When comparing SyncMate vs Trello, the Slant community recommends SyncMate for most people. In the question“What are the best scheduling/calendar apps that syncs across desktop and iOS/Android?” SyncMate is ranked 4th while Trello is ranked 11th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Share individual events (tasks/projects/meetings)
You can easily and automatically create a stand-alone webpage for every single event. Add all the details for the event, then share the event page link with anyone who needs to help/be part of it. You can use comments to discuss details on the event page. Easy, free, makes it easy to collaborate on individual tasks or projects without a big setup.
Pro Powerful calendar
Integrate schedule with your task management --- because if you don't know when you're going to do it, are you ever going to?
Pro Small, dedicated team
Boot-strapped company, run by the original founders/developers, fully committed to supporting and improving the product over time. Over 3 million users currently
Pro Scalable
Works well for individual/personal work, free plan is more than adequate for this or for running a small business. Easy to scale if needed, paid plans available.
Pro Free mobile apps
For both iOS and Android. Free, fully functional.