Study.com vs OpeningBook

Earn college credit on your phone—on your terms. Study.com College Saver delivers affordable, self-paced online courses you can complete anywhere, with open-book exams, quick grading, and guaranteed to transfer to Study.com’s partner universities. Choose the College Saver plan to save thousands on gen eds, or upgrade to the full College Saver Pro plan with a 220+ course catalog including upper division courses, AI tutoring, and coaching. Courses are recommended for credit by ACE and NCCRS and are accepted by 2,000+ colleges. Why choose Study.com College Saver for college transfer credit? - Take online courses for transferable college credit - Save big on tuition - Learn on your schedule with short video lessons and mobile offline access - Stress-free, open-book, unproctored exams - Progress faster with assignments — graded in two days - Send transcripts right from your account What you can do in the app: - Watch lessons, take quizzes and chapter tests, and track your progress - Pick up where you left off across multiple devices — desktop and mobile app Plans: - College Saver — 70+ general education courses. Enroll in up to 2 courses at a time. Lowest cost per course at a pace of four per month. - College Saver Pro — 220+ courses including upper division. Enroll in up to 3 courses at a time. Includes AI tutoring, free college coaching, and saved progress if you unenroll. How College Saver Pro gives you more value - Largest catalog with 220+ courses across lower and upper division - Accepted at 2,000+ colleges nationwide. - Self-paced, video-first learning designed for working adults - Unlimited courses and unlimited final exams per month (plan limits may apply) - Personalized tutoring anytime with StudyAI - Fast transcript delivery when you’re ready to transfer

OpeningBook is a clean, offline reference and trainer for chess openings. BROWSE EVERYTHING • Thousands of named openings and variations, organized by ECO volume (A–E), family, and line — sourced from the open Lichess openings database. • Step through any line move-by-move on a real, playable board. • Read key ideas and classic traps for the major openings. SEARCH & FILTER • Find any opening by name, ECO code, or move sequence. • Filter by line length with a simple move-count slider. TRAIN YOUR REPERTOIRE • Add lines to your training set as White or Black. • Drill them in a play-your-side-vs-app loop. • Spaced repetition brings each line back for review at the right time. 100% offline. No account, no ads, no tracking.