Crypto Price Alerts & Alarms

A crypto price alert app that actually wakes you up.

Set a price alert on Bitcoin or any coin. When it hits, your phone rings like an alarm clock: loud, even on silent, until you tap stop or the ring time you set runs out.

⏰ An alarm, not just a push notification
When one goes off, it takes over your whole screen, even when the phone is locked, and it will wake up a sleeping phone. It rings and vibrates, and it gets through silent mode and Do Not Disturb. You choose the sound — Classic, Digital, Urgent, Beep or Clock — how loud it is, and how long it rings.

🔕 Or keep it quiet
Prefer ordinary push notifications? Choose that instead. You decide alarm or quiet for each alert you set.

🎯 Price alerts, set the way you trade
• An alert when the price goes above or below a number you choose
• Percentage alerts: a move up or down from a starting price
• An upper and a lower limit at the same time
• Repeating alerts that switch themselves back on after they go off, with a short pause in between

🪙 Live from the exchange
Prices come straight from Binance, Coinbase, Kraken, Bybit and KuCoin as the market moves — one multi-exchange list — so your alarm goes off on the move, not minutes later.
Thousands of cryptocurrency pairs, including Bitcoin (BTC), Ethereum (ETH), Solana (SOL), XRP, Dogecoin (DOGE), Cardano (ADA), BNB, Litecoin (LTC), Chainlink (LINK), Avalanche (AVAX), meme coins like Shiba Inu (SHIB) and PEPE, Polkadot (DOT), Tron (TRX), Toncoin (TON), Uniswap (UNI), Stellar (XLM), Hedera (HBAR), Near (NEAR), Aptos (APT), Arbitrum (ARB), Injective (INJ), Sui (SUI) and Bonk (BONK). Every alert that fires is saved in your history, so you can see what went off overnight.

🔒 No ads. We never sell your data.

Sentinel watches prices, sends the alert and wakes you up. It never holds your money, never places a trade, and gives no financial advice. Check your phone's alarm volume and permissions before relying on it overnight.

Free to try. Set one alert and hear it for yourself.

Recent changes:
Faster sign-in, and a quicker start.

• Signing in with Google is noticeably faster
• New accounts go straight to sign-in, so you reach your first alert sooner