1 ⚡ 效率工具 TechCrunch 2026-07-28 💬 This $9 key physically locks your most addictive apps 9美元物理钥匙，物理隔绝解锁手机成瘾困境，比竞品便宜数倍 This $9 NFC key requires you to physically scan it to unlock distracting apps on your phone. 物理钥匙 防沉迷 app锁定 数字健康 低成本解决方案