Disclosure: CoinCodeCap may earn a commission if you sign up through links on this page. Hardware wallet warning: Tangem is a self-custody wallet — losing all your Tangem cards (or ring + cards) AND not having a backup seed phrase means permanent loss of funds. Always purchase directly from tangem.com to avoid tampered devices. Test recovery with small amounts before committing significant holdings. This guide covers wallet specifications and trade-offs, not investment advice.
How I Reviewed This Wallet: I have hands-on experience with Tangem cards across 2-card and 3-card sets, plus the Tangem Ring (zirconium ceramic, launched 2024). This review reflects May 2026 reality: Swiss-based Tangem AG (founded 2017) has shipped 6M+ cards globally, the EAL6+ secure element architecture has had no public hacks since launch, the wallet supports 16,000+ assets across 85+ blockchains, and Tangem Pay (Visa card integration) is rolling out in 2026 starting with select regions then EU/UK in early 2026 aligned with MiCA. I tested NFC pairing on iPhone and Android, the seedless multi-card backup flow, optional 24-word seed mode, transaction signing via tap, NFT support, and WalletConnect DeFi access.
Tangem Wallet is a Swiss-engineered NFC card-based hardware wallet that takes the most radically simple approach in the cold-storage category: no battery, no display, no buttons, no cables, no recovery seed phrase required. The wallet is a credit-card-sized chip that talks to your phone via NFC tap. Your private keys live inside an EAL6+ certified secure element on the card. The defining innovation: instead of a 24-word seed phrase, Tangem uses a multi-card backup model — you receive 2 or 3 cards in a set, each holding the same cryptographic key, mathematically linked. Lose one card, use another. Each Tangem card or ring carries a 25-year hardware warranty.
Pricing is the most aggressive in the hardware wallet category: ~$55 for a 2-card set, ~$70 for a 3-card set, ~$150 for the Tangem Ring (which includes 2 cards plus the wearable zirconium ceramic ring). At those prices, Tangem competes directly with Ledger Nano S Plus ($79) and Trezor Safe 3 ($79), but with the seedless model and multi-card redundancy that neither offer. For users who find seed phrase management intimidating — which is the majority of new crypto users — Tangem removes the single biggest user-error category in self-custody. For power users who want broad chain support without specialized backup, Tangem also delivers (16,000+ assets across 85+ blockchains, including BTC, ETH, SOL, ADA, plus NFTs and WalletConnect DeFi).
| Quick Verdict | Tangem Wallet (May 2026) |
|---|---|
| Type | NFC card / ring hardware wallet (mobile-first, cold storage) |
| Manufacturer | Tangem AG (Switzerland, founded 2017) — 6M+ cards produced |
| Form factor | Credit-card-sized smart card OR zirconium ceramic ring (Tangem Ring, 2024) |
| Pricing (2026) | 2-card set ~$55 · 3-card set ~$70 · Tangem Ring ~$150 (with 2 cards) |
| Connectivity | NFC only · no battery · no buttons · no display · no cables |
| Secure element | CC EAL6+ certified (bank-grade) |
| Backup model | Multi-card seedless (cards are clones) OR optional 24-word seed phrase |
| Coin support | 16,000+ assets across 85+ blockchains (BTC, ETH, SOL, ADA, ERC-20, etc.) |
| NFT support | Native (Ethereum, Solana, Polygon) |
| DeFi access | WalletConnect (Web3 dApps) · built-in swap + staking |
| Companion app | Tangem (iOS + Android, 4.9 rating on both stores) |
| Hardware warranty | 25 years |
| Card durability | IP68 (Ring), ESD-resistant, X-ray-resistant, -25°C to 50°C operating range |
| Tangem Pay (Visa) | Rolling out 2026 (Paera LLC / Third National / Rain co-signing) — UK + EU early 2026 (MiCA-aligned) |
| Score (out of 5) | 4.4 / 5 — Best UX in the cold-storage category for mobile-first beginners; trade-offs are mature |
| 📌 Recommended for: Beginners moving funds off exchanges for the first time, mobile-first holders, frequent travelers, users who find seed phrase management intimidating. Skip if: you want desktop integration (no Tangem desktop app), need on-device transaction confirmation screens (use Ledger/Trezor/Cypherock), or want fully open-source firmware audit trail. | |
What Is Tangem Wallet?
