We architect and deploy custom smart contracts that form the secure backbone of your protocol. Our team specializes in Solidity 0.8+ and Rust, implementing battle-tested patterns from OpenZeppelin and Solmate to ensure robust security and gas efficiency from day one.
LABS
Services
Cross-Platform Mobile Web3 SDK Development
We build unified SDKs for React Native, Flutter, and native iOS/Android that abstract complex wallet connections, transaction signing, and multi-chain interactions, reducing mobile development time by 60%.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Full Lifecycle Development: From initial design and
Foundry/Hardhattesting to mainnet deployment and verification. - Security-First Approach: All code undergoes internal audits and formal verification; we prepare for third-party audits.
- Protocol-Specific Logic: Custom implementations for DeFi (AMMs, lending), NFTs (dynamic metadata, staking), and DAOs (governance, treasury).
- Integration Ready: Contracts are built with clear interfaces for seamless connection to your front-end and backend systems.
Deliver a secure, auditable, and scalable smart contract foundation in as little as 4-6 weeks, reducing your technical risk and accelerating time-to-market.
key-features-cards
ENGINEERED FOR PRODUCTION
Core SDK Capabilities We Deliver
Our Cross-Platform Mobile Web3 SDK provides a unified, battle-tested foundation. We deliver production-ready modules that accelerate your development timeline and ensure enterprise-grade security and performance.
01
Unified Wallet Integration
Single API for MetaMask, WalletConnect, Coinbase Wallet, and custom custodial solutions. Reduce integration time by 80% and provide a seamless user onboarding experience.
80%
Faster Integration
15+
Wallet Providers
02
Multi-Chain Transaction Engine
Build once, deploy everywhere. Our SDK abstracts EVM, Solana, and Cosmos complexities, enabling cross-chain interactions with a single function call and automatic fee estimation.
5+
Chain Families
< 100ms
Tx Simulation
03
Secure Key Management
SOC 2 compliant in-app wallet generation with biometrics, MPC, and hardware security module (HSM) support. Eliminate private key exposure and pass security audits on the first try.
SOC 2
Compliant
Zero
Key Exposure
04
Real-Time Blockchain Data
Subscribe to on-chain events, token balances, and NFT ownership with WebSocket connections. Our optimized indexers deliver sub-second latency without managing your own infrastructure.
< 1 sec
Event Latency
99.9%
Data Uptime
05
Gas Optimization Suite
Dynamic fee calculation, EIP-1559 support, and batch transaction bundling. Reduce user gas costs by an average of 40% and eliminate failed transactions due to pricing errors.
40%
Avg. Gas Savings
EIP-1559
Native Support
06
Modular & Extensible Architecture
Adopt a pay-as-you-grow model. Start with core wallet features and seamlessly add DeFi swaps, NFT minting, or staking modules without refactoring your codebase.
Plug-and-Play
Modules
Weeks
Saved on Refactoring
benefits
DELIVERABLES
Business Outcomes: Faster Time-to-Market & Reduced Risk
Our Cross-Platform Mobile Web3 SDK is engineered to deliver specific, measurable outcomes for your product team. We focus on accelerating development cycles while systematically eliminating the technical and security risks that delay launches.
01
Production-Ready SDK in 2 Weeks
Deploy a fully integrated, audited Web3 SDK for iOS and Android in under 14 days. We provide a complete starter kit with wallet connection, transaction signing, and token/NFT management APIs, eliminating months of foundational development.
< 14 days
To Production
100+
Pre-built APIs
02
Zero-Downtime Wallet Infrastructure
Guaranteed 99.9% uptime SLA for core wallet and RPC connectivity. Our multi-provider failover system and global CDN ensure your users' transactions are never blocked by infrastructure outages.
99.9%
Uptime SLA
< 100ms
Global Latency
04
Unified Codebase for iOS & Android
Write your core Web3 logic once in Kotlin Multiplatform or React Native. Our SDK eliminates platform-specific bugs and cuts mobile development time by 60% compared to maintaining two separate native codebases.
60%
Faster Development
1 Codebase
Dual Platform
05
Compliance-Ready Transaction Monitoring
Built-in tools for OFAC/Sanctions screening and risk scoring on every transaction. Automate regulatory compliance for your FinTech application without building complex monitoring systems from scratch.
Real-time
Screening
10+ Chains
Supported
06
Dedicated Technical Support & SLAs
Direct access to our engineering team with guaranteed response times for P1 incidents. We provide architecture reviews and upgrade paths, ensuring your integration remains stable and scalable.
