Commerce · alternatives · 2026
24 alternatives to Frozen Security
The core problem I kept running into with hardware wallets: the private key exists as a persistent digital object inside a chip. It’s protected — but it exists. That’s the vulnerability. Protection fails; existence is structural. I built a different model. The private key is encoded as a geometric hole pattern in a titanium plate. A signing terminal reads the plate optically, derives the key transiently in volatile memory, signs the transaction, and discards everything. The plate doesn’t change. Nothing is stored. A few implementation details that might interest people here: The signing…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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The Bitcoin Note: Physical secure Bitcoin that you can easily share, spend or hold.
2022 · offline.cash · its alternatives →
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Ledger Nano S▲340A secure Bitcoin and Ethereum hardware wallet
2016 · shop.ledger.com · its alternatives →
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Lock▲61Protocol for safely storing and distributing Etheruem assets
2019 · lock.finance · its alternatives →
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BlueWallet▲97An easy to use and secure Bitcoin wallet for iOS
2018 · bluewallet.io · its alternatives →
- 9SV
2022 · docs.planet.ink · its alternatives →
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So the main purpose here is to show _a_ way that session-token theft can be mitigated. Clearly, this isn't NSA proof or something you'd use to secure a BL5 containment facility, but to prevent session-jacking; if feels like it could help a lot, and would be pretty quick and easy to roll out if an IDP wanted to implement it.
2024 · github.com · its alternatives →
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Digital Bitbox▲103A minimalist and secure Bitcoin hardware wallet
2017 · bitbox.swiss · its alternatives →
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Crypntox Card▲103User friendly Cryptnox hardware wallet and mobile app
2024 · cryptnox.com · its alternatives →
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Neptune is a quantum-safe layer 1 blockchain combining zk-STARKs and PoW consensus. Private by default, programmable, and built for global scale
2014 · neptune.io · its alternatives →
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Memorize your seed phrase while having fun
2023 · brainwallet.co · its alternatives →
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Squarelink▲77Sign blockchain transactions with just an email and password
2018 · squarelink.com · its alternatives →
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Simple and secure wallet for Ethereum & ERC20 tokens
2018 · conicoin.io · its alternatives →
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Keeper is an embeddable secret store (Argon2id, XChaCha20-Poly1305 by default). Four security levels, audit chains, crash-safe rotation. Vault is overkill for most use cases. This is for when you ge paranoid about env and need encrypted local storage that doesn't suck. No security through obscurity, hence, It's still early, so now's the best time to find weird edge cases, race conditions, memory leaks, crypto misuse, anything that breaks. The README has a full security model breakdown if you want to get adversarial.
Apr 2026 · github.com · its alternatives →
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Free & OpenSource software for managing cold storage wallets
Apr 2026 · bitcoin-safe.org · its alternatives →
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Stay up to date with Coinkite — COLDCARD, Opendime, Tapsigner, Blockclock. Firmware releases, security research, and Bitcoin cold storage.
2014 · blog.coinkite.com · its alternatives →
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Blockchain is a wonderful record keeper that can track every transaction that happens in the string.
2014 · blocksignit.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →