Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

ColdKeys Screenshots

iPad

iPhone

About ColdKeys

ColdKeys has one job: create and import cold storage wallets for you.

It works 100% with no internet and can be used airgapped.

All you need to do is write down your 12 or 24 word phrase and then you can use the app to receive bitcoin to your watch-only wallet for cold storage.

If you enable "Watch-Only" in settings it will remember the first 100 addresses that your seed can create. That way when you tap the "Watch-Only Wallet" it will show you the first address and give you the balance as well change colours to communicate whether the address has transaction history or not. It will turn red if the address has been used and green if it has not been used. This assists you to only use addresses once for privacy reasons. You can tap the + or - button to show the next address. This all happens in a pre determined order and will never change.

The app only allows the industry standard BIP44 or BIP84 derivation scheme which is compatible with the majority of hardware wallets and apps. It also utilises BIP39 pass-phrases but that can be switched off in settings.

If one day you want to spend from your cold storage you would need to sweep the private key that is associated with that address which can be done in a number of apps. We recommend "Fully Noded" app for that.

ColdKeys is 100% open sourced and designed to be as simple as possible, the code is readable even to non technical individuals.

https://github.com/FontaineDenton/DiceKeys

What's New in the Latest Version 1.7

Last updated on May 23, 2019

Old Versions

-Now add multiple cold storage wallets. Turn on "Watch-Only" in settings and ColdKeys will remember whichever wallet you create or import and it is accessible by tapping the eye button. Swipe the wallet left to give it a label. Tap the wallet to see each address as an invoice. The address will display the balance and turn red if its been used before or green if it has no history.

Version History

1.7

May 23, 2019

1.6

Mar 22, 2019

- Fixes a bug that caused labels to overlap on smaller devices like iPhone SE
- Now supports checking balances for bech32 addresses in the watch only wallet

1.5

Mar 21, 2019

-Watch only wallet capability added

1.4

Mar 20, 2019

-Now choose how you want to create your keys from the home screen.
-Go to settings to add bip39 passphrase.
-Updated user interface.

1.3

Mar 13, 2019

-Now fully compatible with Electrum, Coldcard Wallet, Bitcoin core
-Create brain wallets
-Full native segwit compatibility

1.2

Mar 11, 2019

-Improved user interface.
-Tap QR code to save or share.
-Tap text to copy, save, share.
-Add ability to increase and decrease the index of addresses, private keys and public keys.
-Add brain wallet capability.
-Improve efficiency of key creation.

1.1

Feb 16, 2019

-Add ability to create keys with or without dice rolls. You can input as many dice rolls as you like and then tap the "Get Now" button to use Apples secure number generator in conjunction with the dice rolls to create entropy for your keys.

1.0

Feb 12, 2019

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