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Non-custodial · multi-chain · hardened

Crypto Wallet Development — Secure, Multi-Chain Wallets

Custom crypto wallets built security-first — non-custodial web and mobile wallets, multi-chain support, swaps and dApp connectivity, engineered by someone who's built the exchanges these wallets plug into.

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non-custodial · multi-chain · WalletConnect · biometrics · EVM + Solana

01 · Types

What kind of wallet do you need?

  • Non-custodial wallets

    Users hold their own keys; you never touch funds.

  • Custodial wallets

    You manage keys for users (with the compliance that implies).

  • Multi-chain wallets

    One wallet across Ethereum, EVM chains and Solana.

  • In-app / embedded wallets

    A wallet built into your existing app or platform.

02 · Features

Everything a modern wallet needs

  • Key management

    Secure generation, storage and recovery (seed phrase or MPC-style, as needed).

  • Multi-chain balances

    Tokens and NFTs across chains in one view.

  • Send / receive / swap

    Clean transaction flows and in-wallet swaps.

  • dApp connectivity

    WalletConnect and injected-provider support.

  • Biometrics & auth

    Face/Touch ID, PIN, and session protection.

  • Portfolio & history

    Balances, activity and token metadata.

03 · Security

A wallet is only as good as its security

A wallet holds the keys to real money — one weakness and users lose everything, publicly. We build wallets security-first: careful key handling, secure storage, protection against the common attack vectors (phishing surfaces, malicious dApp requests, insecure storage, weak recovery), and clear transaction confirmations so users know exactly what they're signing. We build the software to be safe; you keep control of custody decisions.

  • Key handling & storage
  • Clear signing prompts
  • Malicious dApp protection
  • Recovery path hardening

04 · Platforms

Web, mobile, and the chains that matter

We build wallet front-ends in React, Vue or Svelte for web, and mobile wallets for iOS and Android, backed by Laravel/PHP services where needed. Multi-chain across Ethereum, EVM chains (Polygon, BNB Chain, Arbitrum, Base) and Solana. This is part of our broader cryptocurrency development services — wallets that fit into a real product, not standalone toys.

  • React
  • Vue
  • Svelte
  • Laravel
  • iOS
  • Android
  • Ethereum
  • Polygon
  • BNB Chain
  • Arbitrum
  • Base
  • Solana

05 · Process

How crypto wallet development runs

  1. 01

    Scope & quote

    Wallet type, chains, features, platforms → fixed price.

  2. 02

    Architecture

    Key handling and security model decided up front.

  3. 03

    Build

    Front-end + integrations in short iterations.

  4. 04

    Security review

    Hardening and testing against known attack vectors.

  5. 05

    Launch

    Release to web/app stores, with support.

06 · Proof

Wallets that plug into real systems

Open source on GitHub →
Live

demo.vonos.xyz

Spot + P2P exchange

Integrated wallets · order book · trading engine

Vonos Exchange

A live spot + P2P exchange with integrated wallets, order book and trading engine. We build the wallets that plug into real trading systems, not demos.

View live demo

FAQ

Wallet development FAQs

It depends on the wallet — a focused non-custodial web wallet is far less than a multi-chain web-and-mobile wallet with swaps and dApp support. You'll get a fixed quote after a scoping call that maps features, chains and platforms.
In a non-custodial wallet the user holds their own private keys and controls their funds; in a custodial wallet you hold keys on their behalf — which is more convenient for users but brings custody and regulatory responsibilities you'd own. We'll help you choose and build either.
Yes — one wallet across Ethereum, EVM chains (Polygon, BNB Chain, Arbitrum, Base) and Solana, with tokens and NFTs in a single view.
Security-first architecture: careful key handling, secure storage, protection against phishing and malicious dApp requests, clear signing prompts, and testing against known attack vectors. For custodial builds we design the custody model with you.
Yes — web wallets in React, Vue or Svelte, and native/cross-platform mobile wallets for iOS and Android.

Next step

Building a crypto wallet?

Message me your requirements and I'll send back a plan, a security approach and a fixed quote.

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