Tangem AG is a Swiss company founded in 2017 that builds NFC-based hardware wallets in the form factor of credit cards (and as of 2024, a zirconium ceramic ring). The company has shipped over 6 million cards globally, putting it in the same scale category as established hardware wallet brands. Tangem’s design philosophy: hardware wallets should be as simple as a contactless payment card — no batteries to fail, no displays to crack, no cables to lose, no seed phrases to forget.
Each Tangem card embeds a CC EAL6+ certified secure element (bank-grade, the same standard as your credit card chips). The private key is generated on-card during initial setup and never leaves the chip — no PC, no phone, no server ever sees the key in cleartext. Transactions are signed inside the chip; only the signed transaction exits via NFC. Authentication requires the physical card AND a 6-digit access code you set during setup. After 6 incorrect attempts, the card permanently locks with exponentially increasing delays — making brute-force impractical.
The defining innovation is the multi-card backup model. Instead of writing down a 24-word seed phrase and storing it on paper or steel, you receive 2 or 3 cards in a set. During setup, all cards in your set become cryptographically linked clones of the same wallet — each card can sign transactions for the same accounts. Lose one card? Use another. The cards ARE your backup. (Tangem also offers an optional 24-word seed phrase mode for users who want compatibility with other BIP-39 wallets — see FAQ below.) For broader hardware wallet context, see our best hardware wallets guide and best non-custodial wallets guide.
Tangem Product Line (2026)
| Product | Price | Includes | Best For |
|---|---|---|---|
| Tangem 2-Card Set | ~$55 | 2 cards (1 active + 1 backup) | Solo users on a budget; minimum redundancy |
| Tangem 3-Card Set | ~$70 | 3 cards (1 active + 2 backups) | Most popular — distributed backup across 3 locations |
| Tangem Ring (2024) | ~$150 | 1 zirconium ceramic ring + 2 cards | Wearable form factor; ring stays on finger, cards as backup |
| Tangem Pay (Visa) | 2026 rollout | Visa card co-signed by Tangem secure element | Spending crypto via Visa rails (UK + EU early 2026, MiCA-aligned) |
Recommendation for most users: the 3-card set at ~$70 is the sweet spot. You get one card to use daily, two cards for distributed backup (home safe, bank deposit box, trusted family member). The Ring is a lifestyle product — fun if you want a wearable wallet, but the cards alone are functionally identical and cheaper. Tangem Pay extends Tangem’s reach into payment rails but is a separate product layer; the underlying wallet remains the same.
The Multi-Card Seedless Backup Model
This is the architectural feature that defines Tangem and differentiates it from every traditional hardware wallet. Here’s how it actually works:
- During setup: Tap the first (primary) card to your phone. The card’s secure element generates a fresh private key inside the chip. The key never leaves the chip in cleartext.
- Backup card pairing: Tap each backup card to your phone (one at a time). The primary card transmits the cryptographic key to each backup card via encrypted NFC channel — the keys are wrapped using session encryption, so even an attacker sniffing the NFC signal couldn’t extract them. After this step, all cards in your set hold identical private keys.
- During use: You only need ONE card to sign transactions. The other cards stay in safe storage as backups.
- If you lose one card: Use any other card in the set. The cards are functionally identical — there’s no “primary” vs “backup” distinction once they’re paired.
- If you lose all cards: Permanent loss IF you chose seedless mode. Tangem offers an optional 24-word seed phrase backup at setup for users who want belt-and-suspenders recovery (compatible with other BIP-39 wallets).
Key implications:
- No paper backup vulnerability — A house fire that destroys your safe doesn’t destroy your wallet if you have a backup card elsewhere
- No seed phrase memorization — The cards ARE the recovery mechanism
- No accidental seed phrase exposure — Phishing emails asking for your seed phrase don’t apply (you don’t have one in seedless mode)
- Geographic distribution easy — Distribute cards across home, bank box, family member; no need to obscure 24 words on paper
- Trade-off: If you lose ALL cards in seedless mode, funds are permanently inaccessible. Choose 3-card sets for meaningful redundancy.
