How much does a crypto app cost?

$2,500 fixed, agreed before work starts, covering design, build, launch and 30 days of support. Node or RPC provider costs are yours directly and are usually modest at launch.

Do you write smart contracts?

No, and I would be suspicious of anyone offering to in a 30-day fixed-price sprint. Contract bugs are unfixable once deployed and drained. I build the product; audited contracts come from a specialist.

Which chains do you work with?

The EVM chains and their layer twos cover almost every request — Ethereum, Base, Arbitrum, Polygon and similar. Solana is possible; say so on the call so the stack is right from day one.

How do you handle onboarding for people new to crypto?

By hiding as much of the machinery as the product allows: explaining cost before commitment, handling network switching automatically, and never showing a raw hash where a sentence would do. That is most of the design work in web3.

What about failed transactions?

They are designed for explicitly — pending, replaced, reverted and rejected each get their own state and their own message. Most web3 apps leave the user staring at a spinner, which is why they feel broken.

You do, entirely. Source code and design files at handover, deployed to your own infrastructure.

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Design + build + deploy · kickoff in 24h · limited slots

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30 days · $2,500 · fixed

Ship It Live · web3 sprint

A web3 product normal people can use, live in 30 days.

Wallets, signing and gas explained in the interface instead of assumed. Most web3 products fail on usability, not on chain.

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Quick answer

A crypto or web3 app can be designed, built and live in 30 days for a fixed $2,500, covering wallet connection, on-chain reads, transaction flows with clear cost and confirmation, and a portfolio or activity dashboard. Writing and auditing new smart contracts is a separate, specialist engagement.

The plan

Day one to day 30, written down.

You get this schedule before you commit, not after. If a phase slips, that is mine to absorb — the price and the date were agreed before anything started.

Days 1–3

Scope and chain

Which chain, which contracts, and what the user is actually trying to do. Also what happens when a transaction fails, which is where the design work really is.

Days 4–12

Design

The transaction flow first, because irreversibility changes every rule about confirmation. Then the dashboard and onboarding for people who have never held a wallet.

Days 13–24

Build

Wallet integration, contract reads and writes, and the state machine around a pending transaction. Testnet throughout, with real signing tested early.

Days 25–28

Break it deliberately

Rejected signatures, wrong network, insufficient gas, dropped transactions, replaced nonces. Users will hit all of these, so they get designed rather than discovered.

Days 29–30

Launch

Mainnet, monitoring on, and a handover covering what to watch for in the first week.

What $2,500 gets you

Everything needed to launch — nothing padding the invoice.

Wallet connection across the common wallets, with a sane fallback

On-chain reads: balances, positions, history, rendered as plain language

Transaction flows that state the cost and the consequence before signing

Clear pending, confirmed and failed states — the ones most apps skip

A dashboard for holdings or activity that a non-expert can read

Network switching handled for the user rather than demanded of them

Responsive and fast, because most wallet traffic is mobile now

Source code, design files and 30 days of support at handover

Who books this

Built for

Web3 teams whose protocol works and whose front end scares people off

Founders building on existing contracts who need a real product around them

Projects whose users are currently interacting through a block explorer

The honest part

When 30 days is the wrong answer.

A fixed deadline only works when the scope genuinely fits inside it. These are the cases where I will tell you so rather than take the booking.

Writing new smart contracts, and certainly not auditing them. Contract security is a specialist discipline where mistakes are permanent and expensive — I build the product around audited contracts.

Custodial products holding user funds, which is a regulated activity before it is a technical one.

Launching a token. That is a legal and market-structure question, not a design sprint.

Questions

Before you book

The application layer, yes — wallet connection, reads, transaction flows, dashboard — on top of contracts that already exist and are audited. If the contracts still need writing, that is a separate engagement with a specialist and I will say so.

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