When comparing Todo by Appigo vs Quire, the Slant community recommends Quire for most people. In the question“What is the best cross-platform to-do list app?” Quire is ranked 36th while Todo by Appigo is ranked 66th.
Ranked in these QuestionsQuestion Ranking
Todo syncs quickly across all your devices.
Pro Many possibilities
The app is easy to use and supports many work styles.
Pro Cross platform, sync and offline usage
Pro Organizations, projects, task, hierarchical subtask and smart folders
Unlimited tasks/todo structures
Pro Integration with calendar and github
I haven't dabbled with that though
Pro Multiuser handling
Handle multiple users and assignments
Pro It is free
As of now, at least.
Con No Windows app
Unlike rival to-do list apps such as Todoist or Wunderlist, Todo does not have an official app for Windows.