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Is there money safe from crisis and inflation? Some have found an answer in the cryptocurrency world. Cryptocurrencies like Bitcoin and Ether aren't under the control of states, banks and corporations. This makes assets in the blockchain ecosystem an alternative to traditional financial instruments for storing your money. And if we want to keep our savings for a long time, we need a reliable intermediary. With no banks on the crypto stage, people turn to other services like crypto wallets.
How to create a crypto wallet with functions that will attract people? In this article, you will learn how to create a cryptocurrency wallet application and how much it will cost to launch such a product.
In the last few years, we have witnessed a rapid growth of the cryptocurrency market. Total market capitalization reached $3.71 trillion in 2025, which surpassed the peak of $2.86 trillion in 2021. These numbers continue to surprise traders and investors today. The involvement of both companies and ordinary users in the cryptocurrency market increases, which means that more and more people in the world get access to crypto trading.
As a result, the demand for high-quality and reliably protected solutions for storing crypto assets rises. According to Grand View Research, the global crypto wallet market was valued at $15.5 billion in 2025 and is projected to reach $100.8 billion by 2033, growing at a 26.6% CAGR.
The crypto wallet is designed to solve current problems, such as unreliable token storage on exchanges, and complex transaction and conversion systems. In a high-quality wallet application, tokens can be transferred from one address to another or converted in just a few clicks. The internal security protocol takes care of the security of the funds, and seed phrases and strong passwords, which only the user has access to, create an additional layer of protection.
From a developer’s perspective, it’s profitable to make a cryptocurrency wallet application because they can earn money on commissions during transfers and conversions of currencies and advertising. That’s why the idea to create a cryptocurrency wallet today seems promising.
Before you pick features or a tech stack, decide what kind of wallet you’re building. The type determines who controls the private key, how funds are stored, and which security and compliance work you’ll take on. Two questions sort every wallet: who holds the keys, and whether the wallet is online or offline.
| Type | Key storage | Example | Pros | Cons |
| Custodial | Provider holds the private key | Coinbase, Binance wallets | Easy onboarding, account recovery | You trust a third party; regulatory liability |
| Non-custodial | User holds the private key on-device | MetaMask, Trust Wallet | Full user control, no middleman | Lose the seed phrase, lose the funds |
| Hot (software / mobile / web) | Keys online, encrypted on device or server | Exodus, Trust Wallet | Fast, convenient for daily use | Larger online attack surface |
| Cold (hardware / paper) | Keys offline, isolated from the internet | Ledger Nano, Trezor Model T | Strongest protection for long-term storage | Less convenient for frequent transactions |
In a custodial wallet, a provider — an exchange or a service — holds the private key on the user’s behalf. Users sign in with a login and password, and the provider can help recover access, which is convenient for beginners but means trusting a third party with the funds. In a non-custodial wallet, the private key is generated and stored on the user’s device, and only the user can move the assets. It puts the user fully in control, but losing the seed phrase means losing access for good. Most consumer products start custodial for speed and add non-custodial options as trust grows.
A hot wallet stays connected to the internet — software, mobile, and web wallets fall into this group. They’re fast and easy for everyday transactions, but the online connection widens the attack surface. A cold wallet keeps keys offline: hardware devices and paper wallets sign transactions in an isolated environment, which is far safer for long-term storage but less convenient for frequent use. Many users combine both — a hot wallet for daily spending, a cold wallet for savings.
Your choice shapes the whole project. A non-custodial, multi-chain wallet needs on-device key management, seed-phrase backup flows, and per-chain integrations; a custodial wallet needs server-side key storage plus AML/KYC and licensing. If you’re moving into web3 or DeFi, plan for wallet-to-dApp connectivity from the start — this is where DeFi wallet development and multi-chain wallet solutions add the most complexity and cost.
A crypto wallet’s core features are secure key management (public and private keys, plus seed-phrase backup), a readable wallet address for sending and receiving, support for several cryptocurrencies, in-app buy and sell, transaction signing, and push notifications. These are the same building blocks behind any digital wallet app development project — the difference with crypto is that the private key, not a bank, is the single source of truth.
What functions should a cryptocurrency wallet application have? As a rule, it's created to avoid problems that are associated with trading and storing funds on the crypto exchange or marketplace and to enhance wallet security. Based on this, the main requirements for the application are:
A unique access key. Every crypto wallet should provide its users with unique public and private keys. There should be an opportunity to add a personal password, two-factor authentication, or biometric authentication.
