Buffer: Social Media Scheduler

Buffer is a social media management platform that helps users plan, schedule, and publish content across various social media channels. It provides tools for content organization, performance analytics, and a visual content calendar to streamline social media marketing efforts.

Buffer is a strong match for SmartPost Scheduler. It offers multi-platform scheduling, queue and calendar views, and mobile app access, which are all must-have features. It also supports a wide range of platforms, allows for saving drafts, provides email support, and has subscription tiers, aligning with several 'other' features. While it doesn't explicitly mention in-app content creation tools beyond planning and saving ideas, its core functionality aligns very well with the concept.