Tangem Wallet — Pros & Cons
| ✅ Pros | ⚠️ Cons |
|---|---|
| Most affordable serious hardware wallet (~$55-$70 for full set) | No on-device transaction display — confirmation happens on phone |
| Seedless multi-card backup eliminates seed phrase risk | Mobile-only — no desktop app or full-node integration |
| 16,000+ assets across 85+ blockchains (broader than Arculus’s 57) | If you choose seedless and lose all cards, permanent loss |
| CC EAL6+ certified secure element (bank-grade) | Not all Tangem firmware is fully open-source (debated; partial transparency) |
| 25-year hardware warranty (longest in the category) | Limited DeFi tooling (relies on WalletConnect, no native MetaMask-style flows) |
| NFC-only connectivity (air-gap-equivalent, ~4cm range) | Tangem Ring at $150 is more lifestyle than functional necessity |
| Tangem Ring (2024): IP68, ESD/X-ray-resistant, -25°C to 50°C | 2-card set provides minimal redundancy (lose 1, you’re at 1 of 1) |
| 4.9 rating on iOS App Store and Google Play | Tangem Pay (Visa) only available in select regions in 2026 |
| Battery-free (no charging, no aging battery to replace) | Custom on-card key generation harder to verify than open-source firmware audits |
| Optional 24-word seed phrase mode for BIP-39 compatibility | “Cards are clones” model means a stolen card + access code = full wallet access (single attacker chokepoint) |
Tangem vs Card-Based Hardware Wallet Competitors
| Wallet | Price | Form Factor | Backup | Display | Coins |
|---|---|---|---|---|---|
| Tangem 3-Card | ~$70 | Plastic NFC cards (set of 3) | Multi-card clones (seedless) OR optional 24-word | None (uses phone) | 16,000+ across 85+ chains |
| Arculus | $99 | Single metal NFC card | 12-word seed phrase | None (uses phone) | ~57 |
| Cypherock X1 | $99-$250+ | Vault + 4 NFC cards | 2-of-5 Shamir Secret Sharing (seedless) | 0.96″ OLED on Vault | 9,000+ |
Honest comparison summary:
- Tangem wins on price + simplicity + chain coverage — Cheapest, easiest setup, broadest coin support among the card-based wallets. Best for beginners.
- Arculus wins on premium build + 3-Factor Authentication — Metal card vs plastic, biometric layer adds security. Best for premium feel at $99. See Arculus Wallet review.
- Cypherock wins on architectural innovation + on-device display — 2-of-5 Shamir Secret Sharing is genuinely novel; the Vault has its own screen for transaction confirmation. Best for serious holders. See Cypherock X1 review.
Tangem vs Traditional Hardware Wallets
| Wallet | Price | Display | Coins | vs Tangem |
|---|---|---|---|---|
| Tangem 3-Card | ~$70 | None (uses phone) | 16,000+ | — |
| Ledger Nano S Plus | $79 | OLED + buttons | 5,500+ | On-device display + Ledger Live mature ecosystem; less coin support; closed-source firmware |
| Ledger Stax | $399 | 3.7″ e-ink touchscreen | 5,500+ | Premium UX + NFT lock screen + Bluetooth — 5x the price. See Ledger Stax review |
| Trezor Safe 3 | $79 | OLED + buttons | 1,800+ | Open-source firmware (full); on-device display; less coin support |
| Trezor Safe 5 | $169 | 1.54″ color touchscreen | 1,800+ | Color touchscreen; open-source. Pricier; not card form factor |
| BitBox02 | ~$150 | OLED + sliders | 1,500+ | Swiss-engineered, microSD backup option. USB-only. |
| Foundation Passport | $259 | Color screen + keypad | BTC-only | Premium air-gapped Bitcoin-only via QR codes. 4x the price; specialist tool |
For broader cold storage context, see our best cold wallets guide and multi-signature wallets guide.
Setup & Daily Use
- Step 1: Buy direct from tangem.com — Avoid Amazon / eBay third-party listings. Tampered hardware is a real risk for any wallet.
- Step 2: Download the Tangem app — iOS App Store or Google Play. Verify publisher is “Tangem AG”.
- Step 3: Choose your backup mode — During setup, Tangem asks if you want seedless (multi-card only) or 24-word seed phrase mode. Beginners should choose seedless. Power users who want BIP-39 compatibility (recovery on Ledger / Trezor / any BIP-39 wallet if Tangem disappears) should choose seed mode.
- Step 4: Tap your primary card — Phone generates wallet inside the card’s secure element. The key is on the chip; nothing leaves it.