Session duration. Limiting the session duration is an effective security solution. This practice exists in banking applications. When some time passes without user activity, the application closes automatically. To resume the session, a user needs to re-enter the login password.
Several supported cryptocurrencies. There are single-currency crypto wallets, such as Bitcoin wallet or Ethereum wallet, but now their popularity isn't as high as that of multi-currency alternatives. It is often convenient for investors and traders to have a diversified portfolio of assets and store them in one place. The most efficient crypto wallets constantly add new tokens to their list due to the growing demand from the crypto community.
Buying and selling cryptocurrencies. The crypto wallet application should make it possible to buy and sell cryptocurrency assets, execute buy and sell orders, and organize trades between users.
Transaction options. You need to allow sending cryptocurrencies to other wallets using the wallet number that is a public key. The transfer of cryptocurrencies from one user to another is an integral part of every wallet app.
QR codes. QR codes simplify functions such as making a transaction, receiving a transfer of assets to your address, logging into the crypto wallet app, securely authorizing a user on the platform, or confirming any other actions.
Push notifications. Notifications may include one-time codes to confirm transactions, as well as information about successful crediting or debiting assets or an error. The push notification is important due to security concerns. If some assets have been debited from the account without the user’s consent, the notification will immediately inform the owner about it.
Constant updates of the conversion rate. Due to the high volatility of crypto assets, the exchange rate is constantly changing. Crypto wallets allow users to transfer money in different ways, for example, in Bitcoin or altcoins. Your application needs to synchronize with the blockchain network and show up-to-date information about conversion rates at the time of the transaction.
Сompatibility with iOS and Android. Launch the app simultaneously on the most popular operating systems: iOS and Android. You can achieve it with React Native that helps developers use one code base to develop two apps.
Besides the main mandatory functions, you can also stand out from the competition by adding the following features:
Commission calculation. Some crypto wallets have a field for calculating the commission, or they automatically show how much you need to pay depending on the transaction amount. This feature adds convenience to the user and makes the system more transparent.
Conversion of fiat into cryptocurrency. Not all crypto wallets allow you to convert US dollars or other fiat currencies into cryptocurrencies. However, such a feature can add popularity to your wallet and perfectly suit beginners in the world of crypto.
Payment gateways. A crypto payment gateway is a tool that allows users to pay with crypto for goods and services and merchants to accept crypto payments. Advanced crypto payment providers offer to automatically convert assets into fiat currencies.
Collaboration with cryptocurrency exchanges (DEXes). Many wallets need to be connected to the web version of a decentralized exchange or NFT marketplace to buy and sell assets on this website. A simplified or automatic connection to popular exchangers will be a great addition to your service.
Several accounts for cryptocurrencies. To diversify the portfolio, investors and traders buy and store several different cryptocurrencies at the same time. You can add the ability to create multiple accounts for different currencies in your crypto wallet application. So there will be a division between assets.
Staking. Many platforms, including Binance and Coinbase, have added the ability to stake cryptocurrencies using a cryptocurrency wallet. Storing cryptocurrencies to maintain network performance and receive rewards for this is a popular passive income among crypto enthusiasts.
Deciding which of these features to prioritize — and how to build them securely — is exactly where custom crypto wallet development pays off.
To develop a crypto wallet application, you'll need to choose either a desktop, a web, or a mobile app. Let’s explore some useful and advanced technologies that can be used for every type of app.
Electron.js for desktop apps. Electron.js allows developers to create native cross-platform desktop applications with JavaScript, HTML, and CSS. This open-source framework uses Chromium and Node.js. It makes it possible to build apps compatible with Mac, Windows, and Linux. Useful Electron JS features include automatic updates, crash reporting, debugging, and profiling.
React.js and Node.js for web apps. React.js and Node.js are open-source JavaScript libraries for web applications. React is a popular frontend library for creating interactive user interfaces. It offers regular updates and a convenient toolset. Node.js is a backend development environment that allows specialists to create scalable web applications with high performance, flexibility, and interoperability.
React Native for mobile apps. React Native is a framework used to create mobile applications for iOS and Android. It makes it possible to develop apps for the two platforms using a single code base. Powered by React.js, React Native allows developers to use a set of user interface components to quickly compile and launch mobile applications. It also offers an important live update function and a user-friendly wallet interface.
Most professionals agree that these technologies are the best choice for cryptocurrency wallet development. The Purrweb team is no exception, which is why we create desktop apps with Electron.js, web apps with React.js and Node.js, and use React Native when creating mobile applications. If you want to go deeper into the blockchain layer itself, our guide to blockchain app development covers node providers, smart contracts, and the on-chain side of blockchain development.
