Good research provides the backbone of any worthy paper or project. Whether you’re collaborating on peer-reviewed pages or exploring topics for self-enrichment, use these apps for research to make sure your facts are rock-solid.

Accelerate your research with access to millions of open-access papers and preprints. Get a personalized feed based on your topic interests, ranging from business and medicine to physics and social sciences. Or follow journals that cover specific subjects and build your own lists of articles. If you’re a student, check with your institution to see if you have access to content behind paywalls.

Whether you’re an academic or are doing research for your own knowledge, Academi.edu offers more than 40 million articles. Save the ones you’re interested in to your library for offline reading. Or upgrade to premium to download PDF packages that include five-minute summaries, full articles, and suggestions for related reading.

Select your focus areas to create a personalized feed. You’ll have access to 20,000 sources including top journals, preprints, blogs, and podcasts, and you can set up searches for specific keywords or authors. Translation tools help you understand articles in a different language, and there’s a Researcher Live feature for interactive discussions.

Learn about millions of topics on pages that a self-vetting community writes and edits. Research is constantly updated and backed up by links to reputable sources. Save articles to lists arranged by subject, and save content for offline reading. An Explore feed features articles related to popular topics and news, plus an On This Day section highlighting important historical events.