# WATS Wallet — Full AI Knowledge Base

> WATS Wallet is a multi-product, non-custodial Web3 / crypto wallet brand by Alltoscan LLC (founded 2019). One identity unifies three products: a Chrome (Chromium) browser extension, a native iOS & Android mobile app, and a physical military-grade NFC Metal Card that pairs with a single device as a tap-to-authenticate second factor. Users send, receive, swap and bridge crypto across major EVM chains plus Solana and TON from a single interface. The marketing site (watswallet.com) is a single-page experience in 12 languages. Slogan: "The Strongest in Crypto." Positioning: "One identity. Three products. Everywhere you need Web3."

This is the extended `llms-full.txt` companion to https://watswallet.com/llms.txt — it inlines the full facts, specifications, FAQ and content catalog so an AI assistant can answer questions about WATS Wallet without further crawling.

- Site: https://watswallet.com
- Company: Alltoscan LLC (founded 2019)
- Last content update: 2026-07-02
- Languages: English (default), Turkish, Spanish, French, German, Italian, Portuguese, Russian, Chinese, Japanese, Korean, Arabic
- Localized pages: each page is also available under a locale prefix — https://watswallet.com/{locale}/<path> for tr, es, fr, de, it, pt, ru, zh, ja, ko, ar (English is unprefixed at the root).
- Custody model: non-custodial / self-custody across all products — WATS never holds a key

## What WATS Wallet is

WATS Wallet is a self-custodial Web3 wallet brand positioned alongside tier-1 wallets such as MetaMask, Phantom and Coinbase Wallet, with an institutional-trust focus on security and durable hardware. Rather than a single app, WATS is one wallet identity expressed across three products so users get browser, mobile, web and physical access from the same self-custodial wallet:

1. WATS Chrome Extension — in-browser Web3 access and transaction signing.
2. WATS Mobile App — native iOS and Android wallet.
3. WATS NFC Metal Card — a physical tap-to-authenticate companion card.

Two ideas define the brand:
- **One fee token (ATS):** on EVM networks, every action (swap, transfer, staking) is paid in a single token, ATS, instead of holding that chain's native gas token — this is "gas abstraction." Solana and TON are fully supported chains in WATS, but transactions there pay their own native fees (SOL / Toncoin).
- **A physical security companion:** the NFC Metal Card is a tap-to-authenticate device (NOT a key-storage cold card), bringing hardware-grade access to a software wallet.

## Products

### WATS Chrome Extension
- Type: Web3 browser extension (SoftwareApplication / FinanceApplication).
- Page: https://watswallet.com/chrome-extension
- Install: https://chromewebstore.google.com/detail/wats-wallet/hcfdepjikbhjocfdopeabjmonpnijoei
- Browsers: Chrome, Edge, Brave and any Chromium browser (Chrome 120+).
- What it does: one-click dApp connection and in-browser transaction signing from the toolbar.
- Price: free.

### WATS Mobile App (iOS & Android)
- Type: native mobile wallet (MobileApplication / FinanceApplication).
- Page / download router: https://watswallet.com/download
- iOS (App Store): https://apps.apple.com/app/id6743999237 — requires iOS 15+.
- Android (Google Play): https://play.google.com/store/apps/details?id=com.wats.wallet — package `com.wats.wallet`, requires Android 9+.
- Features: send / receive / swap / bridge crypto; Face ID / biometric unlock; push notifications for incoming transfers; NFC tap-to-sign with the WATS Metal Card. Pure self-custody. On EVM networks fees are charged in the single ATS fee token instead of the chain's native gas, exactly as in the Chrome extension; Solana and TON transactions pay their own native fees (SOL / Toncoin).
- Price: free.

