Serif AI Review: Serif AI Pricing, Gmail and Outlook Fit, and Alternatives

Two products, one brand: check which Serif you are buying

This is the fact most reviews miss, and it changes the security answer below. Serif sells a personal email assistant, which is the product above, and a separate "AI employee" for shared inboxes such as info@, support@ and billing@. The shared-inbox product is pitched against Hiver, Front and Missive, and Serif's own page says it "drafts and sends replies on its own", collects documents, qualifies leads and chases unpaid invoices.

The personal assistant does not send anything. The help center states it plainly: it does not automatically send emails for you, it only prepares drafts. The shared-inbox employee is designed to send. If your firm's policy is that no AI sends mail under your name without a person approving it, the personal product fits and the shared-inbox product needs a conversation with Serif about approval settings before you connect billing@. The two use the same pricing page, so ask which plan maps to which product when you talk to sales.

How much does Serif AI cost?

Read out of the pricing page's own plan data rather than its rendered toggle: Lite is $30 a month, or $27 a month billed yearly. Standard is $50, or $45 yearly. Pro is $200, or $180 yearly. All three are single-user plans. Team is $50 per user per month, or $45 yearly, and pools usage across the team with shared playbooks, central billing and priority support. Enterprise is quoted and adds SCIM, SSO, role-based access, custom data retention and an onboarding specialist. Yearly billing saves exactly 10 percent on every tier.

Lite includes the core: email triage and drafting, the meeting recorder, the task manager, the knowledge base and the SOC 2, GDPR and HIPAA coverage. Standard is "5x usage of Lite" plus True Voice. Pro is "20x usage of Lite" plus dedicated support. Every plan starts with a 7-day free trial with full access, you can cancel or change plans at any time from account settings, and changes take effect at the end of the current billing period, so a downgrade does not refund the month you are in.

The number Serif does not publish is what "usage" counts. The pricing page says Standard gives five times Lite's usage and Pro twenty times, but neither the pricing page nor any help center article defines the unit, whether that is drafts, processed emails, recorder minutes or something else, or what Lite's base allowance is. Jace prints 10,000 credits and Fireflies prints its credit costs per feature; Serif prints a multiplier. The practical answer is to run the trial on your real inbox for the full week and read the usage figure in the app before the trial converts. If Lite is enough for a week of your normal mail, it is enough.

Is there a free plan? The pricing page is ambiguous: the Lite feature list is headed "Everything in Free, plus" and the page description says "free to start, no credit card required", but no Free column is shown and the FAQ describes the free part as the 7-day trial. Treat Serif as a paid product with a trial, and if a permanent free tier matters to you, confirm it with [email protected] before you plan around it.

What Serif costs for a team, worked through

Team is billed per user, so the bill scales with headcount. Here are list prices at three common sizes next to ours, so you can see where each product is the cheaper buy.

• One person. Serif Lite costs $324 a year, Standard $540. Officeagent Assistant costs $119 a month billed yearly, $1,428 a year. For one person who wants email, meeting notes and follow-ups handled, Serif is a quarter to a third of the price and is the sensible purchase.
• Five people. Serif Team costs $225 a month billed yearly ($2,700 a year). Officeagent Office costs $319 a month billed yearly for up to ten people, $3,828 a year. Serif is still cheaper, by about $1,100 a year.
• Eight to ten people. Serif Team costs $360 to $450 a month billed yearly. Officeagent Office is $319 for the same ten seats. This is where the prices cross, and it is the case where you should weigh whether the work beyond email is worth having covered too.

Is Serif AI safe?

On paper Serif is ahead of most of its direct rivals. Its security page lists a SOC 2 Type 2 report, which tests that controls actually operated over a period rather than just being designed correctly at one point in time (the Type 1 report Jace holds), plus CASA Tier 2, the assessment Google requires of apps that read Gmail, Google Verified status, GDPR and HIPAA compliance. It says email is never used to train general models, is never stored on Serif's servers, and that what the assistant learns is encrypted at rest and private to you, not visible to teammates.

Two practical checks. First, HIPAA compliance is a claim about Serif's controls; a covered entity still needs a signed business associate agreement before patient email touches the tool, so ask for the BAA rather than relying on the badge. Second, the safety answer depends on which product you buy, as above: the personal assistant drafts and never sends, while the shared-inbox employee is built to reply on its own. For a compliance-heavy office the personal product is the conservative choice.

Does Serif AI work with Outlook?

Yes. Serif's pricing FAQ says it connects to Gmail or Outlook in one click and works inside the inbox you already use, and the download page offers both a Gmail and an Outlook install. Drafts appear in your mailbox as normal drafts, so the Outlook desktop and mobile apps see them without any Serif app installed.

