BB84 Wallet

Self-Custodial Crypto Wallet

Free · Designed for iPad. Not verified for macOS.

BB84 Wallet is a self-custodial crypto wallet for the BB84 network, a Layer-2 rollup on Ethereum mainnet. FEATURES • Self-custodial: your keys are generated and stored only on your device; we never have access to them. • Bridge: move ETH, USDC and EURC between Ethereum (L1) and the BB84 network (L2). • Privacy: hash-based one-time addresses (OTAs) instead of reused addresses. • Payments: usernames instead of long addresses, QR codes, recurring payments, merchant payments. • Post-quantum design: transactions are authorized with hash commitments instead of ECDSA signatures. IMPORTANT Balances in this app have real monetary value. Crypto transactions are irreversible. Without a backup your funds are permanently lost if you lose your device. Withdrawals back to Ethereum take 7 days for security reasons. BB84 is new technology; only use amounts you can afford to lose. Terms of Service: https://bb84.com/terms Privacy Policy: https://bb84.com/privacy

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• Encrypted wallet backup (.bb84) with automatic iCloud backup • Guided app tour • Incoming USDC/EURC payments in history and as push notification • Withdrawal status card and notifications • Refreshed app icon and header logo • Payment links: bb84.com/pay links open the app with recipient and amount filled in • Bug fixes and improvements

Version 1.0.3

The developer, HADAMARD CORPORATION, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • User Content
    • Identifiers
    • Usage Data
    • Diagnostics
    • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
HADAMARD CORPORATION
Size
42.1 MB
Category
Finance
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • iPad
    Requires iPadOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
Copyright
© 2026 Hadamard Corporation
  • Developer Website
  • Privacy Policy

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