Small tools, built to make the reading useful.
Every STCY app lives on its own subdomain and does exactly one thing well — none of them are trying to become the next big platform.
Tip of the Day
A rotating archive of every World Tip STCY has ever published. One fresh tip surfaces each day, with a one-tap save and share. Built for people who want the habit of learning something small, daily, without opening the full library.
tips.stcy.comBook Notes Search
Every Book Breakdown's takeaways, indexed and searchable in one place — a personal knowledge engine over STCY's own archive. Type a feeling ("can't focus") and get the relevant decoded lessons, not a wall of book titles.
notes.stcy.comHabit Tracker
Turn any article's bolded Takeaway line into a trackable daily habit with one click. Closes the loop between reading an idea and actually doing it — the part most knowledge sites skip entirely.
habits.stcy.comNaval Principles Tracker
A five-part daily practice built from The Almanack of Naval Ravikant — habits, a decision journal, a specific-knowledge log, a leverage checklist, and a happiness check-in, all in one place.
naval.stcy.comHow the apps work together
Each app shares the same logo, color system, and a thin top bar linking back to the main library — so jumping between stcy.com and any subdomain feels like staying inside the same publication, not leaving it for a different product.
None of the apps require an account to try. They exist to make the content more useful, not to become separate businesses — if an idea grows past "small companion tool," it gets spun out and rebuilt properly rather than bolted onto this family.