Blockchain Development Company
Trading Platform, Wallet, Token & Smart Contract Software for Businesses
We build the software behind digital asset products: FIU-IND compliance-ready trading platforms, custodial and self-custody wallet apps, tokens on Ethereum, BNB Chain and Solana, audited smart contracts, and full Web3 applications.Fixed price, fixed timeline, and every line of source code is yours.
Trusted by Startups, Fintechs & Enterprises
Fixed Price Development
On Time Delivery
NDA & Data Security
Post Launch Support
What We Build
Blockchain Software We Build for Businesses
Every product below is built for a company that will operate it, not for us. We hand over the code, the infrastructure setup and the documentation, and your team owns it outright.
Trading Platform Development
FIU-IND compliance-ready centralised, peer-to-peer and white label trading software. 15+ platforms delivered and live on Google Play and the App Store.
See detailsWallet App Development
iOS, Android and browser wallet apps with multi-chain support, MPC or multi-sig key management, and KYC onboarding.
See detailsToken Development
ERC-20, BEP-20, SPL and TRC-20 tokens with custom supply, vesting, governance and access control logic.
See detailsSmart Contract Development
Solidity, Rust and Move contracts written, tested and audited before deployment.
See detailsdApp & Web3 Development
Decentralised applications, marketplaces, tokenisation platforms and Web3 integrations for existing products.
See detailsBlockchain Consulting
Architecture, chain selection, tokenomics review and regulatory mapping before you commit to a build.
See detailsTrading Platform Development
Trading platform software is the most demanding thing we build: a matching engine that cannot miss an order, a ledger that cannot be wrong, and a compliance layer that a regulator will inspect. We build centralised, peer-to-peer and white label platforms for licensed operators and for companies preparing to become one.
Our platforms are built to the FIU-IND registration standard for India, with the KYC, AML, transaction monitoring and reporting a registered operator needs, and the same architecture maps to VARA, MiCA and MAS requirements for other markets.
What we build
- Centralised platforms with order book, matching engine and internal ledger
- Peer-to-peer platforms with escrow, dispute handling and reputation
- White label platforms on a proven base, customised to your brand and market
- Admin consoles for users, fees, markets, KYC review and reporting
- Institutional features: sub-accounts, API keys, withdrawal whitelists, cold storage workflows
Platform build sheet
What you receive at handover
- FIU-IND compliance-ready architecture
- KYC and AML onboarding
- Transaction monitoring and travel rule hooks
- Audit logs and regulator reporting exports
- Two-factor auth, device binding, withdrawal delays
- Proof of reserves tooling
Wallet App Development
A wallet app is where your users hold and move digital assets, so it is the product they judge you on. We build wallet apps for businesses that will operate them under their own brand and their own compliance rules, with key management, onboarding and monitoring designed for a regulated environment.
What we build
- Custodial wallet apps with HSM or MPC key control
- Self-custody wallet apps with seed backup and recovery
- Multi-chain wallets across EVM chains, Solana, Bitcoin and Tron
- Wallet features inside an existing fintech or super app
- Enterprise treasury wallets with multi-sig approvals
Wallet build sheet
What you receive at handover
- Send, receive and balances across chains
- Token and NFT support, address book, QR flows
- Biometric and PIN security, push alerts
- Admin dashboard for support, limits and monitoring
- KYC and AML integration with your chosen provider
Token Development Services
A token is a contract, and the contract decides everything: supply, who can mint, how transfers are restricted, how vesting unlocks. We write that contract from a specification you sign off, test it against edge cases, and deploy it to mainnet with verified source.
What we build
- Utility tokens for platforms and apps
- Governance tokens with on-chain voting
- Reward and loyalty tokens for consumer apps
- Asset-backed and security tokens with transfer restrictions
- Stablecoin-style tokens with mint and burn controls
- Wrapped and bridged tokens for multi-chain products
Token build sheet
What you receive at handover
- Contract source with full test suite
- Testnet and mainnet deployment
- Verified contract on the block explorer
- Pause, mint, burn and role controls as specified
- Documentation and handover session
Smart Contract Development & Audit
A smart contract cannot be patched after it goes live, so we treat every contract like a financial system: written to a signed specification, covered by tests, reviewed line by line, and audited before deployment.
What we build
- Token and vesting contracts
- Escrow and payment contracts
- Marketplace and auction contracts
- Multi-sig and treasury contracts
- Tokenisation contracts for real-world assets
- Upgradeable contracts using proxy patterns where needed
Contract build sheet
What you receive at handover
- Static analysis with Slither and Mythril
- Manual line-by-line review by two engineers
- Test coverage report
- Written findings with severity ratings and fix verification
- Optional independent third-party audit
dApp & Web3 Development
Beyond tokens and wallets, we build the applications that use them: marketplaces, membership platforms, loyalty systems, asset tokenisation products and Web3 features inside existing apps.
