N vs 闪电单词

A daily training app based on the N-Back task, widely used in cognitive psychology research. Challenge your working memory with just 5 minutes a day. ◆ 3 TRAINING MODES • Single — Position: Memorize lit positions on a 3×3 grid • Single — Audio: Remember spoken letters via text-to-speech • Dual — Position + Audio: Train both at the same time for the ultimate challenge ◆ TRACK YOUR GROWTH • Accuracy trend chart and session history • Highest N-level reached • Streak counter to build a daily habit • iCloud sync keeps your training data on every device ◆ COMPETE & ACHIEVE • Game Center leaderboards: accuracy, max N-level, streak • 8 achievements from your first session to 30-day streaks ◆ DESIGNED FOR FOCUS • Zero ads during training — your concentration comes first • Clean, minimal interface inspired by fitness tracking tools ◆ SIMPLE PRICING • Free to use with occasional ads (never during training) • Optional Premium subscription removes all ads. Every training feature stays free ◆ ADJUSTABLE DIFFICULTY • N-1 to N-9: start easy and progress at your own pace • Suitable for students, professionals, and anyone looking to challenge their cognitive abilities Note: This app is a cognitive training tool based on the N-Back task used in research. It is not a medical device and does not diagnose, treat, or prevent any condition. Improvement in cognitive function is not guaranteed. Premium is an auto-renewing monthly subscription. Payment is charged to your Apple Account, and the subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel it anytime in your Apple Account settings. Terms of Use: https://fukuidinotech.github.io/nback-training-site/terms.html Privacy Policy: https://fukuidinotech.github.io/nback-training-site/privacy.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

闪电单词是一款纯粹的离线背单词工具。没有广告、没有订阅、不收集任何数据——一次买断，安心使用。 【为什么选闪电单词】 • 100% 离线——没网也能背，数据只存在你的设备上 • 零广告、零订阅——一次购买，永久使用，再无套路 • 隐私优先——无需登录，不收集任何个人信息 【核心功能】 • 闪卡速记——滑动卡片，右滑认识／左滑不认识／下滑太简单，手感顺滑 • 科学复习——内置 SuperMemo-2 间隔重复，在最该复习的时刻提醒你 • 真实发音——每个单词配美式发音，点一下即听 • 丰富词库——四级／六级／考研／雅思／托福／GMAT 多本词书 • 自定义导入——支持 PDF／TXT／Word，把你要背的词变成卡片 • 学习统计——连续打卡、每日目标、热力日历，看得见的进步 • 深色模式——浅色／深色／跟随系统 【适合谁】 备考四六级、考研、出国考试，或任何想安静背单词、不被广告和订阅打扰的人。 下载即用，立刻开始你的第一组单词。