ROCKHARZ Compass vs V2X2MAP
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ROCKHARZ Compass
Navigate a festival with audio and haptic guidance. Find routes, points of interest, food, services, and more. Customize with your own locations.
- Audio and haptic navigation
- Festival map with POIs
- Food and drink menus
- Service point locations
- Customizable POIs
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The ROCKHARZ Festival navigation app for blind and vision-impaired people. Routes and POIs, maps, food & drink menus, service points, entrances and exits, concession and merch stands, and more. Navigation with audio and haptic guidance throughout the entire festival grounds. You can add your own POIs (e.g., the location of your tent). Further information about our extensive inclusion efforts and existing offers at the festival is available at the reception desk of the Inclusion Camp and on our website. (rockharz.com/inklusion)
V2X2MAP
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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 β live on the map, on the Lock Screen and in CarPlay. IMPORTANT β 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 β 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 βConnect & Flashβ β 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 β the setup guides you through every step: the app finds the receiver βITS-G5-RXβ via Bluetooth and connects β no account, no pairing code. After that it connects automatically in the car. FEATURES β’ 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 β already from about 300 m as a preview β’ Green-wave speed: the speed at which you arrive on green β never above the speed limit β’ CarPlay: a large, easy-to-read traffic-light board and an info overview right in the car β’ Live Activity on the Lock Screen and in the Dynamic Island β’ Warnings about emergency vehicles heading your way and hazard warnings (e.g. roadworks, end of a traffic jam) as notifications β also in the background β’ Lane-level intersection maps with your lane and turn arrows on Apple Maps β’ Country rules for Europe and the UK: red-and-amber, turn signals, left-hand traffic, km/h or mph β’ List of all stations nearby with details β’ Record drives and replay them later β’ 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 β traffic rules and the real signal always apply. Receiving radio services may be regulated in your country β see the note inside the app.
Screenshots
Verdict
The clearest difference is price: ROCKHARZ Compass at Free against V2X2MAP's $1.99. ROCKHARZ Compass also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
ROCKHARZ Compass is free to download; V2X2MAP costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ROCKHARZ Compass ships an update every 2 days, V2X2MAP every 5 days. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.
| Parameter | ROCKHARZ Compass | V2X2MAP |
|---|---|---|
| Price | Free β better | $1.99 |
| Update frequency | Every 2 days β better | Every 5 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | visorApps | Peter Holzhauser |
In-app purchases
ROCKHARZ Compass
No in-app purchases
V2X2MAP
No in-app purchases





