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Crypto & Web3 Platforms

Crypto & Web3 Platform Development

Crypto and Web3 products look like normal apps until money and keys are involved. Then security, custody, transaction handling and regulation dominate every decision. This solution covers wallets, exchange-style platforms, token systems and decentralised applications, built with those realities up front.

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Blockchain and Web3 development is a service Alive Inc. offers, and it has published a candid look at the custody problem that catches teams building a crypto exchange app. That article reflects how this solution starts: with the hard parts, not the interface.
The business problem

What This Solution Is Built to Solve

Custody is the hard part

Who holds the keys and the funds decides the risk, the licensing and the architecture of the whole product.

Security is existential

A single flaw in a contract or wallet flow can mean irreversible loss.

Blockchains are slow and unforgiving

Transactions are asynchronous, can fail or be delayed, and cannot simply be undone.

Regulation varies by country

Requirements for exchanges, tokens and wallets differ widely and change quickly.

Usability for non-experts

Seed phrases, gas fees and network choices confuse ordinary users.

Blockchain is not always the answer

Some problems are better solved with a normal database, and it is worth saying so early.

Solution structure

How the Solution Is Put Together

Wallet layer

Non-custodial or custodial wallet flows, signing and balance display, depending on the model.

Smart contracts

On-chain logic for tokens, staking, NFTs or business rules, written and reviewed carefully.

Back end & node access

Services that read the chain, track transactions and keep an off-chain record.

Exchange / trading engine

Order handling, matching and settlement, where an exchange model is in scope.

Security controls

Key management, access control, monitoring and review processes.

Web & mobile interface

Interfaces that make chain interactions understandable to users.

Features

Key Capabilities You Can Expect

Token systems

Fungible or non-fungible tokens with defined rules and lifecycle.

Multi-chain support

Support for chosen networks according to your use case.

Contract review

Structured review and testing of smart contracts before deployment.

Transaction tracking

Clear status for pending, confirmed and failed transactions.

Account security

Authentication, withdrawal controls and alerts.

Dashboards

Balances, activity and platform metrics.

Implementation

How We Would Deliver It

1

Test whether blockchain is needed

We check the use case honestly before committing to a chain-based architecture.

2

Decide custody and compliance model

Custodial or not, and the regulatory context of your target markets, are settled before design.

3

Design architecture and contracts

Networks, contract structure and back-end services are designed together.

4

Build and test extensively

Contracts and flows are tested on test networks with attention to failure cases.

5

Independent review

Where the risk warrants it, an external security review is recommended before launch.

6

Staged launch and monitoring

Limited rollout with monitoring, then expansion.

Technology

Technologies Typically Used

The final stack is chosen around your requirements, integrations and team.

SolidityEthereum & EVM chainsWeb3.js / ethers.jsNode.jsReactFlutterPostgreSQL / MySQLREST APIs
FAQ

Frequently Asked Questions

Not always. If you do not need decentralisation, public verifiability or tokens, a conventional system may be simpler and cheaper. We will say so during discovery.

It is the question of who controls users' keys and funds. It shapes security, legal obligations and architecture, and it is often underestimated.

Yes. Contract development is part of our blockchain services, with testing and a recommendation for independent audits on higher-risk projects.

No. Regulation depends on your jurisdiction and business model, so we recommend taking specialist legal advice alongside development.

EVM-compatible chains are common. The right network depends on your use case, cost and audience.

It is possible, but it is among the most demanding builds because of custody, security and regulation. Our article on the custody problem explains why.
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Related Services, Industries and Solutions

Services

Blockchain & Web3 DevelopmentMobile App DevelopmentWebsite Security & Maintenance

Industries

Finance & FinTechMedia & Entertainment

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Related reading

The custody problem nobody mentions before you build a crypto exchange app

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