Launchmeter vs 道路侠

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.

道路侠是一款AI驱动的交通违法举报助手，帮助市民快速识别和记录道路违法行为。 核心功能： • AI视频分析 - 上传行车记录仪视频，AI自动识别违法行为类型、时间和地点 • AI图片分析 - 上传现场照片，智能识别违法行为并生成描述 • 法规查询 - 内置常见交通违法法规条款，随时查阅 • 举报材料生成 - 一键生成规范的举报文字材料 • 举报指引 - 提供各地交警举报渠道和流程指引 特色亮点： • 采用通义千问大模型，识别准确率高 • 纯本地存储，保护用户隐私 • 操作简单，3步完成违法记录 • 支持视频和图片两种分析方式 免责声明：本APP仅提供AI辅助分析，不构成法律意见，一切处罚以官方为准。