Peptide Library is a peptide research companion for iOS, Android and the web. Browse 200+ peptide research profiles, work out reconstitution and syringe units with the calculator, log doses and schedules in the tracker, keep track of vials and run-out dates in inventory, and compare vendors by price per mg. Free to use, with Pro from $4.99/month.

Browse high-contrast black and white baby cards for calm, supervised newborn visual play, focus practice, and tracking activities from 0-6 months.

Free AI diagram generator for STEM — turn text or a PDF into accurate, labeled science & math diagrams in seconds, then export a print-ready PNG.

CodeZym is a platform to practice company-wise Low Level Design (LLD) and DS & Algo interview round questions. It has interview round questions for all top tech companies like Google, Amazon, Uber, Microsoft and others. This makes it useful for final preparation when interviews are scheduled for a particular company.

LangPanda is a language learning platform built around immersion, helping learners acquire languages through YouTube, Netflix, movies, and other authentic content. With dual subtitles, one-click word translations, interactive sentence saving, and spaced repetition flashcards, it makes learning from real videos simple and effective. Progress syncs across web, Android, and iOS, and support for 36 languages makes LangPanda an excellent choice for beginners and advanced learners looking to improve vocabulary, listening, and real-world comprehension through engaging native content.

DemoBook is a catalog of real software demos cut into short, task-level clips. Watch the AI tools everyone's using actually work — by use case, product, or profession.