- Step 5: Tap each backup card to clone the keys — Each backup card now holds the same private keys (encrypted NFC transfer).
- Step 6: Set a 6-digit access code — Required for every transaction. Cannot be reset later — you’d need to factory-reset the cards and start over.
- Step 7: Distribute the cards — Recommended pattern: home safe (Card 1, daily-use), bank deposit box (Card 2), trusted family member (Card 3). For Ring users: ring on finger, 2 backup cards distributed.
- Step 8: Test recovery with small amounts — Send $5-10, then practice using a backup card to confirm everything works before depositing significant funds.
- Step 9: Use the app for daily management — Send, receive, view portfolio, swap, stake. For DeFi, use WalletConnect to connect to Uniswap, Aave, OpenSea, Magic Eden.
Who Should Buy Tangem Wallet?
- Beginners moving funds off exchanges for the first time — easiest hardware wallet UX in the category
- Mobile-first crypto users who manage everything from their phone
- Users intimidated by seed phrase management — Tangem’s seedless model removes the biggest user-error category in self-custody
- Frequent travelers — Cards slip into a wallet slot, no bulky USB device to carry
- Multi-coin holders — 16,000+ assets across 85+ chains is broader than most competitors
- Budget-focused users — $55-$70 for a 3-card set is the cheapest serious hardware wallet
- Inheritance planners — Distribute cards to heirs in advance; cryptographically linked clones simplify recovery
- Lifestyle users who want the wearable Ring form factor (~$150 with 2 backup cards)
Who Should NOT Buy Tangem?
- Power users who need on-device transaction display → Ledger Nano S Plus ($79) or Trezor Safe 3 ($79) have built-in screens. Tangem confirms transactions on phone display only.
- Desktop-first users → Tangem has no desktop app. Use Ledger Live, Trezor Suite, or Sparrow Wallet.
- Open-source firmware purists → Trezor (full open-source) or Cypherock X1 (firmware on GitHub) provide more transparency. See Cypherock X1 review
- Users wanting distributed Shamir-based redundancy → Cypherock X1 uses true 2-of-5 Shamir Secret Sharing where any single card alone reveals nothing. Tangem’s “cards are clones” means a single stolen card + access code = full wallet.
- True multisig requirements → Use Casa, Unchained, or Sparrow + multiple HW wallets. See multisig wallets guide
- Smaller holdings (<$500) → Software wallets like MetaMask, Phantom, or Trust Wallet are sufficient. See Trust Wallet vs MetaMask
- Users wanting premium metal build → Arculus ($99 metal NFC card by CompoSecure NASDAQ: CMPO) or Foundation Passport ($259 metal Bitcoin-only). See Arculus Wallet review
Frequently Asked Questions
Is Tangem Wallet safe?
Yes — Tangem uses a CC EAL6+ certified secure element (the same security standard as bank credit card chips), generates private keys on-card so they never leave the chip in cleartext, has a 6-incorrect-attempt permanent lockout with exponentially increasing delays, and has had no public hacks since its 2017 launch. Manufacturer Tangem AG is Swiss-based and operates under EU privacy regulations. The realistic failure modes are user-behavior issues: losing all cards in your set without a 24-word seed backup, sharing your access code, or buying from an unauthorized reseller. Buy direct from tangem.com, choose a 3-card set for meaningful redundancy, and consider enabling the optional 24-word seed phrase as belt-and-suspenders backup if you hold significant funds.
How does Tangem work without a seed phrase?
During initial setup, Tangem’s secure element generates a fresh private key on-card. When you tap the backup cards in your set to your phone, the primary card transmits the key to each backup card via an encrypted NFC channel — the keys are wrapped with session encryption so even an NFC sniffer cannot extract them. After this step, all cards in your set hold identical private keys (mathematically linked clones). You only need ONE card to sign transactions; the other cards stay in safe storage as backups. The cards ARE your recovery mechanism — no 24-word seed phrase to write down or remember. Lose one card, use another. Important: if you lose ALL cards in seedless mode, funds are permanently inaccessible. Choose 3-card sets for meaningful redundancy or enable the optional 24-word seed phrase mode at setup.
Tangem vs Ledger — which is better?
