The best alternatives to Assemble are Nifty, Height, and ActiveCollab. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Assemble?
Haggle — A CTA buyers want to click, when they aren't ready to demo
Height is the autonomous project collaboration tool. With an embedded AI engine, Height handles the legwork of building products on autopilot. Offload soul-sucking chores like bug triage, backlog grooming, and ...