How we picked
A shared inbox should make a team feel like one responsive person to the customer. We judged collision detection, assignment and ownership, private notes and @mentions, saved replies, and how personal the customer-facing experience stays. We also weighed channel coverage — whether the inbox unifies email, chat, and messaging — and how little process overhead each tool imposes on a small team.
What to consider
- Best overall → Help Scout. Collaborative email with collision detection, notes, and saved replies that keeps every reply personal — no ticket numbers in sight.
- Best omnichannel collaboration → Front. A shared inbox that unifies email, SMS, social, and chat, with the strongest internal-discussion and workflow tools for teams.
- Best inside Gmail → Hiver. Turns Gmail itself into a shared inbox, so teams collaborate on support without leaving the interface they already live in.
- Best real-time collaboration → Missive. Chat-style internal threads attached to each conversation make it feel like Slack and email merged into one workspace.
- Best multichannel messaging → Trengo. Built for teams fielding WhatsApp, social, and chat alongside email, with automation to route the flood efficiently.
Pricing snapshot
Hiver and Help Scout offer the gentlest entry, with shared-inbox plans typically in the $15–$25/seat range. Missive and Trengo land in a similar band, scaling up with channels and automation. Front sits at the higher end, reflecting its omnichannel depth and collaboration features. For email-only teams, Help Scout or Hiver deliver the most value; for many channels, Front and Trengo justify the step up.
Trial advice
Test with your whole support team handling real customer email for a week. Watch for the moments that matter: does collision detection actually stop double replies, do assignments keep ownership clear, and do customers still get answers that read like a person wrote them? The tool that keeps the team in sync without adding busywork is the one to keep. Trial two side by side.