Different priorities. Tangem 3-Card ($70): mobile-first NFC card set, seedless multi-card backup, 16,000+ coins across 85+ chains, no on-device display, easiest setup, 25-year warranty. Ledger Nano S Plus ($79): USB device with OLED display + buttons, 5,500+ coins, traditional 24-word seed phrase, mature Ledger Live ecosystem (mobile + desktop), broader DeFi integrations. Choose Tangem if you’re a beginner, mobile-first, intimidated by seed phrases, or want broad chain coverage at the lowest price. Choose Ledger if you want on-device transaction confirmation, mature desktop integration, or established DeFi tooling. Both audited, both legitimate. Tangem’s seedless model is more beginner-friendly; Ledger’s display + ecosystem suits power users.
Tangem vs Cypherock — which should I choose?
Both seedless, both card-based, but different architectures and price points. Tangem 3-Card ($70): plastic cards in a set, all cards are clones (each holds the full key), tap-to-sign via phone. Cypherock X1 ($99-$250+): Vault device + 4 NFC cards using 2-of-5 Shamir Secret Sharing — each card holds only a SHARD (1 alone reveals nothing). Cypherock has a Vault display for on-device transaction confirmation; Tangem confirms on phone. Cypherock supports 9,000+ coins; Tangem 16,000+ across more chains. Choose Tangem for the simplest mobile-first UX at the lowest price. Choose Cypherock if you want true distributed redundancy where a single stolen card cannot compromise the wallet, or want on-device display + open-source firmware. See our Cypherock X1 review for the deep dive.
What if I lose a Tangem card?
Use any other card in your set. The cards are functionally identical clones — there’s no “primary” card distinction once they’re paired. Send the lost card’s address NOTHING (you can’t actually disable a lost card’s keys without moving funds, since the cards are cryptographically identical). Best practice: move funds to a fresh wallet if you suspect a card was stolen rather than just misplaced. Then re-initialize with a new set. The 25-year hardware warranty means Tangem AG will replace defective cards but doesn’t cover loss. If you lose ALL cards in seedless mode, funds are permanently inaccessible — there’s no customer service to recover them. This is why 3-card sets distributed across multiple locations are the recommended setup.
Is Tangem firmware open-source?
Partially. The Tangem mobile app source code is available on GitHub for community inspection. The card firmware itself uses a custom proprietary architecture inside the secure element — Tangem publishes documentation about the cryptographic protocols but doesn’t release the full secure element firmware as open-source (similar to how Ledger’s secure element firmware is closed-source while their wallet apps are open). For users who require full open-source firmware audit trail, Trezor and Cypherock publish more complete code on GitHub. Tangem’s approach is “verifiable cryptographic protocols” rather than “fully reproducible firmware builds.” Whether this satisfies your trust requirements depends on your threat model.
Does Tangem support DeFi, NFTs, and staking?
Yes to all three. NFTs: native support in the Tangem app for Ethereum, Solana, and Polygon NFTs. DeFi: connect via WalletConnect to Uniswap, Aave, Curve, OpenSea, Magic Eden, and any other WalletConnect-compatible dApp. The Tangem card signs transactions via NFC tap. Staking: built into the Tangem app for major proof-of-stake networks (ETH, SOL, ADA, ATOM, DOT, MATIC, and others). Swaps: built-in cross-chain swaps via integrated providers. Buy/sell: integrated fiat on-ramps (varies by region). For broader smart contract wallet context, see our best smart contract wallets guide. For dedicated staking wallet comparison, see our best staking wallets guide.
What is Tangem Pay (Visa)?
Tangem Pay is a 2026 product that extends Tangem into the Visa payment rail — a debit-style Visa card co-signed by your Tangem secure element. Unlike traditional crypto debit cards (Crypto.com Visa, Coinbase Card) that hold custody of your funds, Tangem Pay keeps custody on your Tangem card while providing Visa spending on top. The product is provided by Paera LLC, issued through Third National (a licensed Visa partner), with co-signing and compliance via Rain, ID verification via Sumsub, and on-chain monitoring via Elliptic. Rollout began in select regions in 2025 with UK and EU launches in early 2026 aligned with MiCA regulations. Most users will see a waitlist screen in the Tangem app outside launched regions.
How does the Tangem Ring work?