### WATS NFC Metal Card
- Type: physical hardware companion (Product) — a tap-to-authenticate card, not key storage.
- Page: https://watswallet.com/nfc-card
- Store / buy: https://store.watswallet.com
- How it works: a military-grade physical card with an embedded NTAG 216 chip; tap it to an NFC-enabled phone to authenticate and secure WATS Wallet accounts.
- Entry price: from $54.90 (2-card set). Other listed variants: 3-card set $69.90, Ring pack $160. Confirm current pricing at the store.
- Full specifications:
  - Water resistance: IP68 (submersible 1.5 m / 30 min)
  - Durability: MIL-STD-810, operating range −40 °C to +85 °C
  - EMI / radiation shielding
  - NFC chip: NTAG 216, NFC Forum Type 4
  - Frequency: 13.56 MHz
  - Encryption: AES-128
  - Standard: ISO/IEC 14443
  - Dimensions: CR-80 standard, 85.6 × 53.98 × 0.84 mm
  - Materials & weight: 316L brushed stainless steel (~22 g) or polycarbonate (~5 g)
  - Custom print: UV print, 600 DPI, CMYK

## The ATS single-fee model (gas abstraction)

Key terms:
- **ATS** — the single fee token of the WATS ecosystem, used to pay for WATS actions on EVM networks.
- **ATS fee** — the fee charged for a WATS action (swap, transfer or staking) on an EVM network, denominated and paid in ATS instead of that chain's native gas token. It is not a discount: it tracks the live network cost.
- **Gas abstraction** — paying transaction fees in one token (ATS) instead of the chain's native gas token. In WATS this applies to actions on EVM networks across the extension and mobile app; Solana and TON transactions pay their own native fees (SOL / Toncoin).
- **ERC-4337** — the account-abstraction standard WATS uses on EVM chains so a paymaster can settle your fee in ATS instead of the chain's native gas token. ERC-4337 is EVM-only, which is why the single-ATS-fee model is scoped to EVM networks. Other ecosystems have their own sponsorship primitives — Solana lets a transaction name a fee payer other than the first signer, and TON's message model allows relayer or sponsoring contracts — but WATS does not use them for ATS fees: Solana and TON transactions in WATS pay their own native fees (SOL / Toncoin).
- **ATS balance on BSC** — where the fee balance lives. ATS is held on BSC (BNB Chain), and whichever EVM network a transaction runs on, the ATS fee is debited from that single balance: no bridging, and no separate ATS balance per chain. ATS is not an omnichain token and does not rely on LayerZero or the OFT standard.
- **ATS burn** — the deflationary mechanism by which ATS collected as fees is permanently burned, reducing total supply from 100,000,000 toward a 30,000,000 floor.
- **Card–device pairing** — the WATS NFC Metal Card security model: each card carries a unique ID and pairs with a single device in the WATS mobile app on first tap, working only with that paired phone as a tap-to-authenticate second factor (the card stores no private keys).

How an ATS fee works:
1. You initiate an action in WATS on an EVM network — a swap, transfer or staking operation.
2. WATS estimates the underlying network cost for that action on the relevant chain.
3. Instead of the chain's native gas token, the fee is denominated and charged in a single token, ATS: ERC-4337 account abstraction lets a paymaster settle the fee in ATS while the network still receives its native gas underneath. (The ATS itself is held on BSC (BNB Chain): whichever EVM network the transaction runs on, the fee is debited from that one balance, so you never bridge ATS or keep a per-chain ATS balance.)
4. The action is submitted and confirmed on-chain while you only ever managed one fee token.
5. The ATS collected as the fee is burned, permanently reducing total supply from 100,000,000 toward a 30,000,000 floor.

On Solana and TON this flow does not apply. Both are fully supported chains in WATS — send, receive, swap and bridge in the same app — but their transactions pay their own native fees: SOL on Solana, Toncoin on TON.

This makes WATS the first and only wallet to combine an ERC-4337 paymaster that charges every EVM transfer in one token — ATS, debited from a single balance on BSC instead of the chain's native gas — with a fee burn that drives supply from 100M to 30M. None of it changes custody: your keys stay with you, and WATS never holds a key.

Note: the Chrome extension and the mobile app are both pure self-custody and free to use, and they share the same fee model: on EVM networks every action is charged in the single ATS fee token instead of the chain's native gas, via an ERC-4337 paymaster. Solana and TON are fully supported but transactions there pay their own native fees (SOL / Toncoin).

