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$
USD
I will develop a secure multi chain crypto wallet app
Blockchain and AI Software Developer
Top-rated Web3 & Fintech R&D Hub delivering enterprise-grade infrastructure and production-ready White Label solutions.
We build neo-banking platforms, RWA tokenization systems, stablecoin and payme...
Vetted by Fiverr Pro
Mykhailo was selected by the Fiverr Pro team for their expertise.
Vetted for
Blockchain Development & Solutions
About this Gig
Vetted Pro
I am Mykhailo, founder of Cowchain, a blockchain studio with 60+ engineers. I build secure multi-chain crypto wallets for mobile, web and browser extensions.
WHAT YOU GET
Non-custodial wallet development for iOS, Android, web and browser extensions
Multi-chain support for Ethereum, L2s, BNB Chain, Solana, Bitcoin and TON
Built-in swaps, staking and fiat on-ramp integrations
MPC or seedless key management
Seed phrase and private key security
Biometric authentication and encrypted local storage
Push notifications and transaction history
WalletConnect and dApp integrations
Testing, source code, store publishing and audit preparation
WHY COWCHAIN
120+ delivered Web3 products
Security-first wallet architecture
Experience with production wallet applications
Transparent milestones and weekly demos
One point of contact
Post-launch support included
PROCESS
- Send your wallet concept and required features
- Receive a concrete plan, timeline and fixed quote within 24 hours
- Approve the architecture and security model
- Follow development through weekly demos
- Receive tested source code, deployment and publishing support
Message me before ordering so I can review your wallet requirements and recommend
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
Other Blockchain Development & Solutions Services I Offer
FAQ
Who owns the source code and intellectual property?
You receive full ownership of the source code and intellectual property after final delivery. All mobile apps, extensions, backend services and documentation are transferred to you.
Do you build custodial and non-custodial wallets?
Yes. I can build custodial, non-custodial and MPC-based wallets. For most Web3 products, I recommend a non-custodial or MPC architecture.
Which blockchain networks do you support?
I support Ethereum, Arbitrum, Base, BNB Chain, Solana, Bitcoin, TON and other networks based on the project requirements.
Can you add swaps, staking and fiat on-ramp?
Yes. I can integrate token swaps, staking, WalletConnect, fiat on-ramp providers, transaction history, notifications and other wallet features.
How do we start the project?
Send your wallet concept, target platforms, required chains and features. I will provide a concrete architecture plan, timeline and fixed quote within 24 hours.