⭐Our experience
Our clients, Michael and Yao, asked us to create a crypto wallet.
The primary objective was to develop an MVP. This meant we had to prioritize essential features:
After diving into the backend we decided to use free API services, without developing backend, and saved clients’ money.
Our designers focused on a clean, modern user interface that makes complicated cryptocurrency operations easier. We used light colours: white, gray and blue, since they’re associated with purity and ease.
Let’s take a look at the crypto wallet app development stages.
This step will serve as a foundation for cryptocurrency wallet development. Without a project analysis, you may develop an app that will have no target audience. A thorough analysis will help you get a rough idea of the app as well as avoid unnecessary expenses.
In this step, you will:
Conduct competitor research. Look at your potential competitors and analyze their products. This can include reading reviews on app stores and downloading their crypto wallet apps.
Identify the target audience. View reports with statistics on crypto app users, including information about their location, age, and habits. This data will help you create user personas that will represent your ideal users.
Define the app’s features. Think about the features that your app will offer. For example, it can be a basic crypto wallet app that will allow users to store assets and make transactions. Or, it can also include crypto trading and exchange features.
Set timeframes and a budget. The information gathered about the details of the project will help you and your development team decide on the scope of the work. You'll then discuss the development costs and timeframes.
As a result of this step, you’ll get a clear understanding of your future crypto app and have a detailed development plan.
At this step, you'll be gathering references, thinking through the flow of the app, and visualizing it in the form of a UI/UX design. For a real example, see how we designed a crypto wallet for one of our clients.
During the design process, it’s important to put yourself in the users’ shoes and understand whether they will feel comfortable using your app. Your crypto wallet app needs to be user-friendly so that people new to cryptocurrency can pick it up instantly. Make sure that all the key features are easily accessible. A complicated design can ruin a positive impression, and users are unlikely to continue using your app.
By the end of this stage, you’ll have a user-friendly interface prototype that developers will implement into your crypto wallet app.
This is where the development begins.
To test the hypothesis and not invest too much money in development at the beginning, we recommend you develop an MVP with a basic set of features. If the application gets a good response from the target audience, you can develop it further and add new features.
During this stage, your development team will:
Select the technology stack. To decide on the tech stack and programming language, choose whether you want to develop a web or mobile application. If you want your application to be accessible to as many people as possible, consider developing it for multiple operating systems.
Integrate blockchain. It's an essential part of any crypto application. Depending on your needs, you can decide which blockchain to integrate into your app. There are more than 1,000 blockchains available today, with Bitcoin and Ethereum being among the most popular choices.
Implement security features. Any money-related application requires additional protection to prevent hackers from stealing users’ assets. Implement multi-factor authentication and advanced encryption capabilities. Familiarize yourself with important regulations such as AML, KYC, and CTF to increase security and reduce the chance of violating laws.
At the end of the development phase, you’ll have a fully functioning crypto wallet app that's almost ready for the release.
Testing will help you identify security vulnerabilities and bugs that went unnoticed during development.
The QA team performs different types of diagnostics. They perform edge cases, usability, performance, and security tests. The more types of testing they perform, the fewer bugs will make it to the release.
After making sure the crypto wallet app works properly and is secure enough, you can finally release it to the app stores.
After you release the crypto wallet app, it's important to continuously monitor users’ impressions of your app. The feedback will help you develop and improve the product. Positive feedback is great, but you also need to pay attention to the negative comments. Filter them out and only select constructive criticism.
As a result, you'll get a fully-usable application.
Of course, if you have the right skills, you can create a wallet yourself, but if not, it is easier and more reasonable to seek help from professionals. If you have a cool idea and need technical help, the Purrweb team is always ready to help you.
Like any other niche, crypto app development has its challenges. Knowing them beforehand will always be a good idea. Just to be ready, let’s go over the 3 biggest hurdles you might face.
The biggest challenge is to make the money transaction safe. To do this, a crypto wallet needs to have a blockchain integration. The chunks of transaction data encrypted with blockchain are impossible to be changed or deleted, so the user’s money can be safe.
Also, there’s an anonymity concern. To allow users to send money without exposing personal information, the app should have no backend. The data should be pulled through blockchain nodes via APIs. This will ensure anonymity.
Crypto apps have a lot of features, and it’s very easy for users to get lost and confused. The challenge for crypto services is to deliver everything with an attractive interface and a seamless user experience. This can help onboard newcomers and keep existing users engaged. A good UI/UX can also reduce errors like misclicks or sending money to the wrong address.
