Coinbase Wallet was rebranded as Base App in July 2025, but the product’s core design stayed the same. It remains a self-custody wallet, with private keys stored on the user’s device and every transaction approved inside the app. The wallet connects natively to Base, Coinbase’s Ethereum Layer 2 network launched in August 2023, so users can access Base applications without manually adding an RPC endpoint or chain ID.
Built-in Base support uses one address across multiple EVM chains
Base is treated as a built-in network inside the wallet, and balances for ETH, USDC, and other Base assets appear automatically after a user switches over. The wallet uses a single key pair to manage addresses across several EVM chains, including Ethereum mainnet, Base, Optimism, Arbitrum, and Polygon. That setup lets the same address hold different assets on different chains without requiring separate wallets. To move funds onto Base, users can bridge from Ethereum or another chain, or send assets directly from a linked Coinbase exchange account onto Base.
After the Flashblocks upgrade in July 2025, Base reduced block times from 2 seconds to about 200 milliseconds. The source material says transactions usually settle in under one second, with costs amounting to only a small fraction of Ethereum mainnet fees.
Fee model combines L2 execution and Ethereum data costs
Each Base transaction includes two cost layers: an L2 execution fee for computation on Base and an L1 security fee for publishing data to Ethereum mainnet. In most cases, the L1 portion is larger and moves with Ethereum gas conditions. Base sets a minimum base fee of 0.005 gwei on the L2 side to avoid fee collapse during quiet periods.
The article’s example shows that a 200,000 gas transaction, with ETH priced around $2,000, would have a minimum L2 cost of roughly $0.002. Simple ETH or ERC-20 transfers usually cost less than half a cent. Coinbase Wallet does not charge an extra commission for Base transfers. Users only pay the blockchain fee, and the app displays the estimated cost before signing while also allowing priority adjustments.
Support covers tokens, NFTs, payments, and dApps inside the wallet
The wallet supports thousands of ERC-20 tokens, NFTs, and stablecoins. On Base, the main assets highlighted in the source are native USDC, cbBTC, and ETH. Because Base is fully EVM-compatible, many Ethereum-native applications can run on Base after redeployment. The ecosystem examples listed in the material include DEXs, lending markets, perpetuals platforms, NFT marketplaces, and prediction markets, with names such as Aerodrome, Uniswap, Aave, and Morpho.
Coinbase Wallet also includes a built-in dApp browser and a mini app directory. Users can open an application inside the wallet and sign transactions on demand without leaving the interface. For payments and identity, the product also supports Base Pay and Base Account. Base Pay routes USDC payments through a Coinbase-built checkout flow, while Base Account gives users a single identity through the “Sign in with Base” feature.
Recovery options extend beyond seed phrases, but user responsibility remains full
On the security side, Coinbase Wallet operates as a non-custodial hot wallet. Private keys are generated on the user’s device and are not transmitted to Coinbase servers. Coinbase cannot recover a lost seed phrase, freeze the wallet, or reverse a transaction. The default recovery method is a 12-word seed phrase, though users can also enable passkeys or store an encrypted backup in iCloud or Google Drive. According to the source, the cloud backup uses AES-256-GCM encryption with a user-defined password.
The app also supports PIN protection, biometric locks, and the ability to revoke dApp connections. At the same time, self-custodied crypto is not covered by FDIC or SIPC protection, and virtual currency transactions cannot be reversed. A phishing approval, a mistaken transfer, or a leaked seed phrase can result in permanent loss of funds.
Setup is simple, but key management still falls on the user
The source says the app is available on iOS and Android, while the browser extension supports Chrome, Brave, and Edge. Users are advised to verify that the developer name is “Coinbase, Inc.” before installation, as fake clones do appear. During setup, users can create a new wallet or import an existing one from another self-custody product such as MetaMask or Trust Wallet.
In practical terms, Base App keeps the structure of Coinbase Wallet while making Base a more central entry point. Low transfer costs, near-instant confirmations, direct links to Coinbase accounts, and in-wallet access to dApps define the product. Control over keys, seed backups, and approval risk still sits entirely with the user.