Your Smart
Address Book.
Point your camera, scan the address, and know it's right. DoublyCheck catches clipboard hijackers and address swaps — and keeps a trusted record of the addresses you send to.
Point your camera, scan the address, and know it's right. DoublyCheck catches clipboard hijackers and address swaps — and keeps a trusted record of the addresses you send to.
Point your camera at any address, compare it against what you've saved or what's in your clipboard, and send knowing it's right.
Point your camera at any address on screen or paper. Compare it against your clipboard to catch swaps from clipboard hijackers — or scan a second source for a definitive side-by-side check.
Save trusted wallets, exchanges, and bank accounts by scanning a QR code or plain text. When a new address comes in, DoublyCheck tells you straight away if it matches a saved entry.
Every scan is logged on-device with a timestamp. If you've seen an address before, you'll know when — a quiet extra layer of confidence before every send.
Built-in checksum verification automatically corrects minor scan errors. Unlike a simple scanner, DoublyCheck knows whether an address is structurally valid before you compare it.
Watch how DoublyCheck helps you verify addresses in seconds. It's security made simple, visual, and fast.
From scanning addresses to detecting clipboard hijackers — here's how DoublyCheck keeps you safe.
All scanning and storage happens exclusively on your phone. No scans or addresses leave your device.
No sign-ups required.
Your address book is encrypted locally for an extra layer of security.
No distractions. Just the tool you need.
Verify addresses across the most popular formats and blockchains.
Download DoublyCheck and never worry about sending to the wrong address again.