Description
Carta Wallet is an NFC cold wallet in a slim card form factor that keeps your private keys securely offline. It uses enterprise-grade NFC chips from NXP Semiconductors to generate and store private keys directly on the card, ensuring they never touch an internet-connected device.
How It Works
- Tap to Initialize — Activate your Carta card by tapping it to any NFC-enabled phone.
- Tap to Sign — When you want to send crypto or interact with Web3, simply tap the card to your phone when prompted by the Carta App. The transaction is signed on the card itself.
- Two Cards Included — Each Carta set comes with 2 identical cards that work interchangeably as backup.
Security
- NXP Secure Element Chip — Enterprise-grade smart chip stores private keys offline on the card.
- No Batteries, No USB — The card is powered entirely by your phone's NFC field, eliminating battery failure and physical connection attack vectors.
- Serialized Anti-Theft Protection — Each card is serialized with a smart chip that prevents duplication.
- Card Freeze — If a card is lost, you can freeze it remotely from the app and get a replacement.
Supported Assets
- 10+ Blockchains including Ethereum, BNB Chain, Polygon, and more
- 10,000+ Tokens & NFTs — Broad support for cryptocurrencies and digital collectibles
- WalletConnect — Connect to any Web3 dApp for DeFi, staking, swaps, and NFT trading
The Carta App
Available on iOS and Android, the Carta App acts as your interface for managing crypto, tracking token prices, swapping assets, and buying/selling crypto — all secured by tapping your card.
Key Features
- Battery-Free Design — Never needs charging
- Tamper-Proof — Smart chip encryption prevents unauthorized access
- Portable — Credit card size, fits in any wallet
- Multi-Chain — Works across multiple blockchain networks
Highlights
Pros
- Provides in-app price tracking, whale movement alerts, and token portfolio management alongside cold storage functionality.
- Integrates with WalletConnect, enabling interaction with DeFi dApps, token swaps, and NFT marketplaces directly from the card.
- Comes as a 2-card backup set; lost cards can be frozen remotely from the app and replaced without losing access to funds.
- Features PIN and password protection per card with serialized anti-duplication chips to prevent unauthorized access and physical cloning.
- Stores private keys offline on NFC cards with NXP enterprise-grade secure chips, providing cold wallet security without requiring batteries or USB cables.
- Supports over 15 blockchain networks (Ethereum, BSC, Polygon, Avalanche, Arbitrum, Base, and more) and 10,000+ tokens and NFTs.
Cons
- App is only available in English with no multi-language support, reducing accessibility for non-English-speaking users.
- Requires an NFC-enabled smartphone (iOS 15.1+ or Android with NFC) and cannot be used directly with desktop computers or laptops.
- Offers no desktop companion app or browser extension, restricting wallet management exclusively to the mobile app.
- Bitcoin and Solana network support listed as planned for Q4 2024 remain unavailable, limiting appeal to BTC and SOL holders.
- Lacks a built-in display for on-card transaction verification, requiring users to trust the phone screen when confirming transactions.
- Has a limited track record with minimal independent reviews (only 1 App Store rating as of 2025) and a small established user base.