The Tools tab is easy to skim past on the way to the chapter guides, which is a shame, because its own tagline gets it right: these aren't just calculators, they're decision tools for what to study next.
NEET Weightage Analyzer — start your revision plan here, not in a chapter
This is the one tool worth opening before you decide what to revise this week. It's a bar chart of average marks per unit, ranked highest to lowest, with a switcher so you can flip between exams (the ranking for NEET isn't the same as the ranking for JEE Main, and both are worth checking if you're preparing for more than one). Click any bar and it takes you straight to that unit. If you only have an hour and you're deciding between two chapters, this chart — not a gut feeling — should make that call.
Mole Concept Calculator
A fast way to check stoichiometry and mole-ratio arithmetic without reaching for a separate calculator app mid-problem. Useful while you're working through numericals in physical chemistry, less useful as a revision tool on its own — this one is for the moment you're stuck on a number, not for a dedicated study session.
3D Molecule Viewer
Built for anything where a flat 2D structure genuinely hides what's going on — chirality, ring conformations, stereochemistry around a double bond. If a structure is confusing you on the page, this is where to go before assuming the guide's diagram is wrong; it's often the viewing angle, not the chemistry, that's the problem.
Flashcard Revision
A 200+ card deck pulled from across every chapter, separate from the flashcards attached to each individual unit. Good for a cumulative, cross-topic shuffle in the last weeks before an exam, when you want questions mixed across chapters instead of grouped by topic — grouped-by-topic revision is easier, which is exactly why mixed revision exposes what you'd otherwise mistake for mastery.
Structure Drawer & Naming Practice — coming soon
Not live yet, but worth knowing it's planned: IUPAC naming and structure-drawing practice, which is one of the few organic-chemistry skills that doesn't improve just from reading guides. Check back for this one.
Countdown Study Planner
A straightforward countdown to your exam date that's more useful than it sounds once you pair it with the Weightage Analyzer above: the planner tells you how many days are left, the analyzer tells you which units deserve the most of them.
None of these replace a chapter guide. What they do is sit on top of your guides and flashcards and answer a question the guides can't: not "what is this topic," but "what should I actually be doing with my limited time this week."