LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
Agenda - A date-focused note taking app for both planning and documenting your projects.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Notepin - Extremely simple note-taking + blogging ✍️
WPS Office - Would you need Office Word, Excel or PowerPoint for Home, business or School? WPS.com would give you right version for you.
Bear - Bear.app is a note-taking and content writing app that helps you boost productivity with its intuitive tools.