Hiver vs Gmelius for Gmail Shared Inbox: Support or Workflow?

If you have decided to keep your team on Gmail rather than migrate to a dedicated help desk, Hiver and Gmelius are the two most-considered ways to turn a shared inbox into something that behaves like real teamwork. They look similar in a five-minute demo — both live inside Gmail as a Chrome extension, both add shared labels, notes, assignments and collision detection — and they diverge sharply the moment you push on what a real week of work looks like.

The short version is that these are not two versions of the same product. Hiver has been sharpened, tier by tier, toward customer support: SLA policies, tag-based routing, ticket-shaped analytics and a Gmail-native queue. Gmelius has been sharpened toward workflow and outbound: kanban boards that sit above the inbox, shared email drafts with edit history, and cold-email sequences. Which is right for you depends less on price and more on whether you spend the day answering incoming email or moving work through a pipeline.

The verdict up front#

Pick Hiver if your primary job is answering inbound customer email — refunds, order questions, IT help, or anything that has an SLA around it. Its shared inbox behaves like a support queue. You assign conversations to owners, tag by category, watch a first-response SLA count down, and report on volume by tag and agent at the end of the month. If you would otherwise be evaluating Help Scout or Zendesk but do not want to leave Gmail, Hiver is the closer analogue.

Pick Gmelius if the work is project-shaped — sales handoffs, client onboarding, campaign coordination, agency traffic — where an email is a card that moves through stages, not a ticket to resolve. Gmelius puts a kanban board on top of your shared labels, gives you shared drafts with revision history, and ships sequences for cold outreach. If your team is closer to a small ops or sales pod than a support desk, this is the shape you want.

Gmelius has built harder on the workflow-and-outbound axis than Hiver has, and Hiver has built harder on the support-desk axis than Gmelius has. That is the honest concession in both directions, and it is why the choice is easier than the marketing pages suggest.

At-a-glance comparison#

This table maps the dimensions that decide the purchase, not the ones the vendors decide to lead their landing pages with. Verify each cell against the current vendor page before you sign anything — the tiers and add-on structures move.

Where Hiver wins#

Hiver's genuine advantage is that it looks and feels like a purpose-built support desk that happens to be inside Gmail rather than in a separate tab. If your team's day is measured in first-response time, resolution time, and CSAT, the primitives are all there in the shape you already recognise from Zendesk or Help Scout — just without asking the customer to email a new address or forcing your team into a new interface.

Concretely, the pieces that matter to a support team are all first-class citizens rather than approximated:

• SLA policies. You define what "on time" means by tag, sender or channel, and every conversation shows a countdown against the target. Breaches trigger notifications and land in reports.
• Per-conversation ownership. A conversation is assigned to exactly one agent, its status moves through open, pending and closed, and nothing falls between two people because both thought the other had it.
• Support analytics. Volume by tag, response time by agent, backlog by day of week — the reports are shaped like the questions a support manager actually asks.
• Automations. Round-robin assignment, tag on arrival, auto-close after N days without a reply — the standard help-desk levers, applied to a Gmail thread.
• Non-email channels via the standalone app. If your support surface has grown past email to include chat, WhatsApp or voice, Hiver's separate standalone product picks those up so you are not stitching two vendors together.

The unspoken advantage is cultural fit. If your team already thinks in tickets — case numbers, status, owner, resolution — Hiver keeps that vocabulary and slots it into the inbox they already use. Onboarding a new hire takes an afternoon rather than a week, because the interface is still Gmail. That is the exact reader Hiver is written for, and on that reader the product delivers.

Where Hiver is weaker is anything that is not a support ticket. It has no kanban view of the work, no native sequences for outbound, and no shared-drafting model where two people can be inside the same email. If your team wants those things you can force them, but you would be pushing the product against the grain it was cut with.

Where Gmelius wins#

Gmelius's genuine advantage is that it treats email as work in flight rather than as tickets to be closed. The centrepiece is the kanban board: your shared labels become columns, and threads become cards you drag from one stage to the next. For any team where an email is a step in a process — an inbound lead qualifying, a client onboarding through stages, an order moving through approvals — that mental model is a much better fit than a ticket queue.

The pieces that separate Gmelius from a straight support tool:

• Kanban boards over shared labels. The board is not a bolt-on view; it is how you run the work. Cards carry the underlying thread, so replying in the card replies to the email, and dragging the card changes the label.
• Shared drafts with real collaboration. Two people can be inside the same draft, edits are attributed, and the send is authorised by whoever the assignment says should sign it. Support tools tend to treat this as internal notes on a private draft.
• Email sequences for outbound. Cold outreach, nurture cadences and follow-up automation live inside the same product, so your sales pod does not need a second tool for outbound and a third for inbox management.
• Rules that move work, not just tag it. Automation in Gmelius is oriented around moving a card to the next column, opening a task, or sharing to a specific label — the actions a workflow cares about, not the actions a ticket queue cares about.
• Shared email templates and snippets that behave like team assets, versioned rather than pasted into a personal drafts folder.

