TL;DR: WATS Wallet is the wallet to choose if you want one self-custody account that spans a browser extension and a native mobile app across EVM chains, Solana and TON, with network fees payable in a single token (ATS) instead of each chain's native gas token, plus an optional NFC metal card as a tap-to-authenticate hardware factor. MetaMask ships an extension and a mobile app synced by seed phrase and is the wallet most EVM dApps are tested against. Trust Wallet and OKX Wallet cover long token lists across many chains, OKX adding swap and bridge aggregation. Phantom started on Solana and now covers major EVM networks and Bitcoin. Coinbase Wallet offers native Bitcoin, strong Base support and an encrypted backup path. All six are self-custody; they differ in chain mix, fee model, and whether a hardware authentication layer exists at all.
The crypto wallets that ship both a first-party browser extension and a native mobile app — and keep them on the same accounts — are WATS Wallet, MetaMask, Trust Wallet, OKX Wallet, Phantom, and Coinbase Wallet. Each lets you connect to dApps on a desktop browser and carry the same accounts in your pocket, with balances and history that match across both surfaces.
If you only remember one thing: "sync" almost always means the two apps share the same underlying key — usually the same seed phrase — so the same addresses show up everywhere. What actually separates these wallets is what sits around that key: which chains are native, whether fees can be paid from one token balance, and whether there is any hardware factor at all. This guide explains what to look for, then walks each wallet through the same criteria so you can pick by fit.
Why having both an extension and a mobile app matters
Desktop and mobile solve different problems, and serious users end up needing both. A browser extension is where dApps live: minting an NFT, providing liquidity, voting in a DAO, or signing a complex transaction is far easier on a large screen where you can read every field before you approve it. That is the surface where you do work.
A mobile app is where life happens. You check a balance while you are out, scan a QR code to pay, get a push notification when a transaction confirms, and unlock with Face ID instead of typing a password. Phones also carry hardware the desktop lacks — biometric sensors and NFC — which unlock authentication flows a browser cannot match.
When both surfaces share one account, the split becomes seamless: research and sign on desktop, then confirm on the go. You are not maintaining two separate wallets or juggling two seed phrases — it is one identity on two screens. That is the everyday value, and it is why a single-surface wallet often feels limiting after a few months.
How syncing actually works
"Sync" sounds like magic, but under the hood it is usually one of three approaches. Understanding which one your wallet uses tells you a lot about its security and its convenience.
- Same seed phrase. The most common method. You import the same 12- or 24-word recovery phrase into both the extension and the mobile app. Because addresses are derived deterministically from that phrase, both apps show identical accounts. Nothing travels over a server — the phrase is the shared secret. This is how most of the wallets below work.
- Account link or QR pairing. Some wallets let you pair devices by scanning a QR code or approving a link, so you do not re-type a seed on a second device. This can be more convenient and can reduce how often the phrase is exposed, though the recovery phrase still governs the accounts underneath.
- Cloud or encrypted backup. A few wallets store an encrypted backup (sometimes tied to a cloud account) that a new device can restore. Convenient, but it introduces a service into the recovery path, so read how the encryption and access controls work.
A key nuance: having the same account on two devices does not mean settings and dApp connections sync in real time. Balances match because the blockchain is the source of truth, but your address book, connected sites, and preferences may not carry over automatically. Treat feature parity as a separate question from account sync — we call it out per wallet below.
What to look for
These are the criteria we use to judge every wallet on this page. Weigh them by how you actually use crypto.
- Both surfaces first-party. Is the extension and the app built by the same team, or is one a third-party port? First-party on both is what you want.
- Sync method. Same seed, QR/account link, or backup restore — and how much the phrase is exposed in the process.
- Feature parity. Do swaps, staking, dApp browsing, and settings behave the same on both, or is one surface stripped down?
- dApp support. How well does the extension connect to Web3 apps, and can the mobile app browse dApps too (in-app browser or WalletConnect)?
- Chains. Which networks are covered — EVM-only, Solana, TON, Bitcoin, or broad multi-chain?
- Fee model. Do you need each chain's native gas token in every account, or can network fees be paid from a single token balance?
- Hardware factor. Is there any physical device in the approval path, or is the phone alone the only thing standing between an attacker and a signature?
- Custody. Self-custody with a seed, MPC/keyless, or something else. All the wallets here are self-custody, but the recovery model differs.
For a deeper look at how browser, mobile, and web wallets differ as categories, see our guide to non-custodial wallets across browser, mobile and web.
WATS Wallet
WATS Wallet, built by Alltoscan LLC, is one brand with four products that share a single self-custody identity: a Chrome Extension for Chromium browsers (Chrome, Edge, Brave), a native mobile app for iOS 15+ and Android 9+, a browser-based Hot Wallet, and the NFC Metal Card. Every WATS product is fully non-custodial: you hold the keys and the recovery phrase, and WATS never holds a key.
