Birdchain is building a global decentralized SMS marketing platform using blockchain technology.

The company is working on a mobile application that will sell unused regular people’s SMSs to businesses. Anyone with a phone will be able to download the Birdchain app, allow to sell their unused SMSs to local businesses, and receive payment for every SMS message sent from their phone.

“A new blockchain adaptation will allow monthly passive earnings of US$30-300 for almost everybody,” Birdchain said.

Companies see a great value in SMS messaging to reach people. They are using SMS for direct marketing, password delivery, transactional notifications and even 2-way authentication.

“People do not send SMS anymore, everybody uses instant messaging apps. However, at the same time businesses pay top dollar for every single SMS message. We are developing a solution which will be useful for both parties. People will get paid for selling something they do not need while businesses will get better service and pay less,” Birdchain CEO Audrius Vrubliauskas said in a statement.

The Birdchain app will not only provide passive income to users but will also be an instant messaging app to talk to friends and relatives. The blockchain technology will make the process more secure and transparent.

Companies will have to provide their own contact list to set the campaign. The app won’t deliver an SMS to the app user’s contact list and will temporarily block incoming SMSs and calls from the users which will have received transactional messages from them. The messages will be sold automatically in the background of the app and the earnings will be transferred to the wallet inside the app.

The estimated global application-to-person SMS market value in 2015 was $56 billion. It is expected to rocket up to $84 billion by 2024, according to Birdchain.

Birdchain plans to launch an initial coin offering in the late autumn to raise the money for the development of the app.