The app will monitor customers’ transactions, round them up to the nearest pound and donate the difference to a charity of the user’s choice.
Sustainably is taking part in the Entrepreneurial Spark accelerator programme and has entered the Virgin Media Business Voom competition to pitch for funding and advice from Sir Richard Branson.
In April, Sustainably won the Edinburgh Finance Hackathon held at accountancy firm Deloitte’s offices, which was organised by Edinburgh-based app developer The Infinite Kind.
Loral, who was previously head of digital strategy and insight at Aberdeen Asset Management, said: “We are bringing the convenience of mobile and cashless transactions together to create a conscious living and giving ecosystem where everyone from individuals to big brands can all get involved in supporting good causes.
“It’s about solving the world’s problems, bringing communities together and making people feel good about what they’re doing in the process.
“We’re retailer agnostic, so you donate no matter where you buy, as long as you have added your cards to our app, as we recognise each card transaction.”