Population aging is a macrosocial trend with growing implications for mobility and public health. In the coming decades, many countries are expected to experience a marked increase in the average age of their populations, raising new challenges for healthcare and mobility systems. The promotion of active mobility, widely supported in the literature for its role in maintaining health in later life, has gained visibility. However, it remains unclear whether existing digital tools, such as lifestyle apps, effectively contribute to this goal. Methods: This study examined the effectiveness of applications and tools designed to promote walking among older adults through a systematic literature review, complemented by additional sources, including sentiment analysis of user reviews. Results: Many walking apps offer features such as step tracking and personalization, but few address both physical activity and social isolation simultaneously. Available evidence suggests potential benefits in gait quality, balance, and reduced sedentary behavior in specific contexts. User feedback also points to high satisfaction, especially with simple and accessible interfaces. However, the scientific literature supporting these outcomes remains limited in scope and generalizability. Conclusion and practical insights: This multi-source review suggests that walking apps may support more active lifestyles among older adults, though current evidence is not yet conclusive. Future app development should prioritize usability and incorporate features that address both physical and social well-being, while ensuring accessibility and affordability for a broader range of users.