The unspoken advantage is that Gmelius does not force a team to pretend the work is support when it is not. A sales pod, an ops team, an agency handling client traffic — these all have email as a hop in a longer chain, and Hiver's queue-shaped world does not describe that chain well. Gmelius does, and it does it without leaving Gmail.

Where Gmelius is weaker is anywhere a genuine support SLA matters. The pipeline metaphor is the wrong shape for "we must reply to a paying customer within four business hours or we owe them a credit." You can build something SLA-adjacent with automations, but it is not the first-class primitive Hiver's day is built around.

What both do to Gmail — and whether it matters#

A fair question at this point is whether either extension slows Gmail down enough to notice. Any Chrome extension that injects a persistent UI into Gmail runs some overhead — the load pattern is the same for Hiver, Gmelius or any of the other layers in this category. On modern hardware with a healthy Gmail account (say, under 200,000 messages), most users will not feel it in day-to-day use.

Where you can feel it: a mailbox with hundreds of thousands of messages, a machine with limited memory, or a browser already carrying eight or ten other extensions. In those situations Gmail loads noticeably more slowly with either extension active, and both vendors will tell you the same thing — trim the other extensions before blaming this one. If that is your situation, the honest advice is to run a two-week trial in a real workday and see, because your Gmail is a bigger variable than the choice between these two vendors.

A quieter difference: Hiver's shared inbox model creates a light abstraction over Gmail labels — assignments, statuses and tags are Hiver's, not Gmail's — while Gmelius leans harder on Gmail's own labels as the connective tissue. Neither is better in the abstract; the second one is easier to leave later because more of your data is still in Gmail labels when you go, and the first one is more consistent while you stay.

Pricing shape — verify on the vendor page#

We do not print competitor prices here. They move too fast, the tier names change, and any figure a comparison post publishes today is a hostage to the next quarterly reprice. What we can describe is the shape.

Hiver publishes a free tier plus a ladder of per-seat paid tiers. SLAs, deeper analytics and the fuller automation set are gated above the entry paid tier — so the price of "Hiver with the features you decided you wanted" is usually a step above the price of "Hiver" as it appears on the front of the pricing page. A voice add-on is metered by the minute rather than bundled, if you use it. AI features are bundled into the paid tiers rather than sold on top, but the depth of what you get is tier-gated.

Gmelius publishes per-seat paid tiers with kanban, sequences and shared drafts distributed across them, and AI features scoped by plan. The workflow-oriented pieces you would pick Gmelius for tend to sit on the middle tier, not the entry one.

Two rules of thumb before you sign either contract. First, price the tier that actually contains the two or three features you decided you wanted, not the entry tier — the delta is usually where the meaningful cost comparison lives. Second, ask each vendor to put the annual multi-seat price in writing including any add-ons, because the surface number and the true number differ enough to matter.

Who each is genuinely for#

The clearest way to choose is to skip the feature grid and pick the sentence below that describes your team.

• Customer support team of 3 to 30 people, on Gmail or Google Workspace, currently drowning in a shared alias, missing tickets and arguing about who owns what — buy Hiver. It is the shortest path from "our shared@ inbox is chaos" to "we have queues, owners, SLAs and reports" without leaving Gmail.
• Ops or IT team handling internal help requests inside a Google Workspace domain, where turnaround is measurable and stakeholders expect a status — Hiver. Same shape as external support, same primitives.
• Small sales or partnerships team where every email is one step in a multi-step deal, and you need a board view rather than a queue — Gmelius. The kanban and sequences are the reason to be there.
• Agency or services firm handling client email where a message is a card moving through stages of a project, and multiple people co-write replies — Gmelius. The shared-drafting model was written for this.
• Founder-plus-VA setup where a single person mostly triages the inbox and hands specific threads over — either product will work, but this is under-featured for both. Consider whether you need a shared inbox tool at all before you buy either.

A third option, honestly#

Both Hiver and Gmelius solve the shared-mailbox problem — many hands on one address. If that is genuinely your problem, one of them is your answer, and this section is not for you. But some readers arrive at this comparison because their real problem is closer to "I personally get too much email and my triage is falling behind," and a shared inbox tool would be an odd fit for that. If that is you, the shape you want is different.

That is the shape we build AI Emaily around: an AI-native email client that connects to Gmail, Outlook or any IMAP account and acts as a chief-of-staff for one person's inbox rather than a queue for a team. It triages incoming mail against a Personal Context brain and per-client profiles, drafts replies in your voice, and runs in three modes — Manual, Copilot (approval-first), and Autopilot (bounded by the rules you set) — with undo and a full audit trail behind every action. There is no free plan; there is a 7-day free trial on Pro or Autopilot, and you can see the details on the AI Emaily pricing page.

Where AI Emaily is honestly the wrong answer is exactly what Hiver and Gmelius are built for: several agents sharing one address, collision detection between teammates, SLA policies against a support target, or kanban boards driving a shared pipeline. We do not compete on those, and pretending otherwise would waste your time. If those things matter, buy one of the two vendors compared above and skip us.