## Key facts

- Non-custodial / self-custody: users control their own keys across all WATS products — WATS never holds a key.
- NFC card–device pairing: each card carries a unique ID and pairs with a single device in the WATS mobile app on first tap; it works only with that paired phone, as a physical tap-to-authenticate second factor.
- Cross-chain: send, receive, swap and bridge across major EVM chains plus Solana and TON from one interface.
- Single fee token (EVM networks): ATS unifies fees on EVM chains, charged instead of that chain's native gas via ERC-4337 (EVM paymaster) — example shown in-product: ~0.01–0.02 ATS per action. Solana and TON transactions pay their own native fees (SOL / Toncoin). The fee is debited from one ATS balance held on BSC (BNB Chain), whichever EVM network the transaction runs on.
- ATS tokenomics: ATS collected as fees is burned, reducing total supply from 100,000,000 toward a 30,000,000 floor. WATS is the first and only wallet to combine an ERC-4337 paymaster that charges every EVM action in one token — ATS, debited from a single balance on BSC instead of the chain's native gas — with this burn-to-30M model.
- NFC Metal Card is a tap-to-authenticate companion (NTAG 216 + AES-128), not a key-storage cold card — losing it does not move your funds; you keep using the app/extension and can order a replacement.
- Available in 12 languages: en, tr, es, fr, de, it, pt, ru, zh, ja, ko, ar.
- Operated by Alltoscan LLC, founded 2019.

## Frequently asked questions

**What is WATS Wallet?** WATS Wallet is a non-custodial, multi-product Web3 wallet available as a Chrome extension, mobile app and an NFC metal card.

**Is WATS Wallet free to use?** Yes — the Chrome extension and mobile app are both free to use. On EVM networks every action (swap, transfer or staking) is paid in a single fee token, ATS, instead of the chain's native gas, which covers the live network cost rather than acting as a discount. On Solana and TON — both fully supported — transactions pay their own native fees (SOL / Toncoin).

**Which chains does WATS Wallet support?** Major EVM chains plus Solana and TON, so you can send, receive, swap and bridge across all of them from a single interface.

**Is WATS Wallet custodial or non-custodial?** Non-custodial — you control your own keys across every WATS product, and WATS never holds a key.

**What is the ATS token used for?** On EVM networks, ATS is the single fee token: every action such as swaps, transfers and staking is paid in ATS instead of that chain's native gas token. Solana and TON are fully supported chains, but transactions there pay their own native fees (SOL / Toncoin). Your ATS balance itself sits on BSC (BNB Chain), and the fee is debited from that one balance whichever EVM network the transaction runs on.

**How does the WATS NFC Metal Card work?** It is a military-grade physical card with an embedded NTAG 216 chip carrying a unique ID. The first time you tap it to your phone in the WATS mobile app, the card pairs with that device — from then on it works only with that paired phone, as a tap-to-authenticate second factor for your WATS Wallet accounts.

**Who makes WATS Wallet?** WATS Wallet is built and operated by Alltoscan LLC, a company founded in 2019.

**Is WATS Wallet safe?** It is non-custodial, so you hold your own keys — WATS never holds a key. The NFC Metal Card uses an NTAG 216 chip with AES-128 encryption and pairs with a single device in the WATS mobile app, so it works only with that paired phone for tap-to-authenticate access.

**How much does the WATS NFC Metal Card cost?** It is sold through the WATS store at https://store.watswallet.com, where current pricing and material options — brushed stainless steel or polycarbonate — are listed.

**What happens if I lose my WATS NFC Metal Card?** The card authenticates access; it is not your only key, so losing it does not move your funds. Keep using the WATS mobile app or Chrome extension and order a replacement from the WATS store. See the WATS documentation for exact recovery steps.

**Can I use WATS Wallet on both my phone and my computer?** Yes. WATS is one identity across three products: a mobile app (iOS/Android), a Chrome extension for desktop browsers, and the NFC Metal Card — all tied to the same wallet.

**Do I need the ATS token to use WATS Wallet?** The Chrome extension and mobile app are both free to install and use. On EVM networks, ATS is the single fee token for actions such as swaps, transfers and staking, instead of that chain's native gas token; Solana and TON transactions pay their own native fees (SOL / Toncoin).

**What languages does WATS Wallet support?** 12 languages: English, Turkish, Spanish, French, German, Italian, Portuguese, Russian, Chinese, Japanese, Korean and Arabic.

