Launchmeter vs 测速仪

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.

测速仪-实时仪表盘测速，适用于各种出行方式 这是一款可靠的出行伴侣，适用于驾驶者、高铁,摩托车手、骑行者以及所有希望实时掌握速度和路线的用户。应用通过高精度 GPS 导航，实时显示您的行程数据。 功能亮点 GPS 速度仪
实时查看当前速度和其他关键参数
支持多种计量单位：公里每小时，英里每小时，节 地图
在内置地图上追踪您的位置、路线和行驶方向 详细行程记录
每段行程自动记录以下内容
行程开始和结束时间
总行驶距离
地图上完整显示路线
最高速度与平均速度
行程总时长及实际驾驶时间
最高海拔与最低海拔 限速提醒
可自定义限速值，超速时自动提醒 HUD 抬头显示模式
夜间可将关键信息投射到挡风玻璃上，提高驾驶安全性 温馨提示
请确保设备固定牢靠，以防在驾驶或紧急刹车时损坏
持续使用 GPS 可能会加快电池消耗，建议连接电源或携带移动电源
使用前请授予位置权限，以获得最佳定位精度 一. 付款: 用户通过 iTunes 账户扣款, 用户确认购买后即付款. 二. 续订: 用户 iTunes 账户在到期前的二十四小时内扣费, 增加相应的订阅周期. 三. 取消续订: 如需取消续订, 进入"iTunes Store 与 App Store" —> 点击 "App ID", 进入 "账户设置" 页面, 点击 "订阅", 选择取消订阅即可. 四. 隐私协议: https://www.kdocs.cn/l/cvEIpk1w6DyY 五.使用条款: https://www.kdocs.cn/l/cdVehCOGDQGa