An agency’s scheduling tool has to survive more than one client’s account before it becomes a liability. The two things that actually separate tools here: whether posting failures are surfaced anywhere, and whether the tool distinguishes internal staff access from client-facing access at all.
Where it holds up
Buffer’s Team plan ($12/channel/mo) adds content approval workflows, but it’s built for one organization, not many client accounts stacked under one login — there’s no per-client workspace separation. If a scheduled post fails on Buffer, nothing tells you; it’s a manual discovery.
For genuine multi-client separation with client-facing review, this corridor overlaps with Approval & Agency Workflow — see HeyOrca and Sendible, both purpose-built for that job rather than scheduling with approvals bolted on.
RecurPost sits between the two camps: scheduling-first, but with link-based client onboarding (clients connect accounts via a share link, no credentials), approvals, and unlimited workspaces on every plan — Agency is a flat $79/mo for 20 profiles and 3 users. Disclosure: same team as this site; the profile carries the full fit/non-fit breakdown.
Non-fit
If you’re running more than a couple of client accounts, a scheduling-first tool without native workspace separation (Buffer, Publer on lower tiers) becomes a login-juggling problem fast.