In the evolving landscape of urban mobility, Mobility as a Service (MaaS) has emerged as a sustainable solution for the future, integrating shared transport, payment, and journey planning, and offering an alternative to private cars - reducing congestion and pollution. A 'Practical MaaS' approach integrates public transit ticketing within popular MaaS apps, enhancing public transit visibility and simplifying ticket purchases for passengers. Masabi’s Justride Software Development Kit (SDK) seizes this initiative, integrating public transit with the rapidly expanding MaaS ecosystem, and empowering mobility app users to plan seamless end-to-end journeys using the powerful journey-planning functionality embedded within these apps. With Masabi's Justride SDK, agencies like Denver's RTD, Las Vegas's RTC, Fire Island Ferry in NYC, and NEORide across Ohio, Michigan, Kentucky and West Virginia, along with operators in Japan, have quickly partnered with MaaS giants like Uber, Transit, Moovit, and Jorudan to the benefit of agencies and passengers alike. Pre-integration of the SDK in popular MaaS apps eliminates hefty development costs, an approach which aligns with global sustainability goals - reducing carbon footprints by promoting public transit and reducing reliance on private vehicles.