We develop cryptocurrency wallets with well-designed and user-friendly interface for your needs and tasks: custodial and non-custodial, for web, desktop, and mobile platforms. Do you want an analogue of Trust Wallet, Bitcoin Wallet, or a wallet for your own cryptocurrency? We can do it all.
Offering a crypto wallet development solution, we listen and hear our customer, clearly fulfil the tasks set, and meet the deadlines. If you are interested in the cost of crypto wallet development, please send a request.
Fill out the feedback form or write to us on Telegram.
2. Tell us about the project
Briefly describe the idea, goals and objectives you want to solve.
3. Let's discuss the details
We'll schedule a call to discuss your project in more detail and see how we can help.
4. Signing the contract
If we are a good fit, we sign a contract and move on to the next step.
5. Discovery phase
At this stage, we collect requirements and create a set of design documentation describing the future product.
6. Delivery phase
We develop the product according to the agreed-upon specifications. The work process is typically divided into 3-4 stages, each with clear completion indicators.
Feedback from our clients
I recently worked with the Polygant team to develop a mobile wallet for our cryptocurrency and I am very pleased with the result. The team was extremely knowledgeable and efficient in their approach and they were able to deliver a high quality product in a very short time frame. The wallet is a huge hit with our users and we’ve received a lot of positive feedback about its functionality and ease of use. I highly recommend Polygant for any mobile wallet development.
Dan Noxville
Valt
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Table of Contents
About Cryptocurrency Wallet Development
In today’s rapidly expanding DeFi ecosystem, crypto wallets are more than just digital storage — they’re the gateway to the entire blockchain universe. Whether you’re trading tokens, minting NFTs, staking assets, or holding cryptocurrencies for the long term, having a reliable wallet is crucial for anyone interacting with Web3.
However, not all wallets meet the demands of modern users. Many standard solutions fall short on security, usability, and cross-chain compatibility. While they might suffice for casual users, serious businesses, fintech startups, and blockchain innovators require custom-built wallets designed for performance, scalability, and enterprise-level reliability.
This guide is designed for:
Tech founders planning to launch a crypto product
Fintech companies aiming to integrate digital assets
Startups exploring embedded DeFi and tokenized solutions
Blockchain developers seeking insights into wallet architecture
Crypto enthusiasts eager to understand how secure wallets operate
Our team has extensive experience helping startups and enterprises deliver secure, high-performance crypto wallets. We focus on combining fast transaction processing, intuitive interfaces, and ironclad security from the ground up.
By the end of this guide, you’ll have a comprehensive understanding of how crypto wallets function and how to build one tailored to your project’s needs.
Ready to unlock the full potential of crypto wallet development? Let’s dive in.
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What is a Cryptocurrency Wallet?
Many users mistakenly believe that cryptocurrencies are physically stored in their wallets. In reality, blockchain technology works differently: coins exist permanently on the blockchain after they are issued or mined. A crypto wallet does not hold the coins themselves—it acts as a secure tool for managing blockchain addresses and storing the corresponding public and private keys.
A crypto wallet is essentially a program or application that enables users to interact with the blockchain. It allows users to:
Check balances for one or multiple cryptocurrencies
View transaction history, including incoming and outgoing transfers
Send and receive transfers, which means assigning ownership of cryptocurrency to another user’s blockchain address
While it may feel like a transfer in a traditional sense, cryptocurrency isn’t physically moved—it is simply re-assigned on the blockchain from one address to another.
In essence, a crypto wallet is similar to a bank account, but it’s specifically designed for digital assets. It provides users with a clear overview of their holdings, including:
The total balance of coins
The sources of incoming funds
The destinations of outgoing transfers
For multi-currency wallets, additional features often include exchange rates, token swaps, and portfolio tracking, making it easier to manage several assets in one place.
Some advanced wallets also offer enhanced functionality such as integration with DeFi platforms, staking capabilities, NFT management, and cross-chain transactions. These features make crypto wallets not just a storage tool, but a central hub for managing digital assets securely and efficiently.
Ultimately, a well-designed crypto wallet provides transparency, control, and security, giving users the confidence to interact with the blockchain safely.
Types of Cryptocurrency Wallets
A crypto wallet in the form of a program, application, online service, or browser extension is considered a hot wallet because it has to be always connected to the internet. Hot wallets can be:
Custodial or non-custodial, depending on who holds keys and controls a cryptocurrency
Web, mobile, or desktop, depending on the platform.
A crypto wallet that doesn’t need internet connection is considered a cold wallet. It has a physical form and can be hardware or paper.
We at Polygant specialise in developing crypto wallets in the form of web and mobile apps, both custodial and non-custodial. Contact us on Telegram to discuss which type works better for you.
Custodial and Non-custodial Crypto Wallets
This is the most important difference everyone dealing with cryptocurrencies should be aware of.
As we know, all transactions in blockchain networks go between addresses that look like bizarre combinations of letters and numbers. For example, a wallet address on Ethereum may look like this: 0x763a8268712D3E015919d0097F93601B0fd4F102.
