WhatsApp Business - Communicate more efficiently with your customers
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Interakt - Easily interact with every user of your app. Setup Your User Interaction Headquarter Today!
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
QuickSell - Create a beautiful catalogue, share it with your customers
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .