The main types of crypto wallets are hardware wallets, which keep keys on an offline device; software wallets, which run as mobile apps, desktop programs or browser extensions; custodial exchange accounts, where a company holds the keys; smart-contract and multi-signature wallets; and paper wallets, now rarely used. They differ in who holds the keys and how exposed they are.
What are the main types of crypto wallets?
Every wallet stores private keys rather than coins (see what a crypto wallet is for the basics). The table compares the common types on custody, connectivity, cost and risk.
| Type | Who holds keys | Online? | Cost | Best for | Main risks |
|---|---|---|---|---|---|
| Hardware wallet | You | No (signs offline, connects only to send) | One-off device purchase | Long-term holdings | Lost backup, tampered device, approving a malicious transaction |
| Mobile app wallet | You | Yes | Free to install | Small balances, payments on the go | Phone malware, theft, phishing |
| Browser-extension wallet | You | Yes | Free to install | Using decentralized apps | Phishing sites and malicious approvals |
| Desktop wallet | You | Yes | Free to install | Advanced users, often Bitcoin-focused | Computer malware |
| Exchange or custodial account | The provider | Provider decides (usually a mix) | Usually free; trading and withdrawal fees | Beginners and active traders | Provider failure, hacks, account freezes |
| Smart-contract or multi-signature wallet | Several key holders | Depends on each signer’s setup | Network fees to deploy and use | Shared control: teams, funds, families | Lost signers, contract bugs, complexity |
| Paper wallet | You | No | Free | Rarely recommended now | Fire, water, printers, unsafe sweeping |
What is a hardware wallet?
A hardware wallet is a small dedicated device, such as a Ledger, Trezor or Coldcard, that generates and stores keys inside the device and signs transactions there. Your computer or phone only passes the unsigned transaction in and the signed one out, so malware on that computer cannot read the key. The device screen shows the real destination and amount, which you confirm with a button. Buy hardware wallets directly from the manufacturer, because devices from third-party sellers can be tampered with. Our hot wallet vs cold wallet comparison covers when the cost is worth it.
How do mobile, desktop and browser wallets differ?
- Mobile apps such as Trust Wallet keep keys on your phone and are handy for payments and QR codes. Protect the phone with a strong passcode and keep it updated.
- Browser extensions such as MetaMask, Rabby and Phantom connect directly to decentralized apps. That convenience also makes them the main target of fake sites and malicious approval requests.
- Desktop wallets such as Electrum and Sparrow, both Bitcoin-focused, offer advanced controls and can pair with hardware wallets.
All three are hot wallets: the keys live on an internet-connected device. They are usually free, but you still pay network fees, and some add a charge for built-in swaps.
How do custodial and exchange wallets work?
When you buy crypto on an exchange and leave it there, the exchange holds the keys and records your balance in its own database. You log in with a password and 2FA, and support can restore access if you lose them. The trade-off is counterparty risk: if the provider is hacked, freezes withdrawals or goes bankrupt, your crypto can be lost or locked. The SEC suggests asking any custodian how it is regulated, whether it has insurance, how and where it stores assets, and whether it lends or reuses client assets.
What are smart-contract and multi-signature wallets?
A smart-contract wallet is an account controlled by code on the blockchain rather than by a single key. The best-known example is Safe (formerly Gnosis Safe), a multi-signature account used on Ethereum and other EVM networks: it lists a set of owner keys and a threshold, such as two of three, that must sign before funds move. Smart-contract wallets can also add spending limits and recovery options. Read how multi-signature wallets work for setup patterns.
Some custodians use multi-party computation (MPC) instead, splitting one key into shares held by different parties so the full key is never assembled in one place.
Are paper wallets still used?
A paper wallet is a printed private key and address. It was popular before hardware wallets, but it is easy to damage or lose, risky to print on a shared or networked printer, and awkward to spend from safely. Today, writing a seed phrase on paper or metal as a backup for a hardware wallet does the same job better. To compare specific products, use our guide to choosing a crypto wallet.
Which type does Wealtii use? Wealtii is a custodial service: investors do not hold keys to fund assets. Those assets are held 1:1 in a Gnosis Safe multi-signature vault on BNB Smart Chain that requires all three of its three signatures to move funds, and the vault's address and balances are public; see the Transparency page. Custody by a provider still carries provider risk, and Wealtii is not regulated.
Frequently Asked Questions
Which type of crypto wallet is best?
It depends on how much you hold and how you use it. A hardware wallet suits long-term savings, a software wallet suits small balances and apps, and a reputable custodial account suits people who do not want to manage keys. Many people use a hardware wallet for savings and a software wallet for daily use.
Is an exchange account a crypto wallet?
It works like one, but it is a custodial wallet: the exchange holds the private keys and you hold a claim on the exchange. You can usually withdraw to your own wallet, which turns that claim into crypto you control.
What is a multi-signature wallet?
A multi-signature wallet needs approvals from several keys to move funds, for example two of three or three of three. Businesses, funds and careful individuals use it so that one stolen key alone cannot move the assets; in setups such as two of three, losing one key does not lock the funds either.
Are hardware wallets immune to hacking?
No. They protect keys from malware on your computer, but you can still be tricked into approving a malicious transaction, lose your seed phrase backup, or buy a tampered device from an unofficial seller. Always check the transaction details on the device screen before approving.
📚 Sources & References
- U.S. SEC, Investor.gov — Crypto Asset Custody Basics for Retail Investors (12 Dec 2025) (accessed 21 Oct 2026)
- ethereum.org — Ethereum wallets (accessed 21 Oct 2026)
- Bitcoin.org — Choose your wallet (accessed 21 Oct 2026)
- Safe — What is Safe? (multi-signature smart accounts) (accessed 21 Oct 2026)
- ethereum.org — Ethereum security and scam prevention (accessed 21 Oct 2026)
Disclaimer: This content is for educational purposes only and does not constitute financial, tax, or legal advice. Digital assets are volatile and you can lose some or all of the money you invest. Never share your private keys or seed phrase with anyone, including people claiming to be support staff. Wealtii is not registered or licensed with any financial regulator; see our Regulatory Status page.