Since information about all transactions is stored in the blockchain, everyone can easily view transaction history or the balance of any address. Special services called blockchain explorers are used for that.
To send coins to someone from their address, a user needs to sign a transaction using a private key, otherwise the network will reject it. Here’s the private key to the address from the above example: 0x34229daaf8fdb3e9d3861f1af065e8a8fa7887d76e33af19e18de8e6c33cd13f.
Only someone who knows the private key can send coins from the address. And if two or more people know the key, it will be impossible to determine who performed the transaction. This is why it is critical that the private key is stored safely.
Custodial crypto wallet
This is a wallet managed by a third party, which also stores users’ private keys on its side. Many consider this wallet type insecure due to high vulnerability. But the third party can help recover access to cryptocurrencies if the user lost their password or seed phrase.
Depending on the companies that own crypto wallets, there are two types of custodial wallets:
Exchange-based. Such a multi-currency wallet is provided by crypto exchanges that generate public addresses and store private keys of their users.
Proprietary. Such a single wallet is created by private developers that store users’ keys and all the data on their own servers.
Non-custodial crypto wallet
This is a wallet that allows a user to store private keys on their device without disclosing them to any third party. This wallet type is way more reliable in terms of security. But in this case, the user is personally responsible for storing crypto keys and seed phrases. If they lose them, their cryptocurrency will be gone for good.
Crypto Wallets for Different Platforms
Now let’s look at three types of crypto wallets that have more obvious differences: web, mobile, and desktop. Each of them has its strengths, weaknesses, and risks. In the finance technology world, the more secure the solution, the more complex and restricted it is. So choose one that balances these factors and corresponds to your goals.
Web wallets
They are popular for the same reason as any web app or SaaS solution. Here are the advantages of web wallets:
Easy to use
Accessible on any device
Device specs don’t matter.
Downsides: they may be less functional or less secure than other types.
If you are going to develop a web crypto wallet, don’t forget to enrich it with key features and enhance security. Otherwise the users will leave you for other crypto wallets, no matter how hard you try to retain them.
Mobile wallets
These have become the most popular amongst blockchain wallet users worldwide. Here are the advantages of mobile wallets:
Easy to use
Portable
Paper wallet import
Compatible with smartphone hardware (camera, Bluetooth, NFC).
Downsides: they may be laggy on low-cost smartphones. Malware may be distributed under the guise of a popular wallet.
If you are going to develop a mobile crypto wallet, don’t forget to optimize it and add it to all app stores from your official account. Also mention on your website, forum threads, and social media, where people can download your wallet. This way you will prevent them from getting to fraudulent websites with malicious clones of your app.
Desktop wallets
These are the most feature-rich. Just like mobile wallets, these crypto wallet apps store private keys on the user’s device (on a PC in this case). They don’t need a constant internet connection, and this is what makes them better than online wallets. Here are the advantages of desktop wallets:
Broad functionality
High security
Better reliability compared to other wallet types
Focus on tech-savvy users.
Some may find the last point disadvantageous. While digital currencies have already emerged from a narrow circle of enthusiasts and have reached the general public, an application designed for experienced blockchain wallet users may frighten newcomers away.
If you are planning to develop a desktop wallet, try to make its interface friendlier. And don’t forget to compose a helpful manual.
Hardware and Paper Crypto Wallets
A hardware wallet is a physical device that stores addresses and private keys in an encrypted form. It looks like USB flash drives or MP3 players and plugs into a PC. Most have a small display that shows the current balance, address, and key. These are all functions hardware wallets have, just because they aren’t connected to the internet. Combined with encryption, this feature makes them very secure.
A paper wallet is a sheet of paper with the printed address and private key that are often duplicated in the form of QR codes. At first they were created on generator websites, then this function appeared in desktop applications. The latter also generate public and private keys and allow printing them with QR codes.
Hardware wallets and paper wallets work better for those holding larger amounts of cryptocurrencies but rarely using them. Amongst them are long-term investors, large-scale miners, and crypto companies storing their or users’ reserves in cold wallets.
Important Functions of Crypto Wallets
Both mobile and web wallets, as well as custodial and non-custodial ones, offer the following functions:
Showing current balance and transaction history
Sending cryptocurrency from one address to another
Specifying transaction fees.
On top of that, there are three useful functions that should be implemented during the wallet development process.
User authentication
Most countries have recognized cryptocurrencies as digital assets. This is why both a cryptocurrency and related personal data should be protected and stored in a safe place. Your development company must ensure high security both for the cryptocurrencies and data of users.
To prevent fraudsters from getting access to your users’ accounts, keep all user data encrypted. Also provide an option to enable two-factor or multi-factor authentication and strengthen account access recovery.
QR code scanner
QR codes give your crypto wallet a range of advantages and growth potential. They allow cryptocurrency to be sent in a contactless way, thereby surpassing the capabilities of plastic bank cards. QR code may also come in handy for crypto payments and P2P transactions.