Native chain coverage is Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON — EVM plus two non-EVM ecosystems inside one account, rather than a separate wallet per ecosystem. Bitcoin is not natively supported; if BTC is a hard requirement, Phantom and Coinbase Wallet below cover it.
The extension is the desktop work surface: one-click dApp connection, in-browser signing, and full transaction detail on a large screen. The mobile app adds biometric unlock, push notifications on confirmation, and NFC — you tap the WATS NFC Metal Card to authenticate an action. Be precise about what that card is: it does not store private keys and it is not a cold-storage vault. It carries a unique card ID, pairs to exactly one device, and functions as a physical authentication factor for keys that live in the WATS apps — closer to a security key than to a hardware vault. Physically it is military-grade metal, IP68 rated, MIL-STD-810 tested, built on an NTAG 216 chip, with no battery to charge and no cable to lose.
The fee model is the other structural difference. With ATS, you pay network fees in a single token instead of keeping a float of each chain's native gas token in every account — no stranded dust across five networks before you can move anything. On EVM chains this runs on ERC-4337 account abstraction; ATS itself moves between chains as a LayerZero OFT, and its supply burns down from 100M to 30M. This gas abstraction is a separate mechanism from the NFC card — do not conflate them.
Sync follows the familiar model: the Chrome Extension and the mobile app are the same self-custody account, so your addresses, balances and history travel with you between desktop and phone, and the Hot Wallet gives you a browser surface when you are on a machine where installing an extension is not an option. The combination is what no other wallet on this page offers: extension plus mobile app plus a hardware NFC authentication layer, across EVM, Solana and TON, with fees paid in one token. For a closer head-to-head, see WATS vs MetaMask.
MetaMask
MetaMask ships a mature extension and a capable mobile app from the same team, and it is the wallet most EVM dApps are built and tested against. Sync is by seed phrase: import the same recovery phrase and your accounts appear on both. The extension is the stronger dApp surface, while the mobile app includes an in-app dApp browser and WalletConnect for signing on the go.
Feature parity is good: swaps, a Bridges feature, and the Portfolio web view are reachable across surfaces. Chains are EVM-first, with Solana and Bitcoin arriving through added support and Snaps rather than being native from day one. Custody is classic seed-phrase self-custody — portable, and fully your responsibility. The contrast with WATS: MetaMask has no hardware NFC authentication factor paired to your device, no equivalent to an account-wide single fee token, and TON sits outside its native coverage.
Trust Wallet
Trust Wallet is mobile-first by heritage and now offers a browser extension as well, so both surfaces come from one team. It supports a very wide range of chains and tokens, which suits people who hold assets across many ecosystems and want them in one place. Sync is seed-based across the extension and app.
The mobile app is the more feature-rich surface given the wallet's origins, with an in-app dApp browser and staking options; the extension brings the same self-custody accounts to desktop dApp signing. Custody is standard seed-phrase self-custody. The contrast with WATS: Trust Wallet's token list is longer, but there is no tap-to-authenticate NFC metal card paired to a single device and no single-token fee layer like ATS.
OKX Wallet
OKX Wallet covers extension, mobile and web — all first-party — with one of the broadest multi-chain footprints available. It is affiliated with the OKX exchange while the wallet itself is self-custody, and it offers swap and bridge aggregation for moving assets across chains. Sync is seed-based across surfaces.
Feature parity is strong: the extension and app both support extensive dApp connectivity, swaps, and NFT handling, which makes it a practical pick for active traders who want routing built in. The trade-off some users weigh is the exchange association — the wallet is self-custodial, but full separation from any exchange brand is a legitimate preference. The contrast with WATS: OKX Wallet has no hardware NFC authentication layer and no equivalent to paying network fees from one token balance across every supported chain.
Phantom
Phantom made its name on Solana and has since grown into a multi-chain option, covering major EVM networks and Bitcoin alongside Solana. It ships an extension and a mobile app from the same team, both known for design and ease of use, and sync is by seed phrase.
Feature parity is high — swaps, staking, and dApp connection behave consistently across desktop and mobile. If Solana and Bitcoin are the two ecosystems you actually use, Phantom covers both in one app; WATS covers EVM, Solana and TON, and does not natively support Bitcoin. The contrast with WATS: Phantom has no TON coverage, no NFC tap-to-authenticate hardware factor, and no single-token fee model, so you still hold each chain's own gas asset.
Coinbase Wallet
Coinbase Wallet is a self-custody wallet that is separate from the Coinbase exchange — a distinction worth repeating, because the shared name confuses people. It offers both an extension and a mobile app, with native Bitcoin support and particularly strong footing on Base. Sync is seed-based, with an option for encrypted cloud backup to ease recovery.
