数独城 vs SC Class Assistant

数独城是一款面向日常练习的数独。打开就能下，从入门到高难度都能找到适合自己的一局。 四种难度：简单、普通、困难、极难。逐步解锁，按自己的节奏变强。 三种开法： · 今日一局：每天一题，连续完成可累计天数 · 3 分钟一局：碎片时间也能打完 · 限时挑战：自选难度限时完成，越快得分越高 对局中可以笔记、撤销。每天有免费提示；不够时，可用数独币兑换更多提示。 下完的每一局都会留在游戏日历里。点开某一天，能看到局数、胜负、得分和当日评价。积分排行榜和成就用来对照自己的进度。 支持游客体验，也可用邮箱登录，换设备后保留账号进度。无广告。

SC Class Assistant Empower your teaching with the classroom management tool designed by an educator* for educators. Take attendance, track homework, and manage behavior with a single tap on your custom seating chart. Get started for free with support for up to 2 classes and 10 students per class. Upgrade via a lifetime purchase or annual subscription to unlock unlimited classes and students. • Effortless Roster Import Stop manual typing! Import your student list in seconds from any CSV (headers supported) or plain-text file. Compatible with exports from almost all major Student Information Systems. Detailed import templates and instructions available at: https://www.SCClassAssistant.com/support • Seating Chart-Based Tracking Manage your classroom visually. Record attendance, track homework, or conduct fire drill checks directly on your layout. Use Pinch-to-Zoom to see the whole room or Pinch-to-Adjust Text Size for perfect visibility. • Truly Fair Random Student Picker Boost engagement without the bias. Our algorithm ensures every present student is called on exactly once per cycle before anyone repeats. The picker Automatically Skips Absent students. • Dynamic Group Generator Create random groups instantly by group size or count. Fine-tune results with easy drag-and-drop and save multiple configurations for different activities. • Advanced Behavior Management Log participation or disruptions with a tap. Generate and print individual or multi-day summaries to share with parents or administration. • Fully Customizable Layouts Recreate your exact room. Add student photos, drag-and-drop seats, snap-to-grid, or hide empty desks. Supports landscape mode for a wider classroom view. • Teacher Tools Included Exam Grade Calculator: Quickly convert "number of incorrect answers" into percentages. Multi-Day Reporting: View and print attendance and behavior history. Privacy First: Your student data stays on your device: no cloud tracking, no data harvesting. Note: On macOS, pinch gestures require a trackpad. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ *"Designed by an educator" does not mean the developer is an educator, but the person who initially requested the App and specified what it should include was an educator. Subsequently, many online educators who use the App have requested (and received) feature updates.