< 15 min
P1 Response
24/7
Engineering Support
The Infrastructure Decision for Your Mobile App
Build vs. Buy: Custom SDK vs. Generic Alternatives
A detailed comparison of the time, cost, and risk involved in developing a custom mobile Web3 SDK in-house versus leveraging Chainscore's production-ready solution.
| Key Factor | Build In-House SDK | Generic SDK Provider | Chainscore Custom SDK |
|---|---|---|---|
Time to Production | 6-12 months | 2-4 weeks | 4-8 weeks |
Initial Development Cost | $200K - $500K+ | $0 - $50K (licensing) | $50K - $150K |
Native Chain Support | Custom (your choice) | Limited (EVM only) | Multi-chain (EVM, Solana, Cosmos) |
Security & Audit Burden | High (your responsibility) | Medium (shared risk) | Low (pre-audited, insured) |
Custom Wallet Integration | Full control | Limited (pre-built only) | Tailored to your UX |
Ongoing Maintenance & Updates | Your team, full-time | Vendor schedule, may lag | SLA-backed, proactive |
Performance Optimization | Your R&D | Generic, one-size-fits-all | Tuned for your use case |
Support & Escalation | Internal only | Community / Ticket-based | Dedicated Technical Account Manager |
Total Cost of Ownership (Year 1) | $300K - $700K+ | $75K - $200K | $80K - $180K |
Strategic Outcome | High risk, core distraction | Fast start, scaling limitations | Accelerated launch, scalable foundation |
how-we-deliver
PREDICTABLE DELIVERY
Our 4-Phase SDK Development Process
We deliver production-ready Web3 SDKs through a structured, transparent process that guarantees security, performance, and seamless integration. Each phase has clear deliverables and milestones.
01
Phase 1: Architecture & Specification
We define the SDK's technical architecture, select optimal protocols (e.g., WalletConnect v2, EIP-4337), and create a detailed spec document. This ensures alignment on scope, security model, and future scalability before a single line of code is written.
Deliverables: Technical Specification Document, Architecture Diagrams, Tech Stack Recommendation.
02
Phase 2: Core Development & Security
Our engineers build the SDK core with security-first principles, using battle-tested libraries like ethers.js/v6 and implementing comprehensive unit/integration tests. We focus on clean abstractions for wallet management, RPC calls, and transaction signing.
Deliverables: Core SDK Module, Unit Test Suite (>90% coverage), Internal Security Review.
03
Phase 3: Cross-Platform Integration
We adapt the core logic for React Native (iOS/Android) and web (React/Next.js), ensuring consistent API behavior and native performance. This phase includes implementing platform-specific optimizations and UI component libraries.
Deliverables: Platform-Specific SDK Packages, Demo Applications, Integration Guides.
04
Phase 4: Audit, Deployment & Support
The final SDK undergoes a formal security audit and comprehensive QA. We handle deployment to package managers (npm, CocoaPods) and provide 30 days of post-launch support to ensure smooth integration into your production environment.
Deliverables: Audit Report, Published SDK Packages, Deployment Documentation, Support Handover.
Structured Development Sprint
Typical 8-Week Development Timeline & Deliverables
A transparent breakdown of the phased delivery for your custom, production-ready Web3 SDK, from architecture to launch.
| Phase & Deliverables | Week 1-2 | Week 3-4 | Week 5-6 | Week 7-8 |
|---|---|---|---|---|
Architecture & Foundation | Technical spec, wallet architecture, chain selection | Core SDK module scaffolding | ||
Core Wallet & Auth | Key management & secure storage | Biometric & social login flows | Multi-chain wallet connection | |
Transaction & Smart Contract | Gas estimation & fee optimization | Contract interaction layer | Batch & sponsored transactions | |
UI/UX Components | Design system integration | Ready-to-use React Native/Flutter components | Custom component development | |
Testing & Security | Unit & integration test suite | Penetration testing & audit review | Performance & load testing | |
Deployment & Launch | Staging deployment & QA | Production launch & documentation | ||
Ongoing Support | Post-launch monitoring (1 month) |
Cross-Platform Mobile Web3 SDK
Frequently Asked Questions for Technical Leaders
Technical questions from CTOs and lead developers evaluating our mobile SDK for iOS, Android, and React Native.
For a standard integration with wallet connectivity, token transfers, and NFT display, we deliver a production-ready implementation in 2-3 weeks. Complex integrations, such as custom DeFi interactions or multi-chain bridging, typically take 4-6 weeks. We provide a detailed project plan with weekly sprints from day one.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall