The STIB-MIVB app only gives information on public transport 🚍🚊🚇🚆 In addition to the route planner or real-time, you can also see e.g. the balance of your MOBIB card.
The Floya app is both multimodal and intermodal. It allows you to look up and combine several mobility options, whether public, private or shared: train, tram, bus, metro, scooter, bike, car, taxi… It also covers every step: planning, booking and paying. This way, you always have the choice.