**How do I download WATS Wallet?** Go to https://watswallet.com/download — it detects your device and sends you to the App Store, Google Play or the Chrome Web Store.

**What makes WATS Wallet different from other crypto wallets?** It combines three products under one identity — a Chrome extension, a mobile app with a single ATS fee token on EVM networks, and a military-grade NFC Metal Card — so you get browser, mobile, web and physical access from one self-custodial wallet.

## Blog & guides (watswallet.com/blog)

- [The best single fee-token wallets in 2026](https://watswallet.com/blog/best-single-fee-token-wallet) — guide, ~8 min. A practical guide to single fee-token (gas-abstraction) wallets: how paying all fees in one token works, how to evaluate them, and where the WATS ATS model fits.
- [Best Web3 wallets with an NFC metal card](https://watswallet.com/blog/best-web3-wallets-nfc-metal-card) — guide, ~9 min. The difference between key-storage cold cards and tap-to-authenticate companion cards, durability specs, and where WATS fits.
- [How the WATS ATS single fee token works](https://watswallet.com/blog/ats-fee-model-explained) — technical, ~7 min. A deep-dive into gas abstraction in WATS: how a fee is estimated and charged in one token (ATS) on EVM networks, why Solana and TON transactions pay their own native fees, and why none of it changes who holds your keys.
- [WATS NFC Metal Card security, explained](https://watswallet.com/blog/nfc-metal-card-security) — technical, ~8 min. The NTAG 216 + AES-128 chip and contactless handshake, ISO/IEC 14443, physical durability, one-device card pairing, and the card-loss scenario.
- [WATS Wallet vs Tangem](https://watswallet.com/blog/wats-vs-tangem) — comparison, ~6 min. WATS, a full multi-product non-custodial wallet spanning EVM, Solana and TON, versus Tangem's dedicated NFC cold card: custody, chains, fees and price.
- [WATS Wallet vs MetaMask](https://watswallet.com/blog/wats-vs-metamask) — comparison, ~6 min. Both non-custodial across EVM and Solana; WATS adds a single ATS fee token, TON and an NFC card, MetaMask adds native Bitcoin.
- [How to Set Up and Use Your WATS NFC Metal Card](https://watswallet.com/blog/how-to-set-up-nfc-metal-card) — guide, ~8 min. Step-by-step: order the card, pair it with the WATS mobile app, tap to authenticate, tap to sign, and what to do if you lose it. A tap-to-authenticate hardware companion, not key storage.
- [Hardware 2FA for Crypto: How a Tap Card Secures a Software Wallet](https://watswallet.com/blog/hardware-2fa-crypto-wallet) — technical, ~8 min. How a physical tap-to-authenticate card adds a hardware second factor on top of biometrics, how one-device pairing works, and why it is not cold storage.
- [NFC Tap Card vs Hardware Wallet: What's the Difference?](https://watswallet.com/blog/nfc-card-vs-hardware-wallet) — guide, ~8 min. Which device stores your keys and which does not — key-storage cold cards vs tap-to-authenticate companions, and where the WATS NFC Metal Card fits.
- [Why a Metal Crypto Card? Build, Durability and Materials](https://watswallet.com/blog/why-a-metal-crypto-card) — technical, ~7 min. The engineering behind the WATS NFC Metal Card: steel vs polycarbonate, IP68 and MIL-STD-810 durability, the NTAG 216 / AES-128 chip, and what a tough build does not change.
- [Best MetaMask Alternatives in 2026: Multi-Chain Self-Custody Wallets Compared](https://watswallet.com/blog/best-metamask-alternatives-2026) — comparison, ~9 min. Seven MetaMask alternatives ranked, led by WATS for one self-custody wallet spanning EVM, Solana and TON, with EVM network fees paid in a single token, then Rabby, Trust Wallet, OKX, Phantom, Coinbase Wallet and Ledger — matched to use cases by chain coverage, custody and hardware factor.
- [Best Phantom Wallet Alternatives in 2026: Multi-Chain Wallets Beyond Solana](https://watswallet.com/blog/best-phantom-wallet-alternatives-2026) — comparison, ~9 min. Led by WATS for one self-custody wallet across Solana, EVM and TON, with Backpack, Solflare, OKX, Trust Wallet and Exodus compared for deeper Solana or broad multichain coverage.