Launched 2024, the Tangem Ring is a wearable hardware wallet built into a zirconium ceramic ring. The ring contains the same NFC chip + EAL6+ secure element as the standard Tangem cards. Material: zirconium ceramic (extremely durable, scratch-resistant, temperature-stable from -25°C to 50°C). Rated IP68 (waterproof, dustproof). Hardware warranty: 25 years. The Ring kit ($150) includes the ring + 2 backup cards. Setup is identical to the card-only flow: tap the ring to your phone, generate keys, then tap the backup cards to clone. To sign transactions, tap your phone with the ring (typically the back of your hand). Functionally identical to cards — the ring is a lifestyle product, not a security upgrade. If wearable form factor doesn’t appeal to you, the 3-card set at $70 delivers identical functionality at less than half the price.
Verdict: Should You Buy Tangem Wallet?
Tangem is the best mobile-first hardware wallet for beginners and casual crypto users in 2026. The seedless multi-card backup model genuinely solves the biggest user-error category in self-custody (lost or exposed seed phrases). The 6+ million cards shipped, EAL6+ secure element, no public hacks since 2017, 25-year warranty, and Swiss manufacturing pedigree are all meaningful trust signals. At $55-$70 for a 3-card set, Tangem is the most affordable serious hardware wallet on the market. Score: 4.4/5.
The honest 2026 assessment: Tangem is the right choice for beginners moving funds off exchanges, mobile-first holders, frequent travelers, and users who hold a mix of major coins across multiple chains (the 16,000+ asset support across 85+ chains is broader than most competitors). The trade-offs are real: no on-device display, no desktop app, partial open-source coverage, and the “cards are clones” model means a stolen card + access code is enough for full wallet access (unlike Cypherock’s 2-of-5 model where any single card alone reveals nothing).
Skip Tangem if you need on-device transaction confirmation screens (Ledger / Trezor have them), fully open-source firmware (Trezor or Cypherock), distributed Shamir Secret Sharing (Cypherock X1), true multisig (Casa / Unchained / Sparrow + HW), or premium metal build (Arculus / Foundation Passport). For first-time hardware wallet buyers wanting the simplest possible mobile-first cold storage at the lowest price, Tangem is hard to beat.
Reviewed by Gaurav Agarwal, founder of CoinCodeCap. Direct hands-on experience with Tangem cards across 2-card and 3-card sets plus the Tangem Ring (2024 zirconium ceramic launch). Status (Tangem AG Swiss-based, founded 2017, 6M+ cards shipped, EAL6+ secure element, 25-year warranty, 16,000+ assets across 85+ chains, Tangem Pay Visa rollout 2026 with UK + EU early 2026 MiCA-aligned, optional 24-word seed mode for BIP-39 compatibility) reflects direct research and verification through May 2026.
⚡ Bottom Line: 2026 review of Tangem Wallet — Swiss-engineered NFC card hardware wallet by Tangem AG (founded 2017, 6M+ cards shipped). Battery-free, no display, no buttons, no cables. Pricing: 2-card set ~$55, 3-card set ~$70 (recommended), Tangem Ring ~$150. CC EAL6+ secure element, 25-year warranty, 16,000+ assets across 85+ blockchains. Seedless multi-card backup OR optional 24-word seed mode. Score: 4.4/5. Best for: Beginners moving funds off exchanges, mobile-first users, frequent travelers, users intimidated by seed phrase management. Skip if: need on-device display (use Ledger/Trezor), need desktop app, need distributed Shamir model (use Cypherock X1), or need premium metal build (use Arculus). Tangem Pay Visa launching UK + EU early 2026 (MiCA-aligned). No public hacks since 2017 launch.
Related Reading
📋 Card-Based Hardware Wallets: Arculus Wallet Review | Cypherock X1 Review
📋 Hardware Wallet Reviews: Ledger Stax Review | Wasabi Wallet Review | Coinbase Wallet Review
📋 Wallet Roundups by Type: Best Crypto Wallets (Pillar) | Best Hardware Wallets | Best Cold Wallets | Best Multisig Wallets | Best Smart Contract Wallets | Best Non-Custodial Wallets | Best Staking Wallets
🌍 Regional Wallet Guides: Canada | UAE | Germany | India
🔧 Wallet Roundups by Chain: Ethereum | Solana | Cardano | Monero | Anonymous Bitcoin
📘 Wallet Education: Different Types of Crypto Wallets
