Can my partner and I share one login?
You can, but inviting them is better. A collaborator has their own sign-in, you both edit at the same time, changes sync live, and nobody is signed out when the other signs in.
How many people you can invite depends on your plan: none on the free plan, three on the Planner plan, and as many as you like on PlanSeats Pro. See How do I invite my partner so we can both edit?
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Updated 25 September 2026