NuNav

Most navigation apps route you as if you were the only car on the road, which is why they funnel everyone onto the same "fastest" diversion until it becomes the next jam. NUNAV, built in Hannover by Graphmasters, does the opposite: its Collaborative Routing coordinates your journey with every other active NUNAV driver in real time, refreshing conditions every few seconds and folding in live traffic, roadworks and closures so your route continuously adapts. It's completely free and ad-free with no registration, runs on iOS and Android with CarPlay and Android Auto, and keeps data processing inside EU data centres. In an ADAC field test through Hanover's rush hour, NUNAV drivers collectively saved around 120 minutes versus Google Maps. Note that it needs an internet connection and currently covers a core group of European countries, with coverage expanding.