

Protocol-Specific Integrations

Deep integration with DeFi primitives (Uniswap V3, Aave), NFT marketplaces (OpenSea, Blur), and identity protocols (ENS, Verifiable Credentials) to unlock new functionality and composability for your migrated dApp.

20+

Major Protocols

Testnet → Mainnet

Deployment Path

Post-Migration Monitoring & Analytics

Continuous performance, security, and user analytics via custom dashboards. Monitor smart contract events, wallet activity, and infrastructure health to ensure stability and inform product iterations after launch.

24/7

Alerting

E2E

Observability

process-walkthrough

CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3 experts to power your decentralized application.

We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on a foundation of security-first principles, utilizing battle-tested patterns from OpenZeppelin and rigorous internal audits to mitigate risks before deployment.

Deliver a fully audited, gas-optimized contract suite in as little as 2-4 weeks, accelerating your time-to-market.

Protocol Development: Custom logic for DeFi (DEX, lending/borrowing), NFTs (ERC-721A, ERC-1155), DAOs, and more.
Security & Audits: Multi-stage review process, including formal verification and integration with tools like Slither and MythX.
Full Lifecycle Support: From initial architecture and development through to mainnet deployment, upgrade management, and monitoring.

Technical Migration