SUM WALLET
Keys you
can't lose.
Signing, identity and balances across web, Chrome and iPhone. Private keys are decrypted into memory when you unlock and are never written to disk, which is the part most wallets get wrong.
LIVE
ON THE CHROME WEB STORE
3
PLATFORMS: WEB, CHROME, IOS
Ed25519
SIGNATURE SCHEME
THE DESIGN
Nothing sensitive touches storage.
The vault is decrypted only when you unlock it and exists in memory for as long as the session lasts. Close it and the key is gone from the machine entirely.
The same wallet runs as a browser extension, a React web client and a native SwiftUI app on iOS, all verifying data directly against the chain rather than through an API we control.
RECOVERY
Losing a device isn't losing your life.
If the device goes, a few of the people and institutions you already chose can put your key back together. No single one of them can do it alone, and we never hold a copy.
THE DETAIL