One gap to know: the help center's calendar guide walks through connecting a Google Calendar only. If your calendar lives in Microsoft 365, confirm during the trial that scheduling works against it, because drafting replies and proposing times are two different integrations. Serif also accepts a cc to [email protected] to hand off scheduling from any thread.

What Serif does better than we do

Price and paperwork. For one person, Serif at $27 to $45 a month is a fraction of Officeagent's $119, and it covers email, meeting notes, scheduling and follow-ups on the entry plan. Its SOC 2 Type 2 report and CASA Tier 2 assessment are stronger third-party attestations than we publish today; if your vendor questionnaire asks for an audited report, Serif has one and we offer a DPA on Enterprise.

Serif also goes deeper on the mailbox itself. True Voice drafting that learns per recipient, a label system you can correct and train, a redraft trigger inside Gmail, and native desktop and iOS apps are all things a dedicated email product should do better than a broader office assistant, and Serif does.

Where Serif and Officeagent actually differ

Serif answers email and writes up meetings. Officeagent runs the office work those messages create. Take a message a small firm gets every week: a client asks to move Thursday's call, wants the signed engagement letter back, and attaches their W-9. Serif drafts a good reply and can propose a new time. Officeagent drafts the reply, books the new slot, files the W-9 where your vendor paperwork lives, updates the tracker row and keeps chasing the signed letter until it arrives, with every outgoing step held for one-click approval. See how documents are filed, how spreadsheets are kept current and how follow-ups are chased to completion.

Billing is the second difference. Serif charges per user on Team and meters an undefined "usage" unit. Officeagent charges one flat price per office ($149 for one person, $399 for up to ten, about 20 percent less yearly) with an allowance of 300 or 2,000 agent actions a month, and an action is counted only when you approve a finished piece of work: an email sent, a meeting booked, a document filed, a row entered. Drafting and redrafting cost nothing and there is no overage invoice. The full plan list is on our pricing page.

Approval is the third. Serif's personal assistant never sends, which is right, but its shared-inbox employee is built to send on its own. Officeagent has no auto-send mode in either configuration; a shared office inbox on the Office plan still routes every reply through a person.

What is the best Serif AI alternative?

It depends which part of Serif you were buying. Every price below comes from the vendor.

If you want the cheapest good drafts and nothing else, Jace is $25 per user per month, or $20 billed yearly, with two inboxes and a SOC 2 Type 1 report. Our Jace AI review covers the inbox and seat rules.

If you want the same drafts-plus-notetaker shape from the vendor Serif compares itself to, Fyxer is $30 per seat on Starter and $50 on Professional, with a one-inbox limit on Starter and a trial that converts without a reminder. Our Fyxer AI review and Fyxer pricing breakdown cover both.

If you want a faster email client rather than an assistant inside your current one, Superhuman and Shortwave replace the inbox itself. See Superhuman compared and Shortwave compared.

If someone on your team enjoys building automations, Lindy connects to more than 1,000 tools on a shared credit pool. Our Lindy AI review explains the credit rules.

If you want the whole field side by side, the best AI email assistant comparison prices Gemini, Copilot, Fyxer, Jace, Superhuman, Shortwave and Missive against each other, and email management software for teams covers the shared-inbox tools Serif's employee product competes with.

If the inbox is only the front door to the work, and you want documents, spreadsheets, data entry and follow-ups handled for a whole office with a person approving every outgoing step, that is Officeagent.

Who should buy Serif, and who should not

Serif is a good purchase if most of these describe you.

• Your bottleneck is your own inbox and calendar, and you want drafts, notes and follow-ups handled for one price under $50.
• You work in Gmail or Outlook and want nothing new to learn; Serif lives inside the mailbox.
• Your clients or insurer ask for a SOC 2 Type 2 report from every tool that reads email, and you want that box ticked on day one.
• You will run the 7-day trial on a real inbox and read the usage figure before it converts.
• You are one to seven people; below about eight seats Team is cheaper than a flat office plan.

Reasons to look elsewhere

Skip Serif, or pair it with something else, if any of these are true. A bigger Serif plan will not fix them.

• The work after the email (filing the attachment, updating the sheet, entering the record, chasing the signature) is what eats your week.
• You need a published, countable usage allowance in the contract rather than a multiplier of an undefined unit.
• You are buying for a shared info@ or billing@ address and company policy requires human approval before any reply goes out.
• Your team is eight or more people; per-user pricing has crossed the flat-price line by then.
• Your calendar is Microsoft 365 and scheduling matters as much as drafting; verify it in the trial first.