Beltsys Labs
Beltsys Labs
Home - dApp Development

Decentralized Application Development

Services

Custom decentralized applications

We design and develop high-performance dApps on major blockchain networks. From smart contracts to user interface, we build complete and scalable decentralized solutions.

01

Web3 Frontend

Modern, responsive interfaces with native wallet connections (MetaMask, WalletConnect, Coinbase Wallet). Seamless user experience that hides blockchain complexity from end users.

React Next.js Wagmi RainbowKit Tailwind
02

Custom Smart Contracts

On-chain business logic with audited smart contracts. Battle-tested security patterns, gas optimization and multi-network EVM compatibility.

Solidity Hardhat OpenZeppelin Foundry
03

Multichain Integration

Simultaneous deployment on Ethereum, Polygon, BNB Chain, Arbitrum, Base and Optimism. Network abstraction so users operate without worrying about the underlying chain.

Ethereum Polygon Arbitrum Base BNB
04

Decentralized Storage

Integration with IPFS, Arweave and Filecoin for permanent, censorship-resistant storage of data, metadata and multimedia content.

IPFS Arweave Filecoin Pinata
05

Indexing and Subgraphs

Subgraph implementation with The Graph for efficient on-chain data queries. Optimized APIs that allow your dApp to read the blockchain in real time.

The Graph Subgraph GraphQL Alchemy
06

Testing and Auditing

Unit, integration and stress testing on testnets before launch. Smart contract security auditing and known vulnerability review.

Foundry Hardhat Slither Testnet

200+

dApps deployed

15+

Blockchain networks

800+

Smart Contracts on mainnet

0

Hacks in our contracts

Frequently asked questions about dApp development

We answer the most common questions about our decentralized application development services.

A dApp (decentralized application) is an application whose business logic runs on smart contracts on a blockchain, rather than on centralized servers. This ensures transparency, immutability and censorship resistance. The frontend can be a conventional web or mobile app that interacts with the blockchain through wallets.

In a traditional app, data and logic live on servers controlled by a company. In a dApp, critical logic runs on public, verifiable smart contracts. This eliminates intermediaries, enables true digital asset ownership and makes system rules transparent and immutable.

We develop dApps for multiple use cases: DeFi platforms (DEX, lending, staking), NFT marketplaces, DAOs with on-chain governance, decentralized identity systems, asset tokenization platforms, blockchain games and token management tools.

It depends on complexity. A simple dApp with one smart contract and basic frontend can be ready in 4-6 weeks. More complex projects like DeFi protocols or marketplaces with multiple features require 8-16 weeks. We offer free consulting to evaluate your project.

Yes. If your dApp is on an EVM-compatible network, we can migrate it to another network with minimal changes. We also develop multichain dApps from the start, allowing them to operate simultaneously on multiple networks like Ethereum, Polygon and Arbitrum.

We apply multiple security layers: static and dynamic smart contract auditing, use of audited libraries like OpenZeppelin, thorough testnet testing, analysis with tools like Slither and MythX, and peer code review. The frontend is also protected against phishing attacks and transaction manipulation.

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