Launchmeter vs 蜘蛛查找

Launchmeter turns your iPhone into a performance meter. Find a safe, open space and measure your car's 0-60 mph time with one tap. ACCELERATION TIMING & SPLITS • 3-second countdown, then timing starts automatically when you pull away • Time several runs at once — 0-30, 0-60 and 0-100 mph — and set your own targets • Every split is compared with your personal best: green when faster, red when slower GPS + MOTION-SENSOR FUSION • Speed fuses GPS with your iPhone's accelerometer and gyroscope: accurate GPS gets more weight, the sensors fill the gaps between fixes • The launch moment is detected by the accelerometer, so the start isn't delayed by GPS updates • Hand shakes and road bumps are filtered out, so readings stay steady EVERYTHING AT A GLANCE • Big three-digit speed and a segmented speed bar • Friction circle for longitudinal and lateral G, plus a live G-force trace • Grade meter — tap to zero • Local temperature, humidity and pressure from Apple Weather, plus your iPhone's barometer RUNS & ROUTES SAVED • Speed and G-force traces, splits and route are saved on your iPhone for every run • Drag across the charts to replay any moment • Routes keep recording with the screen locked LAUNCHMETER PRO (OPTIONAL, ONE-TIME PURCHASE) • Weather-corrected times: air density, density altitude and SAE J1349 correction so runs compare fairly across seasons and altitude • Export CSV data and GPX tracks • Share cards with your splits and speed trace • Multiple cars: log and compare runs per car Everything else stays free forever. PRIVACY Your runs stay on your iPhone and are never uploaded. Location is only used to measure speed, record routes and look up local weather. SAFETY Only test on closed courses or where it's safe and legal. Obey traffic laws and never use your phone while driving. Continuous GPS use during a run increases battery drain. Results depend on GPS signal and phone mounting and are for reference.

蜘蛛查找是一款像素风 BLE 蓝牙设备雷达，让附近持续广播的蓝牙设备以图标形式显示在本地雷达地图上。 【主要功能】 • 10 秒扫描附近的 BLE 蓝牙设备 • 自动识别耳机、手环、手表、手机、电脑等常见设备类型 • 按信号强度展示估算距离和远近档位 • 查看设备名称、RSSI、估算距离和出现时间 • 支持手动扫描，以及用户主动开启的启动自动扫描 • 提供四张完全内置的本地卡通雷达背景 • 像素风界面、雷达动画和 8-bit 音效 【隐私】 蜘蛛查找无需注册账号，不包含广告或第三方统计。蓝牙扫描结果仅保存在当前运行内存中，不通过网络上传，也不用于精确定位。 【重要说明】 • 受系统限制，本应用主要发现正在广播的 BLE 设备；普通经典蓝牙设备可能不会出现在扫描结果中。 • 显示距离根据蓝牙信号强度估算，容易受到墙体、遮挡和设备功率影响。 • 蓝牙无法提供设备方向，地图方位仅为示意。