- [Best Trust Wallet Alternatives in 2026](https://watswallet.com/blog/best-trust-wallet-alternatives-2026) — comparison, ~9 min. Led by WATS, the only pick here pairing EVM, Solana and TON with an optional NFC tap-to-authenticate card, then MetaMask, OKX, Exodus, Rabby and Coinbase Wallet compared on chains, custody and physical security factor.
- [Best OKX Wallet Alternatives in 2026: Not Tied to an Exchange](https://watswallet.com/blog/best-okx-wallet-alternatives-2026) — comparison, ~9 min. Exchange-independent picks led by WATS, which spans EVM, Solana and TON with no exchange affiliation, then Trust Wallet, Rabby, Coinbase Wallet, Phantom and MetaMask — with OKX's chain count, native Bitcoin and exchange ties credited honestly.
- [Best Multi-Chain Crypto Wallets in 2026 (EVM, Solana and TON)](https://watswallet.com/blog/best-multi-chain-wallet-evm-solana-ton-2026) — comparison, ~9 min. Which wallets truly span EVM, Solana and TON in one app — led by WATS, then Phantom, MetaMask, Trust Wallet, OKX and Backpack/Rabby — by real chain breadth, custody and fee model (WATS has no native Bitcoin).
- [Best TON & Telegram Wallet Alternatives in 2026](https://watswallet.com/blog/best-ton-telegram-wallet-alternatives-2026) — comparison, ~9 min. Beyond the built-in Telegram wallet: led by WATS for holding TON in the same self-custody wallet as your EVM and Solana assets, with Tonkeeper, MyTonWallet and Tonhub compared for TON-native depth.
- [Best Crypto Wallets for Stablecoin Payments in 2026 (USDT & USDC)](https://watswallet.com/blog/best-wallet-for-stablecoin-payments) — comparison, ~8 min. Led by WATS, whose single-fee-token model changes which token pays gas on EVM chains (not a discount), then Trust Wallet, Coinbase Wallet, Phantom and Zengo for multi-chain USDT/USDC.
- [Can You Pay Gas Fees in Stablecoins Instead of ETH?](https://watswallet.com/blog/can-you-pay-gas-fees-with-usdt-usdc) — technical, ~8 min. By default gas is paid in each chain's native coin; paymasters and single-fee-token wallets (like the WATS ATS model) are the exception that changes which token pays, never the underlying cost.
- [Seedless, MPC, Passkey, NFC & Hardware Wallets: Security Models Compared (2026)](https://watswallet.com/blog/seedless-vs-nfc-vs-hardware-wallet-security-2026) — technical, ~9 min. A map of seed-phrase, MPC, passkey, hardware cold storage and NFC tap-to-authenticate models as combinable approaches, with the WATS NFC card placed as an authentication factor, not key storage.
- [Dual-Custody Wallet Explained: Custodial, Self-Custody, or Multisig?](https://watswallet.com/blog/always-on-dual-custody-wallet-explained) — technical, ~8 min. What always-on dual-custody is — a fixed two-of-two model where both your key and the provider's key sign every time — how it differs from custodial, self-custody and optional 2-of-3 multisig, and why WATS's own model (self-custody plus one-device NFC card pairing) is not dual custody.

## Download & install

- [Download / Install (auto-detects device)](https://watswallet.com/download): routes visitors to the App Store (iOS), Google Play (Android), or Chrome Web Store (desktop), with a QR fallback.

## Documentation & resources

- [Documentation (GitBook)](https://wats.gitbook.io/wats): installation, setup and developer guides.
- [Privacy Policy (PDF)](https://watswallet.com/docs/privacy-policy-2025-02-20.pdf): how WATS handles user data.
- [Terms of Service (PDF)](https://watswallet.com/docs/terms-of-service-2025-02-20.pdf): terms governing use of WATS Wallet.

## Company & social

- Company: Alltoscan LLC, founded 2019. Operates the WATS Wallet product line.
- Alternate names: WATS, WATS Crypto Wallet.
- X / Twitter: https://x.com/watswallet
- Official surfaces: https://watswallet.com, https://store.watswallet.com (NFC card store), https://wats.gitbook.io/wats (docs).