# Linea data apps > Linea is a zkEVM rollup that burns ETH and LINEA with its fees. Its apps cover gas, activity, the dual burn and its costs to settle on Ethereum. Markdown copy of https://voltfincrypto.com/chains/linea ## Ethereum - [ERC-4337 Account Abstraction: UserOps and Paymasters](https://voltfincrypto.com/apps/erc-4337-account-abstraction) (dashboard, planned): How many ERC-4337 UserOperations run each day on each chain, and how much of their gas do paymasters sponsor? - [Multicall3, Permit2 and EntryPoint Addresses by Chain](https://voltfincrypto.com/apps/multicall3-permit2-entrypoint-addresses) (table, planned): Is Multicall3, Permit2 or an ERC-4337 EntryPoint deployed on a given chain, at its usual address and with the expected code? ## Layer 2s - [Ethereum TPS: Mainnet and Layer 2 Transactions per Second](https://voltfincrypto.com/apps/ethereum-tps) (dashboard, planned): How many transactions per second do Ethereum and its layer 2s process right now, in total and per chain? - [Ethereum Layer 2 List Ranked by Activity, Fees and Value](https://voltfincrypto.com/apps/ethereum-layer-2-list) (table, planned): Which Ethereum layer 2s are the largest by transactions, users, fees and value locked? - [Ethereum L2 Fees Compared: Cost per Transaction](https://voltfincrypto.com/apps/ethereum-l2-fees) (dashboard, planned): Which Ethereum layer 2 is cheapest for a transfer or a swap right now? - [Ethereum L2 TVL: Value Locked in Rollup Bridges](https://voltfincrypto.com/apps/ethereum-l2-tvl) (dashboard, planned): How much value is locked on each Ethereum layer 2, and how much of it sits in canonical bridges on Ethereum? - [L2 Profitability: Fees Earned vs Costs Paid to Ethereum](https://voltfincrypto.com/apps/l2-profitability) (dashboard, planned): How much does each Ethereum layer 2 earn from user fees, and how much does it pay Ethereum? - [Top Ethereum L2s: Monthly League Table of Rollups](https://voltfincrypto.com/apps/top-ethereum-l2s-monthly) (report, planned): Which Ethereum layer 2s grew or shrank the most this month by activity, fees and value locked? - [EVM Chain List: Chain IDs, Native Tokens and RPC Support](https://voltfincrypto.com/apps/evm-chain-list) (table, planned): What is the chain ID and native token of each EVM chain, and which RPC methods do its public endpoints support? - [Linea Stats: Gas, Activity and the ETH and LINEA Burn](https://voltfincrypto.com/apps/linea-stats) (dashboard, planned): How busy is Linea, what does gas cost there and how much ETH and LINEA has its burn destroyed? - [L2 Bridge Flows: Net Deposits from Ethereum by Chain](https://voltfincrypto.com/apps/l2-bridge-flows) (dashboard, planned): Which layer 2s are gaining or losing assets through their canonical bridges with Ethereum? - [L2 Withdrawal Times to Ethereum by Rollup](https://voltfincrypto.com/apps/l2-withdrawal-times) (dashboard, planned): How long does a native withdrawal from each layer 2 to Ethereum take right now? - [Across Protocol Bridge: Volume, Relayer Fees and Fill Times](https://voltfincrypto.com/apps/across-bridge-volume) (dashboard, planned): How much moves through the Across bridge on each route, what does it cost and how fast do relayers fill it? - [WETH and Wrapped BTC Token Addresses by Chain](https://voltfincrypto.com/apps/wrapped-btc-eth-token-addresses) (table, planned): What is the WETH, WBTC or cbBTC contract address on each chain, and who issues or backs each one? - [Rollup Decentralization: Upgrade Keys and Exit Windows](https://voltfincrypto.com/apps/rollup-decentralization) (table, planned): Who can upgrade each rollup's bridge contracts, and how much notice do users get before an upgrade? - [L2 Sequencer Uptime: Block Production Gaps by Chain](https://voltfincrypto.com/apps/l2-sequencer-uptime) (dashboard, planned): Is each Ethereum layer 2 producing blocks on schedule, and when did block production last stall? ## DeFi - [PancakeSwap Volume and CAKE Burn by Chain and Version](https://voltfincrypto.com/apps/pancakeswap-volume-cake-burn) (dashboard, planned): How much trades on PancakeSwap and on which chains, and how much CAKE does its revenue burn each week? ## Staking and restaking - [Liquid Restaking Tokens: Backing and Exchange Rates](https://voltfincrypto.com/apps/liquid-restaking-backing) (dashboard, planned): Are liquid restaking tokens like weETH, rsETH and ezETH fully backed right now? - [ether.fi Staking: eETH and weETH Supply, Validators and Withdrawals](https://voltfincrypto.com/apps/etherfi-eeth-weeth-tracker) (dashboard, planned): How much ETH backs eETH and weETH, and how much of it is still restaked? - [Kelp rsETH Tracker: Backing, Supply by Chain and Withdrawals](https://voltfincrypto.com/apps/kelp-rseth-tracker) (dashboard, planned): Is every rsETH on every chain backed, and how long does an rsETH withdrawal take? - [Renzo ezETH Tracker: Supply, Restaked Assets and L2 Deposits](https://voltfincrypto.com/apps/renzo-ezeth-tracker) (dashboard, planned): What backs ezETH, and how much ezETH on layer 2s is still waiting for its ETH to reach Ethereum? ## Markets and trading - [Airdrop Retention Report: Who Held and Who Sold](https://voltfincrypto.com/apps/airdrop-retention-report) (report, planned): After an airdrop, how much of the claimed tokens do recipients still hold after thirty days, and how much went to exchanges? ## Wallets and whales - [Gas Spent Calculator: Total Fees Paid by a Wallet](https://voltfincrypto.com/apps/gas-spent-calculator) (table, planned): How much has this wallet paid in gas fees on each chain, and in each year?