Moloni is online invoicing and accounting software for businesses in Portugal, delivered as a web service. The vendor's site states that Moloni holds a certificate from the Portuguese tax authority and refers to encrypted connections and regular backups. The operating company is Moloni, Lda, a Portuguese limited company. The product is not presented as open source.
Moloni states on its site that it is part of the Visma Group. The Visma Group brings together a large number of companies that develop business software. The Visma Group is headquartered in Oslo, Norway. The site refers to the GDPR and to data subject rights and links to a privacy notice, but it does not name where its data centre is. For a European organisation, the company is registered in Portugal, while the owner chain and hosting location should be assessed before use.