Send and receive Bitcoin as easy
as sending a text message

The easiest way to send and receive Bitcoin.
Native and exclusive to DropBit™



READ MORE
Coinninja Logo
Coinninja Logo

How DropBit Works

STEP ONE


Bob wants to sends Mary .5 BTC. She doesn’t have a bitcoin address or wallet yet, but he has her phone number in her contact list. He selects her from the DropBit App and sends a DropBit of .5 BTC to her. The Bitcoin address request is saved on our server.


STEP TWO


A text message is sent to Mary that says she has 
.5 Bitcoin waiting for her from Bob’s phone number. She has 24 hours to install the DropBit app and verify her phone number.


STEP THREE


Mary receives Bob’s request for a Bitcoin address from the server and fulfills the request by sending a Bitcoin address from her wallet up to complete Bob’s request.


STEP FOUR


Bob gets a message that Mary is setup to receive Bitcoin and has an address waiting for his .5 BTC request. Bob opens up his DropBit app and the transaction is sent directly from his wallet to her wallet.

DropBit to Existing
App Users


STEP ONE


When verifying your phone number, a small reserve of Bitcoin receive addresses will be put on the server and associated with your phone number hash.



STEP TWO


When another existing user attempts to send Bitcoin to your phone number, that phone number is hashed and one of the associated receive addresses is instantly delivered to the sender.



STEP THREE


A normal Bitcoin transaction can now be sent using the requested address.



Privacy, Security + Ownership



The DropBit wallet is a safe and secure Bitcoin wallet and CoinNinja as a company puts heightened emphasis on transactional privacy and security.

Non-custodial Wallet


Private keys never leave the DropBit app. The keys for your wallet are owned, kept and controlled entirely by YOU. Bitcoins are never in our possession. DropBit only deals with sending and receiving addresses.


Security of Addresses


Every server request for sending addresses (and everything else) is signed by the user’s wallet at a derivative path not related to your Bitcoin addresses. We validate this signature with the public key that is associated with the phone number during verification.


Your Phone Contacts


We do not store any of your contacts on our server. Instead, during the phone number verification process, DropBit sends us a cryptographic hash of your phone number. This hash is used for contact discovery. When a DropBit user attempts to send via phone number, that number is also hashed and our server will inform the app if the recipient 
is a DropBit user. Thus, your contacts remain safely on your phone and our servers never see contact details 
unless an invitation via SMS is required.


*To unlock all DropBit features and functionality, users must verify their phone number and confirm they have backed up the recovery words provided during the wallet setup.