SDAEX
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SDAEX

A clear window onto the Bitcoin network and the chains around it — blocks, fees, halvings and networks, on your iPhone.

Block explorerCandlestick chartsFee plannerHalving scheduleL1 & L2 networksRead-only tracker

Live chain

Watch new Bitcoin blocks arrive alongside the pending blocks forming in the mempool. Follow the next difficulty adjustment and the countdown to the next halving.

Fee planner

Choose input and output types and counts to size a transaction in vbytes, then see what each fee level costs in sats and in your currency.

Halving schedule

Browse each halving era, how much bitcoin has been issued so far, and the network figures behind it: estimated hashrate, recent difficulty adjustments and each pool's share of recent blocks.

Candlestick charts

See BTC and network token prices as candlesticks, with the open, high, low and close for periods ranging from 30 minutes to four days.

Networks

Compare 20 Layer 1 and Layer 2 networks: native token prices, a short description, consensus, execution environment, typical block time and, for most of them, the largest tokens in their ecosystem.

Tracker

Follow Bitcoin addresses and transactions without signing in or sharing keys. See balances, recent activity and confirmation progress at a glance.

Inside the app

Made for reading the chain

Live blocks and a BTC candlestick chart
Live blocks and a BTC candlestick chart
Candlestick charts for each network
Candlestick charts for each network
The halving schedule and issuance
The halving schedule and issuance
Fee estimates sized to your transaction
Fee estimates sized to your transaction
Block details, down to the fees
Block details, down to the fees
Read-only address and transaction tracker
Read-only address and transaction tracker
Where the data comes from

Public network data, shown clearly

Bitcoin blocks, mempool, fee estimates, difficulty, hashrate and lookups come from the public mempool.space API. Prices and network token data come from CoinGecko. Tracked addresses and transactions are kept on your device, and there's no account to create.

SDAEX is an information tool. It doesn't hold or move funds, and its content isn't financial advice.