
Qiqqa
Mendeley
Zotero
JabRef
Citavi
Docear
Paperpile
Papers
Bread
Deferit
Openpay
I2c
Clearly Payments
Clearpay
Humm
QuickFee
Qiqqa is recommended for academic researchers, graduate students, and professionals who deal with large volumes of research papers and need an efficient system for organizing and referencing their materials. It is particularly beneficial for those in fields that require extensive literature reviews and citation management.
Qiqqa is by far the strongest solution for research and managing pdf's. Zotero, named as a comparison is weak as it does not allow pdf;s to be loaded into its interface - you need to use a pdf reader, which defeats its whole purpose. With Qiqqa documents in a library can be searched together. It has excellent maps of your libraries. It is not prefect, having a few glitches, but still is the only one of its kind.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
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.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
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.