CalcEleMag

CalcEleMag is an iOS app for learning and practicing electromagnetism, emphasizing a closed-loop experience of "practice + feedback + review." The app features a built-in question bank and multiple quiz entry points, supporting random questions from the entire question bank, categorized topic-based quizzes, and review of incorrect answers, helping you quickly identify weaknesses within a limited time. During the quiz process, you can instantly view your correctness and explanations, reducing aimless practice and improving knowledge absorption efficiency. In addition to the quiz module, the app also provides formula library search, learning insights, a seven-day learning plan, and an achievement system: you can search for formulas by topic, view consecutive study days and incorrect answer distribution, complete stage tasks at a set pace, and maintain learning motivation through milestone incentives. For exam preparation scenarios, the app also features a practice mode and session reports, making it easy to summarize performance and track progress after each training session. All core data is saved locally by default, making it lightweight, quick to start, and available offline, suitable for daily fragmented learning. The interface uses a card-based and partitioned navigation, with clear operation paths and a low learning curve; it also supports continuously iterated visual themes and feedback entry points, allowing for ongoing optimization of the experience based on learning h