Reviews for previous versions include: Better than my Chemistry teacher ***** by - Version 1.1 - Sep 30, 2012 The best chemistry app out there. I love that I don't need to have Internet connection to be able to view videos, unlike most of the more expensive ones. Thank you!!!! -- The app gives you 24 videos to help you with a first course in Chemistry. Videos are available offline so you can view on the bus with no problems. Handwritten notes and diagrams easily viewed onscreen. - each video covers a different topic - videos build on each other with more complicated subjects being covered later - notes provided so you can review how a problem was solved - notes available for printing via website - areas covered include: + introduction to periodic table + atoms + covalent bonding + naming chemical formulas + symbols for atoms + isotopes + hydrocarbons + ionic bonding and conductivity + properties of substances + balancing equations + group ions + acids and alkalis + neutralisation + relative atomic mass and the mole + mass of 1 mole + mass of many moles + moles and concentration + moles and equation questions 1 + moles and equation questions 2 All videos created by an experienced tutor. Feedback for other apps includes: "Awesome app, but could you include the entire table? Radicals? Acids? Keep developing!" "Indispensable for chemistry questions. *****"