Cypher Box

Cypher Box

by Cypher Box LLC

1 ratings
Free

Rating summary
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0
0
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Details

  • Released
  • Updated
  • March 24, 2026
  • September 12, 2026

Features

Cypher Box screenshot #1 for iPhone
Cypher Box screenshot #2 for iPhone
Cypher Box screenshot #3 for iPhone
Cypher Box screenshot #4 for iPhone
Cypher Box screenshot #5 for iPhone
Cypher Box screenshot #6 for iPhone
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About

This open-source Bitcoin wallet offers a progressive framework for users to manage their cryptocurrency, balancing security, fees, and user experience. It guides users through four difficulty levels, from beginner-friendly Lightning Network transactions to advanced self-custodial hot and cold storage vaults.

✓Progressive self-custody levels
✓Lightning Network integration
✓Hot and Cold storage vaults
✓12-word backup for hot vault
✓Hardware wallet connectivity for cold vault
✓Interactive balance visualization
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What's New in Cypher Box

0.1.10

September 12, 2026

Bark Vault: Emergency Exit, rebuilt: - Only exits what is worth exiting. Lightning capsules (VTXOs) that would cost more to rescue than they hold are named and left out instead of quietly draining your fees - Won't exit lightning capsules with under 4 days left, and tells you to refresh them first - You can override and exit anyway, with the loss shown up front - Fund the exit fee reserve from CoinOS wallet - One reminder when your exit is ready to finish, so you are not left guessing when to open the app - Uses far less data while waiting. A 24 hour wait went from roughly 14,400 network requests to about 260 Exit accuracy: - Shows what an exit will actually spend, separately from the reserve you need on hand. One - No longer charges you more than once for costs that several capsules share - Sets the collection fee itself rather than bidding for speed - Never starts a refresh while an emergency exit is running - The exit stays reachable when a data provider fails More reliable connections: - Four Bitcoin data sources instead of two, chosen so one operator's outage cannot take out two in a row - Being rate limited now says so, instead of reporting corrupted data - Providers that fail are routed around, for longer when they hit a quota than when they were briefly unreachable - What one part of the app learns about a failing provider is shared with the rest, so the same limit is not hit twice Hot/Cold Vaults: - Bug fixed: Selecting a small capsule could previously spend the same inserted amount but from a bigger capsule - Bug fixed: Choose which address the Vault tab shows - Recovery works whether or not your vault uses a passphrase Strike: - Buy button: An affordable capsule goes straight to confirmation Coinos: Bug fixed: An on-chain withdrawal can no longer be sent twice

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FAQ

What is Cypher Box?

Cypher Box is an open-source Bitcoin wallet designed to help users achieve self-custody of their funds. It offers a progressive framework with four difficulty levels, starting from beginner-friendly Lightning Network transactions and progressing to advanced hot and cold storage vaults.

Is Cypher Box secure?

Cypher Box prioritizes security with features like private keys never leaving the device, SegWit-first implementation, and BIP39 support. For enhanced security, it allows connection to hardware devices for cold storage vaults.

Can I use Cypher Box for large amounts of Bitcoin?

Yes, Cypher Box supports progressively larger amounts of Bitcoin as you advance through its levels. Level 2 allows for sizeable amounts in a self-custodial hot savings vault, and Level 3 enables deposits and withdrawals of large amounts using a hardware cold wallet.

Does Cypher Box custody my funds?

No, Cypher Box explicitly states that it does NOT custody user funds. The app is designed for self-custody, meaning you retain full control over your private keys and Bitcoin.

What devices does Cypher Box support?

Cypher Box is currently supported on iPhone and iPod devices.

How often is Cypher Box updated?

The latest version of Cypher Box is 0.9, which was last updated on April 24, 2026. This indicates a recent update, suggesting active development.

What is the age rating for Cypher Box?

Cypher Box has an age rating of 4+, making it suitable for a wide range of users.

What are the transaction fees like with Cypher Box?

For Lightning Network transactions (Level 1), Cypher Box offers near-zero fees. For main Bitcoin Network transactions, users can assign a threshold for withdrawals to balance Bitcoin Network fees and counter-party risk.