Apps similar to Raxter include Zotero, which is open source with a free version. Other options are Mendeley, Research and SimpleFormat Pro. In total there are four Document Managers like Raxter for Mac, Windows, Linux, the web and Android.
Zotero is a free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage.
United States
Mendeley helps manage and share academic knowledge: Mendeley Desktop is free academic software (Windows, Mac, Linux) for organizing and sharing research papers and generating bibliographies with 1GB of free online storage to automatically back up and synchronize your library...
Netherlands
EU
The Research app is designed to streamline your workflow, offering a minimalist yet powerful platform for collecting, organizing, and analyzing research materials.
Compliance-focused formatting tool that automates academic and professional document preparation in Word, supporting APA, MLA, Chicago, Harvard, and other key styles with features like margin, spacing, heading, and reference formatting—eliminating manual effort.
Thailand
