The hardest parts of UPSC,
made playable.
Cortex teaches climatology on living, pokeable maps and machines — and turns any essay topic into a mind-map you can actually think in. The abstract, finally hands-on.
Free to start · No card needed · Web & Android
Interactive course
Watch the monsoon happen.
From the first sunbeam to the Köppen map — every wind, cloud, cyclone and monsoon UPSC asks about, taught on living maps and machines you poke. Not walls of text.
- Cinematic, step-by-step lessons
- Real, pokeable climate simulations
- 100% of the GS-I climatology syllabus
Unit 3 · The monsoon engine
Why does India’s monsoon reverse between summer and winter?
Writing tool
Think in maps, not blank pages.
Type any essay or Mains topic. Cortex drafts an editable mind-map — intro, constitutional links, case studies, counter-views, a way forward — that you expand, rewrite and rearrange until the argument is yours.
- A complete first draft, fully editable
- Expand or rewrite any branch
- Built for Essay & Mains structure
Start with a single topic.
Free to begin — pick climatology or open a blank canvas, and see the difference in ten minutes.