V2X2MAP

See live ITS-G5 traffic radio

$1.99 · Designed for iPad. Not verified for macOS.

New in 2.0: three-step setup, traffic lights from about 300 m, redesigned CarPlay, green-wave speed – now in eight languages. V2X2MAP makes invisible traffic radio visible: the app shows the C-ITS/ITS-G5 messages that traffic lights, vehicles and roadwork warning trailers around you broadcast on 5.9 GHz – live on the map, on the Lock Screen and in CarPlay. IMPORTANT – RECEIVER REQUIRED: An iPhone cannot receive this radio by itself. Check https://v2x2map.com/ how to get a receiver. The app needs an ESP32-C5 microcontroller as receiver, flashed once with our free open-source firmware. Without the receiver the map stays empty – to try it out, start the demo drive. WHERE IT WORKS: the app receives the European standard ETSI ITS-G5 (5.9 GHz) as broadcast by traffic lights and vehicles mainly in Europe. Other V2X systems such as C-V2X (e.g. China) or ITS Connect (Japan) cannot be received. The demo drive works everywhere. HOW TO SET UP THE RECEIVER (once, about 2 minutes) 1. Connect the ESP32-C5 to a computer with a USB cable. 2. Open v2x2map.com/flash in Chrome or Edge and click “Connect & Flash” – the firmware is written in about a minute. 3. Unplug the receiver once and plug it back in. From then on it runs from any USB charger, power bank or the USB port in your car. 4. Open V2X2MAP – the setup guides you through every step: the app finds the receiver “ITS-G5-RX” via Bluetooth and connects – no account, no pairing code. After that it connects automatically in the car. FEATURES • Traffic-light assistant: when approaching, the signals of your approach per direction (left / straight / right) with the colour as a word, remaining time and distance – already from about 300 m as a preview • Green-wave speed: the speed at which you arrive on green – never above the speed limit • CarPlay: a large, easy-to-read traffic-light board and an info overview right in the car • Live Activity on the Lock Screen and in the Dynamic Island • Warnings about emergency vehicles heading your way and hazard warnings (e.g. roadworks, end of a traffic jam) as notifications – also in the background • Lane-level intersection maps with your lane and turn arrows on Apple Maps • Country rules for Europe and the UK: red-and-amber, turn signals, left-hand traffic, km/h or mph • List of all stations nearby with details • Record drives and replay them later • Optional: forward received messages to the open project OpenTrafficMap (off by default) The displays are for information only and never replace watching the road and the actual traffic lights – traffic rules and the real signal always apply. Receiving radio services may be regulated in your country – see the note inside the app.

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Our biggest update yet: • New three-step setup: notes and permissions, a receiver guide to tick off, and a driving profile in one tap – available again any time under Settings → “Set up receiver”. • See lights earlier: the next traffic light appears from about 300 m as soon as the approach is clear. • The light disappears right after the stop line and the next one takes over immediately. • More accurate matching at large junctions: pedestrian signals are no longer shown as car signals. • Redesigned CarPlay: larger signals, the colour as a word (also for colour-blind drivers), distance under every signal, green-wave speed in its own row, a calm screen when no light is near, a smooth change to the next light. • Turns that must yield to pedestrians show a flashing hint; flashing amber is shown as “Flashing amber”. • Wide junctions with several turn and straight-ahead lanes. • Country rules for Europe and the UK: red-and-amber only where it exists, left-hand traffic, mph and yards. • New sound when your light turns green; emergency-vehicle warning only when it is heading your way. • New languages: French, Czech, Spanish, Chinese, Japanese and Korean. • Supports the new receiver firmware 2.0 with a faster Bluetooth link.

The developer, Peter Holzhauser, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    Peter Holzhauser
    Size
    5.2 MB
    Category
    Navigation
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Location
    This app may use your location even when it isn’t open, which can decrease device battery life.
    Languages
    English and 7 more
    • English, Czech, French, German, Japanese, Korean, Simplified Chinese, Spanish
    Age Rating
    4+
    Copyright
    © 2026 Peter Holzhauser