Transaction notifications
Any finance application has such a function as transaction notifications. Your crypto wallet should also be able to notify users. Push notifications are a means of validation and security. Crypto trading platforms with exchange-based wallets use them to notify users of cryptocurrency withdrawal requests.
Why do You Need a Crypto Wallet?
As the world of digital assets continues to expand, a crypto wallet has become more than just a convenience — it’s a necessity. Whether you’re actively trading, collecting NFTs, exploring DeFi opportunities, or simply engaging with the Web3 ecosystem, your wallet functions as your personal vault, digital identity, and gateway to decentralized finance.
True Ownership and Enhanced Security
The fundamental value of a crypto wallet lies in control. When your funds are held on an exchange or managed by a custodial service, someone else holds your private keys — and ultimately, your assets. Non-custodial wallets put ownership firmly in your hands. You authorize every transaction yourself, ensuring that your crypto is protected against unauthorized access. In the world of blockchain, self-custody is the first step toward genuine security.
Direct Access to DeFi, dApps, and NFTs
Crypto wallets are not just storage tools; they provide seamless access to the broader decentralized ecosystem. With a wallet, users can trade tokens on decentralized exchanges, participate in liquidity pools, stake assets to earn yield, and engage with a wide array of dApps — from decentralized games to social platforms and DAOs.
NFT enthusiasts can mint, buy, and manage digital collectibles while proving ownership without relying on centralized platforms. Every transaction, from swapping tokens to interacting with smart contracts, flows directly through your wallet, making it the central hub of your Web3 activities.
Freedom from Traditional Financial Restrictions
Conventional financial systems often come with limitations — restricted banking hours, geographic restrictions, and approval bottlenecks. Crypto wallets eliminate these barriers. You can send and receive funds worldwide at any time, interact with decentralized applications without permission, and retain full control over your assets without risk of freezing or restrictions. In short: your wallet gives you financial freedom like never before.
The Rise of Self-Custody
In response to high-profile exchange hacks and custodial failures, more users are taking control of their own digital assets. This shift toward self-custody reflects a broader cultural trend in the crypto space: prioritizing security, transparency, and independence. Adopting a wallet isn’t just a precaution — it’s a forward-looking move that aligns with the decentralized vision of blockchain technology.
A Gateway to Crypto Payments
Modern crypto wallets aren’t only about holding assets — they are also the backbone of innovative payment solutions. Businesses entering the Web3 space can leverage wallet infrastructure to enable crypto payments for retail, subscriptions, in-app transfers, and more. Well-designed wallets ensure these payments are secure, scalable, and user-friendly, making them a critical component of any digital finance strategy.
Which Crypto Wallet App to Order
There’s one rule in the crypto industry: everyone is personally responsible for their coins. This is what differs digital currency from fiat money that you can deposit to a bank account and rest assured it won’t go anywhere.
Purchasing a ready-made solution, such as a white label wallet, you will have to balance security and user-friendliness. The better the one parameter, the worse the other, and vice versa. Therefore, if you are going to store large amounts, consider ordering a cryptocurrency wallet app that will match your goals and needs.
Your proprietary crypto wallet app will open unlimited opportunities for users. Our cryptocurrency wallet development company can implement both the primary functions and advanced ones, namely:
Multicurrency support
Buying and selling crypto using fiat currencies
Connecting a merchant to accept payments.
Our crypto wallet development process always include the following:
Writing terms of reference — 18+ hours.
Business and technical analysis — 20+ hours.
UI and UX design — 30+ hours.
Back-end development — 50+ hours.
Front-end development — 40+ hours.
Testing — 20+ hours.
How Much it Costs to Develop a Crypto Wallet
The cost of cryptocurrency wallet development services depends on the type you need (custodial or non-custodial), as well as on the platform for which you need to create a cryptocurrency wallet. Of course, it also depends on the expected set of functions and the technology stack used.
Custodial wallet development
Web app
Starts at 20,000 USDT
Mobile wallet
Starts at 30,000 USDT
Non-custodial wallet development
Web app
Starts at 25,000 USDT
Mobile wallet
Starts at 35,000 USDT
Polygant is ready to develop a crypto wallet offering any functions that you and your future users may need. Send us a request to find out how much the wallet app development will cost in your case.
A cryptocurrency wallet is a program or application that allows you to interact with the blockchain: check balances of various currencies, view transaction history, and send and receive transfers.
What types of crypto wallets are there?
They come in the following types: custodial and non-custodial; web, mobile and desktop.
How much does it cost to develop a crypto wallet?
The cost of development depends on the desired type—custodial or non-custodial—as well as the platform for which the cryptocurrency wallet is being created. The cost also depends heavily on the wallet's feature set.
Can you develop crypto wallet for me?
Polygant is ready to create a cryptocurrency wallet with any features you need and that will be useful to future users.