Cryptocurrencies are no longer in the gray zone, as more and more countries are establishing laws and protocols to govern crypto operations. For example, many countries require AML and KYC procedures to prevent money laundering and terrorist financing.
Note that every country has its own rules in terms of cryptocurrency. If you want to operate globally, you must comply with the regulations of each country where you do business.
In the EU, the Markets in Crypto-Assets (MiCA) regulation has been the current standard since December 2024, setting licensing rules for crypto-asset service providers. The burden depends on your model: a custodial wallet that holds user funds usually needs a license, while a non-custodial wallet faces lighter direct obligations but still must screen transactions against sanctions lists. An experienced wallet development company can map these rules to your custodial model before you write a line of code.
| Requirement | USA | EU | Asia (JP/SG) | Implementation tip |
| Know Your Customer (KYC) | Mandatory | Mandatory | Tiered | Use Onfido/SumSub |
| Anti-Money Laundering (AML) | FinCEN | AMLD5 | PSA Ccompliance | Chainalysis API |
| Tax reporting | Form 1099 | DAC7 | Local laws | Integrate CoinTracker |
| Data storage | CCPA | GDPR | PDPA | Encrypted servers |
You can overcome these challenges if you partner with an experienced software development company. They know the pitfalls behind wallet development and have the expertise to effectively navigate them. They maintain compliance and do the following:
The application development market offers many solutions in different price categories. Our company can share examples in ready-made crypto wallet applications, and if you want a faster path to market, a white label crypto wallet solution can cut months off the build.
The Purrweb company estimates the cost of the project from the first day of the customer’s request. We need to discuss all aspects of the work, app functions, preferred design, and personal wishes. If you are going to develop applications for a crypto wallet, you should familiarize yourself with the action plan. Based on the core features discussed above, our team estimates the pace and timing of crypto wallet development as follows:
| Stage | Estimation in hours | Estimation in weeks | Approximate costs |
| Project analysis | 0 | 0 | $0 |
| UI/UX design | 137 hours | 5 weeks | $6,840 |
| App development | 1050 hours | 12 weeks | $62,100 |
| QA (Quality Assurance) | 360 hours | in parallel with the development | $7,200 |
| Project management | during the whole project | during the whole project | $4,950 |
Overall, the cryptocurrency wallet development will cost you from $80,000 to $85,000 To get more information and an individual offer, please contact us.
Let’s look at popular crypto services. These apps and devices attracted millions of users around the world, and their features can serve as an example for creating your bitcoin wallet or multi-currency wallet.
| Wallet | Type | Supported chains | Standout feature |
| MetaMask | Non-custodial, hot | Ethereum, BNB Chain, Polygon, and other EVM networks | Deep dApp and DeFi connectivity; 200,000+ tokens |
| Exodus | Non-custodial, hot | Bitcoin, Ethereum, Litecoin, XRP, and more | Simple design, built-in exchange, Trezor-compatible |
| Trust Wallet | Non-custodial, hot | 100+ blockchains | Built-in Web3 browser, backed by Binance |
| Ledger Nano | Non-custodial, cold (hardware) | 5,500+ coins and tokens | Offline key storage, Ledger Live companion app |
| Trezor Model T | Non-custodial, cold (hardware) | Thousands of coins and tokens | Touchscreen, isolated offline transaction signing |
Here is how five of the most popular wallets compare, with a screen from each below.
MetaMask — a non-custodial hot wallet built on Ethereum, convenient for decentralized exchanges, smart contracts, and DeFi apps, with strong hardware-wallet compatibility. Available as a browser extension and a mobile app.
Exodus — a non-custodial desktop and mobile wallet with a clean design. It encrypts private keys on the device and works with the Trezor hardware wallet.
Trust Wallet — a hot mobile wallet by Binance with a built-in Web3 browser, supporting 100+ blockchains and 10M+ assets across iOS and Android.
Ledger Nano — a cold hardware wallet line (Nano X, Nano S, Nano S Plus) that stores keys offline and manages assets through the Ledger Live app. See the Ledger hardware wallets comparison for model differences.
Trezor Model T — a cold hardware wallet with a touchscreen that signs transactions offline in an isolated environment, compatible with Ethereum-based web and desktop wallets. Learn more at Trezor.
Now you know how to make a cryptocurrency wallet in several steps. We hope that our article was useful for you. If you want to build a cryptocurrency wallet, you can familiarize yourself with our cases of the development of such applications.
