Punchtime for Trello vs Tiempo: What are the differences?

Developers describe Punchtime for Trello as "Time tracking and insights for projects on Trello". Manage your projects with Trello, track time with Punchtime. Log work: describe what you did, for how long, and who participated. Categorize your work with Trello cards or labels. Drill down with powerful filters and give your estimates a reality check. On the other hand, Tiempo is detailed as "The easiest way to pay your contractors". Tiempo is custom tracking, approval, and payments for your contract workers. Whether you pay by the hour, project, word, or widget, Tiempo's got you covered. Quickly look across your workforce to understand who's been working, what they’ve done, and what they’re owed.

Punchtime for Trello and Tiempo can be categorized as "Time Tracking" tools.