Neutron Guard vs SurfCash

Neutron Guard is a secure mobile app designed for signing Partially Signed Bitcoin Transactions (PSBTs) using QR codes. FEATURES: • Hardware-backed key storage with biometric authentication • QR code-based transaction signing for air-gapped security • Multisig support following BIP-174 PSBT standards • BIP-39 mnemonic seed generation and backup • Multi-language support • Dark/Light theme support • Advanced security features with auto-lock SECURITY FIRST: Neutron Guard prioritizes security above all else. Your private keys never leave your device and are stored in hardware-backed secure storage when available. Biometric authentication ensures only you can access your funds. MULTISIG READY: Built for multisig workflows, Neutron Guard can participate as a cosigner in complex Bitcoin transactions while maintaining the highest security standards. OPEN SOURCE: Neutron Guard is open source and auditable, ensuring transparency and trust in your Bitcoin security solution.

SurfCash — Spend, Send, Earn & Travel with Crypto The easiest way to put your crypto to work — pay anywhere, earn yield, borrow cash, and stay connected abroad with crypto-powered eSIMs. STAY CONNECTED ANYWHERE Buy eSIMs for 190+ countries with crypto. Install in seconds, activate on arrival, skip roaming fees. EARN ON YOUR STABLECOINS Grow idle crypto with transparent on-chain yield. Choose from earning options including USD* Protected and Breeze — no lockups, no banks. BORROW AGAINST YOUR CRYPTO Need cash without selling? Use your crypto as collateral and unlock instant liquidity inside the app. SPEND & CONVERT Convert USDC to local currency in seconds. Pay via VietQR, PromptPay, PIX, and more across Asia and Latin America. SEND & SWAP Send crypto to friends by username or QR code. Swap between USDC, SOL, SURF, and more in a few taps. STAKE & EARN REWARDS Stake SURF to earn weekly rewards, delivered as scratch cards you reveal to claim. NON-CUSTODIAL & SECURE Your keys, your crypto. Funds are secured on your device — we never have access. PASSPORT Find crypto-friendly restaurants, cafes, and shops near you on the interactive map. EVERYTHING IN ONE APP: • eSIMs in 190+ countries • Earn yield with USD* Protected & Breeze • Borrow against your crypto • USDC to local currency conversion • Non-custodial wallet • Send by username, pay by QR • Token swaps (USDC, SOL, SURF + more) • SURF staking with scratch card rewards • Referral rewards • Apple Sign In support SurfCash is not a bank. We're a bridge between crypto and everyday life — spend, earn, borrow, or travel, all from one app.