37coins
37coins is a Bitcoin wallet provider headquartered in Sunnyvale, California that launched on December 31, 2013. The company CREATES Bitcoin technologies for emerging markets such as the Philippines and Singapore, where access to smartphone and desktop PC apps is limited.
Users of 37coins can send and receive bitcoins to their bitcoin wallets, called SMSwallets. The SMSwallets are controlled by SMS/text commands sent from simple feature phones, such as a Nokia 100. Using the system, bitcoins can be sent and received from any bitcoin wallets.
37coins SMSwallet Commands
Users can control their SMSwallets with the following commands:
ADDR |
Get bitcoin deposit address, to deposit bitcoins into the user's SMSwallet |
PIN |
Setup secret Security PIN, for large volume transactions |
BAL |
Get the balance of the user's SMSwallet, in mBTC |
SEND |
Send bitcoins to a phone number, or bitcoin address |
TRANS |
List the last 3 transactions |
HELP |
List the available commands |
SMSgateway
In addition to SMSwallets, 37coins has developed an SMS gateway system, called SMSgateway. It is an android application that runs on Android phones and connect a country's local SMS network to the internet. By relaying messages between the SMSwallets and the 37coins server, gateway operators earn a small commission from each transaction that is passed through their gateway. Currently there are gateways in over 18 countries.
In May 2014, 37coins announced a partnership with Singapore-based payment processor CoinPip to bring SMS based bitcoin payments to Singapore.