Traffic Blinker vs WWF Nautical Chart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Traffic Blinker
Enhance your visibility and safety while cycling or using personal mobility devices. This app uses your Apple Watch to display a prominent, blinking warning sign when you're about to turn, alerting other road users to your intentions. It also tracks your fitness data and syncs with Apple Health.
- Visual turn warnings for cyclists
- Customizable blinker color and speed
- Sound and vibration alerts
- Fitness tracking for cycling
- Syncs with Apple Health
- Multiple display options (arrow, stop sign)
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When you turn onto a street, you want to warn other drivers. This Apple Watch app displays a warning sign on your screen when you are about to turn left. The Traffic Blinker app helps you be more visible on the road! It is a great safety tool for bikers, cyclists, scooters, electric scooters, e-bikes, skateboarders, hoverboards, three-wheelers, or even one-wheelers. Bicycle Story: When I ride from home to work (or school) on my bike, I want to be seen on the route, especially in the dark, and I want other drivers to know what I am about to do. One of the most dangerous traffic moments is always turning into a street. This unique utility app helps you warn other drivers. Before the intersection, I extend my hand or arm, and the Apple Watch automatically activates the screen. It displays a blinking orange arrow to alert other drivers on the road. The Apple Watch is the ideal tool to stay visible, stay safe, and be seen. Today, there are more than 9 million bicycle routes and around 1 billion bicycles worldwide. That is a huge number. The Traffic Blinker app can help you be seen and stay safe, especially at night. It is designed and engineered as a simple concept—and it works. The Traffic Blinker app is a flashing safety light that makes you more noticeable. It is perfect if you are riding your bike after dark. When the screen is activated, the Retina LTPO OLED display at 1000 nits flashes the arrow pointer or your selected visualization on the screen. It also includes an option to hear and feel it when the screen activates. Gentle taps from the Taptic Engine let you know the screen is active, pulsing in rhythm with the blinking arrow. In addition, this is the ultimate fitness app for your Apple Watch. It tracks your health data, such as heart rate, active calories, time, and cycling distance, and syncs it with your Apple Health app. This useful and premium Apple Watch app works on both iOS and watchOS. So what are you waiting for? Get it now! How does this app work? 1. Open the Traffic Blinker app on your Apple Watch 2. Press the green button to start riding 3. When you want to switch from the right to the left lane, stretch your left arm out 4. The Apple Watch activates the screen and displays the warning sign to other drivers 5. Once you are in the left lane, return your hand to the handlebars 6. To stop the app, tap on the back button Recommended action: * For the best experience, you are required to enable the Always On feature must be enabled on your Apple Watch. That is available for Apple Watch Series 5 and higher. Apple Watch Features: ◆ Choose between Full Screen, Blinking Arrow, Moving Arrow, Stop Sign, or Animated Blocks (from right to left) ◆ Instantly track your workout in the Apple Health app as an outdoor cycling activity ◆ View real-time workout data, including current time, heart rate, distance, and calories ◆ Customize the blinker color and blinking speed ◆ Enable or disable sound and vibration for gentle taps during each blinking pulse Project information: https://www.stefanvd.net/project/traffic-blinker
WWF Nautical Chart
This app helps users navigate Wismar Bay and the Bay of Greifswald, highlighting sensitive areas and boating rules within Natura 2000 zones. It provides information on protected areas, fishing regulations, and bird species to promote harmonious coexistence between people and nature.
- Pinpoint location in Wismar Bay and Greifswald Bay
- Shows sensitive areas and boating rules
- Identifies protected Natura 2000 areas
- Provides information on nature and regulations
- Includes fishing and bird information
- Routing function with waypoints
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The app can be used to pinpoint your location in Wismar Bay and the Bay of Greifswald It also shows the particularly sensitive areas and boating rules in the voluntary agreements within the Natura 2000 areas. Users, e.g. people who are fishing, sailing, motor boating, kite-surfing, rowing, kayaking or canoeing, can see on their smartphone or tablet at any time whether they are inside or outside protected areas. It is no longer a valid excuse to say you don’t know where you are! The app is designed to help you comply with the BOATING RULES. Improved navigation on the water will reduce disturbances in the protected bays and in the breeding and resting areas of waterbirds. It is intended to help ensure that people and nature can co-exist in harmony in the species-rich coastal waters. Interesting information about NATURE is provided for individual areas and the legal regulations are also available for anyone who wants to know more. HOW THE APP WORKS Navigate through the Wismar Bay and the Bay of Greifswald using the routing function. Waypoints make it easy for you to avoid the protected areas. Click on the red and orange zoning or colour-coded protected areas to learn more about nature and special regulations. The “Nature” section contains a glossary with explanations of protected areas, regulations and institutions. In the “Fish” section you can find useful information about fishing, including a description of individual fish, fishing seasons, minimum sizes, periods closed to fishing and the Red List status of the individual species. The “Bird” section features common birds with photos and audio. Detailed maps can be downloaded under “Info” and then “Nautical charts”. FEATURES: - Waypoints can be set with the routing function. The distance and course of the selected route are automatically displayed. - Orange and red areas indicate when boating is permitted in the area or not. - If the boat crosses the boundary of a restricted protected area, a message automatically appears on the map. - Coloured areas provide information about the protected areas (including nature conservation areas and fish sanctuaries). - Minimum sizes and seasons closed for fishing: during the season when fishing is not permitted for a species, a crossed-out fishhook appears next to the fish. - Winter sanctuaries, fish and spawning sanctuaries are only shown on the map during the period closed for fishing. - Use the layer icon to show and hide the areas for boating and fishing. Have a great day out on the water! Enjoy your visit and please respect nature!
Screenshots
Verdict
The clearest difference is price: WWF Nautical Chart at Free against Traffic Blinker's $1.99. WWF Nautical Chart also leads on iOS requirement (14.0 vs 18.0). Traffic Blinker's advantage is update cadence (every 2 months vs every 6 months). 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
WWF Nautical Chart is free to download; Traffic Blinker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Traffic Blinker ships an update every 2 months, WWF Nautical Chart every 6 months. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.
| Parameter | Traffic Blinker | WWF Nautical Chart |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 263 MB |
| Age rating | 4+ | 4+ |
| Developer | Stefan Van Damme | WWF Deutschland |
Customer experience
Traffic Blinker
WWF Nautical Chart
In-app purchases
Traffic Blinker
No in-app purchases
WWF Nautical Chart
No in-app purchases