➡️ Leave a request, and our manager will contact you to discuss the project, the stage of its development, and the costs. We'll be happy to help your idea come true, and our experienced team more than 200 specialistsof guarantees to create convenient and high-quality applications.
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Building a crypto wallet app typically costs between $60,000 and $120,000 depending on platform scope, custodial model, and security requirements. A non-custodial mobile wallet with core send/receive functionality and seed-phrase management sits at the lower end (~$60,000-$80,000). Adding multi-chain support, in-app exchange, and hardware wallet integration pushes the budget toward $100,000-$120,000. Timeline ranges from 4 to 9 months for a production-ready release. Source: Purrweb internal project estimates (2024-2025 portfolio).
A minimum viable crypto wallet — covering wallet generation, key management, transaction sending/receiving, and balance display — takes roughly 4 to 6 months with a dedicated team of 4-6 engineers. Full-featured wallets with multi-chain support, KYC integration, and an in-app swap engine take 7 to 12 months. Discovery and architecture design alone typically consume 3 to 4 weeks before any code is written. Source: Purrweb project timeline data; Bitcoin Foundation development guide (April 2026).
A custodial wallet stores private keys on the service provider's servers, meaning users access funds through authentication rather than key ownership. A non-custodial wallet generates and stores keys locally on the user's device; the provider never holds them. For product teams, custodial wallets simplify account recovery and compliance integration but introduce regulatory liability and a high-value attack surface. Non-custodial wallets shift security responsibility to the user and require robust seed-phrase backup flows in the UI. Most fintech products start custodial for speed-to-market, then migrate to non-custodial or hybrid as user trust grows.
A production crypto wallet mobile app typically combines React Native or Flutter for the cross-platform UI layer, with Node.js or Go on the backend for transaction signing services and API orchestration. Core blockchain interaction uses provider libraries such as ethers.js (Ethereum/EVM), bitcoinjs-lib (Bitcoin), or Solana Web3.js. Key management relies on BIP-32/BIP-39 standards for HD wallet derivation. Secure enclaves (iOS Secure Enclave, Android StrongBox) handle private key storage at the hardware level.
Mandatory security controls for a production wallet include: (1) hardware-backed key storage using OS secure enclaves; (2) BIP-39 seed phrase generation with entropy from a CSPRNG, never from Math.random(); (3) encrypted local storage with AES-256; (4) certificate pinning on all API calls; (5) biometric or PIN authentication with lockout policies; (6) transaction signing performed offline or in an isolated process; (7) address allowlist and anomaly detection for high-value transfers. A third-party security audit before mainnet launch typically adds 4 to 8 weeks to the timeline.
Yes. React Native is a practical choice for crypto wallet development when teams want a single codebase for iOS and Android. The ecosystem includes mature libraries for BIP-32/BIP-39 key derivation, QR-code scanning, and biometric authentication. Performance-sensitive operations such as private key encryption and transaction signing should be offloaded to native modules written in Swift or Kotlin to avoid exposing sensitive logic in the JS bundle.
Compliance requirements depend on the wallet's custodial model and target markets. Custodial wallets that hold user funds typically qualify as Money Services Businesses (MSBs) in the US, requiring FinCEN registration and AML/KYC programs under the Bank Secrecy Act. In the EU, the Markets in Crypto-Assets (MiCA) regulation (fully in force from December 2024) imposes licensing requirements on crypto-asset service providers, including custodians. Non-custodial wallets face fewer direct obligations but must implement OFAC sanctions screening on transaction addresses.
Multi-chain support is typically implemented through a chain-abstraction layer that normalizes wallet derivation paths (BIP-44 coin-type per chain), RPC provider connections, and transaction construction into a unified interface. Each chain module wraps its native SDK behind a common Transaction and Balance API. WalletConnect 2.0 is the standard integration point for dApp connectivity across chains. Adding a new chain requires a new coin-type derivation path, a chain module, and updates to the address validation and fee estimation logic — typically 2 to 4 weeks of engineering work per chain.
Yes. You can build a crypto wallet yourself using open-source libraries (e.g. web3.js, ethers.js, BitcoinJS) and a blockchain node or provider, but a secure, production-grade non-custodial wallet with key management, multi-chain support, and compliance usually requires a dedicated development team.
Yes. An LLC can own a crypto wallet — typically a custodial or multi-signature non-custodial business wallet held in the company’s name. This is common for treasury management and requires clear internal key-custody policy and, in regulated jurisdictions, MiCA/AML compliance.
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