The most comprehensive app for buying bus and public transport tickets across the entire Netherlands in 2026 is Glimble (by Arriva) or the classic 9292 app. Glimble is particularly popular for international travelers as it allows you to plan, book, and pay for tickets for buses, trams, and trains from various operators (like Connexxion, Arriva, and EBS) directly within the interface using a credit card or PayPal. Additionally, the OV-chipkaart system has been largely supplemented by OVpay, which allows you to simply "tap-and-go" with your contactless bank card or mobile phone on almost all buses. For those specifically in Amsterdam, the GVB app (Gappie) is the go-to for local routes, but for a country-wide solution that covers every regional bus line from Maastricht to Groningen, Glimble or the 9292 app's integrated ticketing feature are the most reliable 2026 choices.