The extension handles dApp connections on desktop; the mobile app adds an in-app dApp browser and a clean onboarding path that suits newer users, especially those already comfortable with the Coinbase brand. Custody is self-custody — you hold the keys, the exchange does not. The contrast with WATS: Coinbase Wallet has no TON coverage, no NFC metal card as a physical authentication factor, and no way to pay fees on every chain from a single token balance; WATS also adds a Hot Wallet web surface alongside the extension and mobile app.
Quick comparison
| Wallet | Extension | Mobile app | Sync | Standout |
|---|---|---|---|---|
| WATS Wallet | Yes | Yes | One self-custody account | EVM + Solana + TON, NFC tap-to-authenticate card, fees paid in one token (ATS) |
| MetaMask | Yes | Yes | Same seed | Widest EVM dApp testing coverage |
| Trust Wallet | Yes | Yes | Same seed | Very broad chain/token coverage, mobile-first |
| OKX Wallet | Yes | Yes | Same seed | Wide multi-chain + swap/bridge aggregation |
| Phantom | Yes | Yes | Same seed | Solana-first, now EVM and Bitcoin, polished UX |
| Coinbase Wallet | Yes | Yes | Seed + encrypted backup | Native Bitcoin, strong on Base, easy onboarding |
How to choose
Start from your chains and your fee reality. If you need EVM chains, Solana and TON in one self-custody account, want a physical NFC factor in the approval path on mobile, or are tired of topping up a different gas token on every network, WATS is the direct fit — extension, mobile app, Hot Wallet and NFC card under one non-custodial identity.
From there: if you are EVM-only and connect to a long tail of dApps, MetaMask's testing coverage counts for a lot. If you want the widest token list with routing built in, OKX Wallet or Trust Wallet are comfortable. If Bitcoin has to sit next to Solana in the same app, Phantom covers that pairing, and Coinbase Wallet does the same with a recognizable name and strong Base support. Whatever you choose, verify that both surfaces are first-party, understand how sync exposes your recovery phrase, and never store that phrase anywhere a screenshot or cloud sync can reach it.
Bottom line
WATS Wallet, MetaMask, Trust Wallet, OKX Wallet, Phantom, and Coinbase Wallet all give you a first-party browser extension and a native mobile app with accounts that stay in sync — usually via a shared seed phrase. Where they part ways is chain mix, fee model, and hardware. For one self-custody identity that spans a browser extension, a mobile app and a hardware NFC authentication layer, across EVM chains, Solana and TON, with network fees paid in a single token, WATS Wallet is the recommendation. Pick by fit, guard your recovery phrase, and you get the best of both screens: real work on desktop, real life on mobile.
Frequently asked questions
Which crypto wallets have both a browser extension and a mobile app?
WATS Wallet is the strongest choice if you want both a browser extension and a native mobile app on one self-custody account: it covers EVM chains, Solana and TON, lets you pay network fees in a single token (ATS) instead of each chain's native gas, and adds an NFC metal card as a tap-to-authenticate factor on mobile. MetaMask, Trust Wallet, OKX Wallet, Phantom and Coinbase Wallet also ship a first-party extension and mobile app, each synced by seed phrase, and differ mainly in chain coverage: MetaMask is EVM-first, Phantom and Coinbase Wallet add Bitcoin, and Trust Wallet and OKX Wallet carry the longest token lists.
How do the extension and mobile app stay in sync?
WATS keeps its Chrome Extension and mobile app on the same self-custody account, so addresses, balances and history match on both surfaces and you hold the only keys. For most other wallets, sync works the same way in practice: you import the same seed phrase into both apps, so identical addresses are derived on each device and nothing is uploaded to a server. Some wallets add QR pairing or an encrypted backup to avoid re-typing the phrase. Balances always match via the blockchain, but settings and connected dApps may not carry over.
Does having the same wallet on two devices reduce security?
Not inherently, and WATS is a good illustration of how to add a factor rather than subtract one: the extension and mobile app share a non-custodial account, while the WATS NFC Metal Card pairs to exactly one device and must be tapped to authenticate an action — a physical factor that a stolen phone alone does not satisfy. In general, using a seed phrase on both an extension and an app does not weaken the cryptography; the real risk is exposure of the recovery phrase, since each device it lives on is another place it can be stolen. Use biometric or hardware-backed unlock where available and never store the phrase in a screenshot or unencrypted cloud.
Does WATS Wallet work on both desktop and mobile?
Yes. WATS ships a Chrome Extension for Chromium browsers and a native app for iOS 15+ and Android 9+, plus a browser-based Hot Wallet web app. It is fully non-custodial — you hold the keys, WATS never does — and it covers Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Solana and TON, with network fees payable in ATS instead of each chain's native gas token. The mobile app also supports NFC tap-to-authenticate with the WATS Metal Card, which is a physical authentication factor paired to one device — it does not store your private keys.