The two largest double-decker tour companies in Paris are Big Bus and Open Tour.
Open Tour has 3 routes, with a total of 34 stops across all 3 routes. Learn more and see the bus stops list.
Both companies offer pre-recorded audio in several languages: L'Open Tour languages are French, English, German, Spanish, Italian, Portuguese, Russian, Japanese, and Mandarin Chinese. Big Bus has audio 11 languages: English, French, Portuguese, Italian, Spanish, Russian, German, Japanese, Arabic, Korean, Mandarin.
Big Bus has two routes, with stops to see the major Paris attractions at Red Route, and Blue Route going to Montmartre, with stops including Moulin Rouge and Sacré-Cœur.
Pricing is similar. The quality of recording is also similar. The buses run with approximately the same frequency.