What a Shared Inbox Really Costs in 2026 (Real Math, 17 Tools)
Seat prices are the smallest part of the bill. The real cost of a shared inbox is the pricing model: caps, per-outcome AI, expiring credits. Here is the math.
- Entry prices cluster at $12 to $25 per seat, but the pricing model decides the real bill: per-seat flat, per-workspace, per-ticket, per-outcome, or expiring credits.
- AI is where budgets break: per-resolution fees ($0.75 to $0.99 per conversation) can exceed seat costs at volume, while some tools include AI in the seat with no metering.
- Cliffs matter more than rates: Crisp's 11th agent triples the bill, Tidio jumps from $59 to $749, and HubSpot's real service tier starts at $90/seat plus a $1,500 onboarding fee.
- Model your own numbers across all 17 tools in the [interactive cost calculator](/shared-inbox-cost-calculator/) at your exact team size and AI volume.
Shared inbox software runs $12 to $25 a seat at entry across the category, with free native options in Google Workspace and Microsoft 365. But the seat price is the smallest part of the answer in 2026. The real bill is set by the pricing model: per seat, per workspace, per ticket, per outcome, or credits, and by where each model's cliffs sit. Here is the honest math, and a calculator to run your own.
The four pricing models
The shared inbox and support-tool category has settled into four distinct pricing shapes. Understanding which one a tool uses matters more than comparing headline seat prices.
Per-seat flat. You pay a fixed price per agent, per month. AI is either included or absent, but the rate does not change with usage. Drag ($12 to $24, AI included from the Plus plan), Missive ($14 to $24, AI requires Productive tier plus your own OpenAI key), Hiver ($25 to $65, AI is a separate $20/seat add-on), and Front ($25 to $65+) all follow this shape. The bill is linear and predictable.
Per-agent plus metered AI. The seat price looks normal, but AI features carry a second charge. Help Scout charges $0.75 per AI resolution on top of $25/seat. Zendesk bundles per-resolution AI fees (estimated $1.50 to $2.00) into premium tiers. Freshdesk adds a $29 Copilot add-on plus session packs at roughly $0.49 per session that expire monthly. The bill compounds as AI volume grows.
Per-workspace and per-conversation. Instead of charging per agent, these tools price by workspace or by ticket volume. Crisp charges $45 to $295 per workspace with hard seat caps (the 11th agent triggers a 3x tier jump). Tidio starts at $59 but jumps to $749 when you pass its seat or conversation limits. Gorgias prices by ticket volume ($0.36 to $0.40 per ticket on higher tiers). These models can be the cheapest at small scale and the most expensive at growth.
Per-outcome agents. AI agents that charge for every conversation they touch or resolve. Intercom's Fin charges $0.99 per outcome, and an "outcome" includes assumed resolutions where a customer simply stops replying. Budget alternatives range from $0.05 per conversation (Hugo/Crisp) to $0.29 per resolution (Featurebase Fibi). See the Fin AI alternatives guide for the full tier breakdown.
Three worked scenarios
Every number below comes from the same pricing module that powers the calculator. If a figure surprises you, run your own inputs and see how it breaks down.
The 4-person startup (no AI yet)
At this size almost everything is cheap and several things are free. Tawk.to is $0, Help Scout's free tier covers the team at $0, Crisp Mini runs $45 for the workspace, Drag is $48 ($12/seat), and Missive is $56 ($14/seat, since the free tier caps at three seats). The honest read: price barely separates tools at four seats. Pick on fit, not cost, and check what the free tiers withhold, Missive's free plan keeps only 15 days of history, and Crisp's covers chat only.
The 10-person, single-brand team (moderate AI)
This is the size where models diverge hard. Crisp Essentials comes in at $95 for the workspace (~$9.50/seat), Drag is $180 with AI included, and Zendesk reaches $1,500 with per-resolution AI baked into premium tiers. The honest read: Crisp's per-workspace pricing is genuinely the value leader here, IF you fit inside its 10-seat cap, run one brand, and stay within Hugo's credits. One more hire changes the answer completely.
The 12-person, AI-heavy team (800 AI conversations a month)
Here the meter decides everything. Fin reaches $1,140 of which $792 is outcome fees, Help Scout hits $900 of which $600 is resolution fees, Freshdesk lands at $968 with Copilot and session packs, and Drag is $216 flat with AI included. The honest read: past a few hundred monthly AI conversations, usage-billed AI becomes the largest line on the invoice, larger than the seats. This is the scenario to model before you sign anything.
The cliff map
Every pricing model hides one jump worth knowing before you commit. Crisp caps seats per plan, so the 11th agent forces the $295 tier, a 3x step. Tidio's Growth plan at $59 jumps straight to $749 with nothing in between. Gorgias bills by ticket volume, which means your Black Friday is its payday, overages run about $0.40 a ticket. HubSpot's free inbox is real, but the service features teams grow into sit at $90 or more a seat plus a $1,500 onboarding fee. Fin carries a 50-outcome monthly minimum, and an outcome includes a customer who simply stops replying. And two models quietly expire: Crisp's AI credits and Freshdesk's AI sessions reset monthly, whether you used them or not. None of these is hidden in the fine print exactly. They are just never in the headline.
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How to budget honestly
Model 12 to 18 months out, not this quarter, at the tier you will actually need rather than the entry tier. Assume a realistic 40 to 70 percent AI resolution rate, not the 80-plus in vendor case studies. Count every meter: seats, AI usage, add-ons, and the cliff nearest your headcount. Then trial your top two against the real inbox for a week, which settles most of it. The full tool comparison covers fit; the calculator covers cost.
Frequently asked questions
How much does shared inbox software cost?
Entry pricing runs $12 to $25 per seat per month (Drag from $12 with AI included from $18, Missive from $14, Hiver and Help Scout from $25), with free native options in Google Workspace and Microsoft 365. The real variable is the pricing model: usage-billed AI and seat caps can move the true cost far from the sticker.
What is the cheapest shared inbox?
Tawk.to is genuinely free with unlimited agents, though light on AI and automation. Among paid tools, Drag starts at $12 a seat, and several tools (Drag, Missive, Help Scout, Freshdesk, HubSpot, Crisp) have free tiers with real limits worth reading.
How much does AI support cost?
It spans two orders of magnitude: included in the seat (Drag, from $18), roughly $0.05 to $0.49 per conversation or session on the budget metered tools (Hugo, Fibi, My AskAI, eesel, Freshdesk), and $0.75 to $0.99 per resolution or outcome at the premium end (Help Scout, Fin), before enterprise platforms at $50K and up.
What is per-outcome pricing?
You pay each time the AI is judged to have handled a conversation. Fin charges $0.99 per outcome, and its definition includes assumed resolutions, a customer who exits without asking for more help, plus procedure handoffs and disqualifications. Powerful at high deflection volume; hard to forecast.
Why did my support tool bill jump?
You most likely crossed a cliff: a seat cap (Crisp's 11th agent), a plan wall (Tidio's $59 to $749), a ticket-volume tier (Gorgias), an AI allowance running out, or an add-on that scales per seat. The cliff map above lists the common ones.
Where can I compare all shared inbox tools on price?
Our shared inbox cost calculator at /shared-inbox-cost-calculator/ computes 17 tools at your team size and AI volume, with every price verified against vendor pages and the verification dates shown.
Nick Timms
Co-founder
