Halo accelerates lettings by increasing tenant engagement Halo is a tenant engagement platform that plugs into any PMS to unify service and partner offerings into a fully-digital tenant experience. For agents The HaloOS platform takes minutes to customize before you’re good to go, closing rental deals faster by streamlining critical lettings workflows and unifying tenant communications. For tenants For tenants, the Halo Tenant App makes renting pain — and paper — free. It provides all the digital rental experiences they expect, from signing on the dotted line to finding the best insurance, broadband, utilities deals and other services.