长安HUD vs RTK Helper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
长安HUD
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通过蓝牙连接HUD模块，手机导航时HUD可以显示转向等提示信息。 【注意/Attention】 1.在后台持续使用GPS会明显缩短电池的续航时间。 Continued use of GPS running in the background can dramatically decrease battery life.
RTK Helper
This professional tool provides centimeter-level positioning accuracy for users requiring precise location data. It connects to RTK/GNSS receivers, offers NTRIP client functionality for real-time corrections, and displays detailed positioning information. Features include interest point and track recording, GPX export, and measurement tools.
- Bluetooth RTK/GNSS receiver connection
- NTRIP client for differential correction data
- Real-time positioning and accuracy display
- Interest point and track recording
- GPX export for compatibility
- Distance and area measurement tools
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RTK Helper 是一款专业的高精度定位辅助工具，专为需要厘米级定位精度的专业用户设计。 核心功能 • 蓝牙连接 - 轻松连接各类RTK/GNSS接收机设备 • NTRIP客户端 - 内置NTRIP协议支持，实时获取差分改正数据 • 实时定位 - 显示经纬度、海拔、卫星数量、RTK状态等信息 • 精度指示 - 实时显示HDOP值和估算精度（米级） • 卫星信息 - 星空图和信号强度可视化显示 记录功能 • 兴趣点记录 - 一键保存当前位置坐标 • 轨迹记录 - 记录移动轨迹，支持RTK质量状态分段显示 • GPX导出 - 标准GPX格式导出，兼容Google Earth等软件 • 地图显示 - 实时查看位置和历史记录 实用工具 • 测距功能 - 测量两点间距离 • 面积计算 - 多边形面积测量 • 屏幕常亮 - 户外作业时保持屏幕不熄灭 • 预设管理 - 保存多组NTRIP服务器配置 适用场景 • 测量测绘 • 精准农业 • 无人机航测 • GIS数据采集 • 地质勘探 • 工程放样 技术说明 本应用需配合支持蓝牙SPP协议的RTK/GNSS接收机使用，并需要有效的NTRIP服务账号才能获取差分数据实现高精度定位。支持解析NMEA-0183协议（GGA、GSV等语句），兼容主流RTK设备。
Screenshots
Verdict
The clearest difference is price: 长安HUD at Free against RTK Helper's $0.99. 长安HUD also leads on iOS requirement (12.0 vs 17.6). RTK Helper's advantage is update cadence (every 3 days vs every 3 weeks). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
长安HUD is free to download; RTK Helper costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
长安HUD ships an update every 3 weeks, RTK Helper every 3 days. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.
| Parameter | 长安HUD | RTK Helper |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 113 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Chongqing Pengri Science and Technology Development Co,Ltd. | 亦隆 朱 |
In-app purchases
长安HUD
No in-app purchases
RTK Helper
No in-app purchases
