Rookhouse

A small software studio in Pennsylvania. It makes its own products and builds for the businesses around it.

Made here

ChapterPrep

Practice for FBLA, DECA, HOSA, FFA and FCCLA competitions: a test for every event, a practice judge for role plays and presentations, and a live mock competition a whole chapter can run together.

Free, with 400+ users · chapterprep.com

Lark

A guitar tutor that listens. Tune up, learn your chords and play along with 80 songs timed to the record, with feedback on what you actually played.

Free · lark.coach

Corvo

Portfolio analytics for people who invest on their own: Sharpe ratio, Monte Carlo simulations, a health score and plain-English insights on what you hold.

Free · corvo.capital

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