1. Flashcard apps and Quizzlet
Save paper and the pain of trying to decipher your handwriting with a flashcard app. Look for a version like Flashcards+ (iOS), which lets you create your own cards or import existing sets through Quizlet, a brilliant community site for students to share study notes.
2. BBC Bitesize
BBC Bitesize breaks down subjects into handy smaller chunks (there’s a clue in the name here..) and lets you revise topics, watch video summaries, complete activities and test yourself as you go. The site covers subjects from Key Stage One to GCSE.
3. Revision planning apps
A big part of revision is getting organised and keeping track of your study. The Revision Ace app lets you make a revision plan, record your time spent on each subject and track your progress as you go. Alternatively, you can create a colourful PDF timetable with the help of getrevising.co.uk, which will even suggest a schedule for you to follow.
4. Khan Academy
Khan Academy is a not-for-profit learning tool that aims to provide a world-class education to anyone with Internet access. The site includes video tutorials and tests in Maths, Science, Economics, Computer Programming and History. The site keeps track of your progress and gives you awards for achievement. This is a great tool for getting to grips with the basics or taking on advanced study for extra credit.
5. Spark Notes
Explore English Literature texts, watch video summaries and study a host of other subjects with popular study notes site Spark Notes. Try out No Fear Shakespeare, which puts the original text side by side with a modern translation to help you pick up the story and translate new words as you go.
Revise GCSE and A-level subjects, test yourself, make a revision timetable for free and download apps from this comprehensive revision website.
7. BBC Brain Smart
Need a quick study break? Why not stay productive and wake up your brain by playing a game from BBC Brain Smart. There are fun games to help you boost your memory, remember chains of numbers, get motivated and manage stress. And all without feeling like you are doing any real work (we promise)...
As cited on - https://successatschool.org/advicedetails/161/Seven-of-the-Best-Free-Online-Revision-Tools#