What is the Navier HUD 3 application, how does it work?

According to the introduction of Whilerain Studio, Navier HUD 3 is a Maps & Navigation app on the Android platform. There is currently a 3.4.4 version released on Apr 24, 2019, you can see the details below.

--- For Navier HUD 2 users ----------------
Navier HUD 2, will have no further maintain, is replaced by 3, but you can download Navier HUD 3 for free from your order history or the below link, and no need to purchase Navier HUD3.
Navier HUD 2 link : https://play.google.com/store/apps/details?id=idv.xunqun.navier.premium
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NOTE: Needs 3G connection when navigation

NAVIER HUD – New navigation concept

Navier HUD is a navigation App designed to use for the HUD (Head-up display) and helps drivers put attention on the road when driving. The driving information is projected onto the windshield by reflecting the smartphone screen while putting the phone in front of the vehicle's windshield.

Navier HUD is an information provider for driving. It contains a customizable layout, which is able to put widgets they care and remove what they don't care. Navier HUD calculates the real-time information via the phone sensor, such as GPS and gyroscope. Meanwhile, Navier HUD supports to acquire the vehicle data from OBD2 Bluetooth adapter. Through the data from OBD2 protocol, the information, such as vehicle's speed, engine RPM, and engine coolant temperature can be shown through the interface and which is more accurate than the data from sensors of the smartphone.

[Safer driving]

Navier HUD (head-up display) projects navigational instructions on the windshield, effectively providing essential information to the driver without having to take your eyes off the road.

[Turn-by-turn navigation]

The navigational instructions are designed to be read clearly in HUD mode. Simple instructions and signals are the main goals here. Turn-by-turn speech instructions are supported (not all languages).

[OBD2 support]

You can acquire information via the OBD2 dongle on your car, such as the runtime speed, revs, and fuel level.

[Usable for different vehicles]

Navier HUD can be used for driving, biking, jogging... You can switch between HUD and normal mode for regular use on a phone holder.

[Customize your layout]

Navier HUD lets you create your own panel layout with parts like a compass, routin