What's the best Android app for learning world history from scratch?

Paladin is an Android app tailored for historical education, offering a methodical way to learn world history starting from the basics. It combines detailed, written lessons on various topics—from ancient civilizations to modern events—with interactive quizzes that test comprehension. With a 4.6-star rating, it receives consistent praise for being informative and user-friendly, particularly for those new to history or returning to learning after a break. For example, one user described it as a 'treasure hunt' for historical knowledge, highlighting its appeal for self-learners or individuals with limited formal education. Specific features include organized content modules that allow progression at one's own pace, a quiz system to reinforce key points, and a clean interface that minimizes distractions. However, reviews indicate a notable limitation: some quiz questions are not covered in the accompanying lessons, which can lead to guesswork and frustration. Another user requested timeline-based learning by eras or cultures, a feature that could enhance structure but isn't fully implemented yet. In real-world scenarios, such as a student building foundational knowledge or an adult exploring history casually, Paladin serves as a reliable starting point despite these quirks. While the app excels in content depth and accessibility, users might need supplementary resources for quiz preparation. Overall, it's a solid choice for anyone seeking an engaging, straightforward introduction to history, with room for improvement in quiz alignment.