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AirGap is a crypto wallet system that lets you secure cypto assets with one secret on an offline device. The AirGap Vault application is installed on a dedicated device that has no connection to any network, thus it is air gapped. The AirGap Wallet is installed on your everyday smartphone. Protect your crypto and store your private keys offline. It’s time to set up your safe place for your coins and get rewards. Based on a two-device approach, increasing security and usability with you in...

...It works with major hardware wallets and hardware signers including Coldcard, BitBox02, Trezor, Ledger, Jade, Keystone, Passport, SeedSigner and others via USB, QR codes and SD cards. Bitcoin Safe supports PSBTs, coin control, BIP329 labels, RBF and CPFP, transaction flow diagrams, PDF descriptor backups, encrypted wallet data, and private syncing with Compact Block Filters. Optional Electrum and Esplora servers are supported. Available for Windows, macOS and Linux. Bitcoin Safe is free and open-source software licensed under GPLv3.

...The compiled application is available in BurnerWallet.zip. You can store any amount of crypto, but treat it like cash: convenient for daily payments, less secure for large holdings. Use QR codes to send/receive funds, create payment links, swap between ETH/DAI/xDai, and even chat peer-to-peer with encryption. Keys live in browser storage and app and disappear when you close the tab - perfect for events, food trucks, or instant dApp onboarding. Sweep funds to cold storage when you're done.