Every signature on Ethereum today rides on ECDSA. A sufficiently capable quantum computer reads those signatures in minutes. Qrypt replaces them with CRYSTALS-Dilithium and Falcon-1024, the lattice signatures NIST standardised for this exact threat. Across a cold wallet, a mobile app, and a web wallet.
Cold wallet for storage. Mobile for daily use. Web for dApps. Every signature, on every surface, is post-quantum by default.
An air-gapped hardware wallet that signs every transaction with lattice cryptography. Connects through QR codes, never USB. Your seed leaves the device only when you say it does.
A full post-quantum wallet on iOS and Android. Pair with Qrypt Cold over QR for hardware signing, or run standalone with hybrid keys.
A wallet that lives at a URL. Open app.qrypt.io in any browser. Every EVM dApp, signed post-quantum, with no install.
The device never opens a network connection. It signs what you show it on screen, in a language no quantum computer can read back. Then it gives you a QR, and goes quiet again.
Ships Q4 2026. Limited first run. No charge until shipment.
Every signature in the Qrypt stack comes from one of four NIST-standardised schemes, selected for the job and bound to the same key model.
Every Ethereum wallet today derives a public key from a private key on an elliptic curve. Shor's algorithm reverses this in polynomial time on a sufficiently large quantum computer. Once a public key is on chain, it is harvested forever.
A lattice-based digital signature scheme. Its hardness rests on Module Learning With Errors, a problem that quantum computers offer no known shortcut for. Standardised by NIST as FIPS 204 in 2024. Qrypt signs with Dilithium-3 by default.
A NTRU-lattice signature with the smallest post-quantum signature shipping today. Already live on Algorand. We use it for keys that must touch the chain often, where bytes are expensive.
Hash-based signatures with no algebraic structure. Slow and large, but the most conservative post-quantum option known. Used as a long-term escape hatch should any lattice scheme weaken.
While legacy chains and dApps still expect ECDSA, Qrypt runs a hybrid signature: ECDSA in parallel with Dilithium. The transaction stays compatible. The security inherits the stronger of the two.
A side-by-side of the wallet you have today and the wallet you can move to. No screaming. Just the spec.
Ethereum
Base
Arbitrum
Optimism
Polygon
zkSync
Linea
Scroll
Avalanche
BNB
Mantle
BlastEthereumBaseArbitrumOptimismPolygonzkSyncLineaScrollAvalancheBNBMantleBlastiOS and Android. Pair it with QRYPT.COLD for the heavy custody. Run it alone for anything else. Scroll to step through the flows.
Total balance across accounts and collectibles. Cold-linked or standalone, the view is identical. Every chain Qrypt supports surfaces in one feed.
Apple Pay, SEPA, Mercuryo, Simplex. Compare offers in plain numbers. Your keys never move. The crypto lands directly in your post-quantum account.
Optional debit card linked to your wallet. Tap to pay, settle in USDT. Every charge lands back here, with the receipt in plain English.
Route through 1inch and the best venue. Confirm on your hardware wallet by QR. No private key leaves the device. Hybrid signature lands on chain.
Run Qrypt from any browser. The dApp sees a wallet. You see plain language and a post-quantum signature.
No install, no extension. Open app.qrypt.io in any modern browser and the wallet is right there.
Drop-in EIP-1193 provider. The dApp sees a wallet. The signature it receives is post-quantum.
Scan a QR and the web app turns into a remote for your hardware wallet. Keys stay offline.
Every transaction is decoded into human English. You see what you sign before you confirm it.
A utility token. Spend it for hardware, for fees, for early access. Full vesting and distribution in the documentation.
Pay for QRYPT.COLD with $QRYPT to take a price cut. Stack with first-run priority and the limit drops further.
Hold $QRYPT to reduce relayer fees on transactions sent through Qrypt apps. Discount scales with balance.
Token holders are queued first for limited-run hardware, beta features, and the public sale allocation.
Protocols spend $QRYPT to use the post-quantum signing SDK. One credit per signature, billed in token.
We did not start with a token. We started with cryptography. Then we made it portable. Then we made it daily.
Short answers to what people actually ask. Hardware, hybrid mode, migration, the token, all of it. Click to expand.
Join the waitlist for the cold wallet and the public sale. No charge until shipment. We email when each surface opens. Nothing else.