What we build
- NFT and digital collectible marketplaces
- Real-world asset tokenisation platforms for property, invoices and commodities
- Web3 login and wallet connect for existing products
- Blockchain-backed loyalty and rewards programs
- Supply chain and record-keeping applications
- DAO tooling and governance portals
dApp build sheet
What you receive at handover
- React and Next.js front ends
- Node.js and Go services
- ethers.js, wagmi and web3.js integration
- IPFS and Arweave storage, The Graph indexing
- AWS or GCP infrastructure setup
Blockchain Consulting
Most failed blockchain projects fail before the first line of code: wrong chain, tokenomics that do not hold up, or a product that did not need a blockchain at all. A short consulting engagement settles those questions before you spend on a build.
What we build
- Whether blockchain is the right fit for the use case
- Chain selection based on cost, speed, ecosystem and regulation
- Tokenomics review for utility and sustainability
- Architecture and security design
- Regulatory mapping for your target markets
- Build vs white label decision, roadmap and estimate
Consulting scope
What you receive at handover
- One to two week engagement
- Written report
- Working session with your team
- Fixed fee, credited against the build if you proceed with us
Compliance and Security
Built for Regulated Markets
Digital asset products get inspected: by app stores, by banks, by regulators, by users. We build with that inspection in mind.
KYC and AML by design
Identity verification, sanctions screening and transaction monitoring are part of the architecture, not a plug-in added later. We integrate with the provider you choose.
FIU-IND and global regulatory mapping
Our trading platforms are built to the FIU-IND registration standard for India. We know what VARA, MiCA, MAS and FinCEN expect as well, and we design the data model, reporting and controls to match your target markets.
Security process
Threat modelling at design stage. Encrypted key storage using HSM or MPC. Penetration testing before launch. Contract audits before deployment. Incident runbooks handed over with the code.
Data protection
GDPR and DPDP-compliant data handling. Role-based access. Audit logs for every privileged action. Hosting in the region your regulator requires.
Not sure which product you need?
Tell us the idea and the market. An engineer, not a salesperson, will scope it with you.
How We Work
From Specification to Mainnet in Six Steps
Discovery
We map your product, users, target markets and regulatory context, and agree the scope.
Specification
A written technical specification covering contracts, architecture, features and compliance. You sign it off before we build.
Design
User flows and screens for every role: end user, admin, compliance officer.
Build
Contracts and application code developed in parallel, with weekly demos and a shared test environment.
Test and Audit
Automated tests, manual QA, security review, and third-party audit where the product needs it.
Launch and Handover
Mainnet deployment, infrastructure, documentation, team training, and six months of technical support included.
Why Appinop
Why Companies Choose Appinop for Blockchain Development
Fixed price, fixed scope
You know the cost and timeline before we start. Changes are quoted, not absorbed into surprise invoices.
You own everything
Source code, contracts, infrastructure, documentation. No licence fees, no lock-in, no dependency on us to keep running.
Compliance is standard
KYC, AML, audit logs and reporting are in every build, because every serious client needs them.
Engineers, not resellers
Our own team in Jaipur writes the code. No outsourcing chain between you and the people building your product.
Six months of support
Bug fixes, monitoring and minor updates after launch, included in every package. Performance marketing available separately.
Track record
Since 2012, 350+ apps delivered including 15+ trading platforms live on Google Play and the App Store. Rated 4.9/5 on Clutch.
Recent Work
Built for Companies Like Yours
Client names withheld under NDA. Happy to walk you through the details on a call.
Multi-chain wallet for a Gulf fintech
A regulated payments company needed a custodial wallet inside its existing app. Delivered with MPC key management, KYC onboarding and an admin console in 12 weeks, and passed the regulator's technical review at first submission.
Peer-to-peer platform for a licensed operator
An operator holding a local licence needed a peer-to-peer platform with escrow and dispute handling. Delivered as a white label build in 8 weeks, then extended with a mobile app.
Asset tokenisation for a real estate group
Fractional ownership records on chain. We built the tokenisation contracts, owner portal and admin dashboard, with transfer restrictions enforced at the contract level.
FAQ
Questions Clients Ask Before They Start
The product type, the number of chains, the compliance requirements of your target market, and whether we build on a proven base or from scratch. Tokens are the smallest engagements and custom trading platforms the largest. Send us a short brief and you get a written scope with a fixed price within three working days.
Start Here
Tell Us What You Want to Build
Send a short description of the product, the markets you plan to operate in, and your timeline. You get a written scope and a fixed price within three working days, with no commitment.
- Reply within one working day
- NDA available on request
- Engineers on the first call, not sales