Mendeley
Zotero
Qiqqa
JabRef
Paperpile
Citavi
EndNote
Docear
Bread
Deferit
Openpay
I2c
Clearly Payments
Clearpay
Humm
QuickFee
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Deferit - Deferit is a billing and budgeting platform that allows you to pay bills in fortnightly installments and make your budget go the extra distance needed.
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.
Openpay - Openpay is a payment gateway solution.
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .
I2c - I2c is an open API card issuing, payment processing, and digital banking platform that allows you to create payment card programs and have flexibility in billing options.