Jace AI Review 2026: Pricing, Limits, and Alternatives

Jace pitches itself as a second brain for email: an assistant that reads your inbox, learns how you write, and has the reply drafted before you open the thread. For a founder or an account executive whose own mailbox eats the first two hours of every day, that is a real promise, and Jace delivers a fair amount of it.

The questions people bring to this page are more specific than the pitch. What does Jace actually cost once the credits run out. How it compares with Fyxer, which does nearly the same job. Whether it can run a shared inbox for a team. And what else is out there if the answer to that last one is no.

We make InboxPilot, an AI email agent for shared team inboxes, so we sit in the "similar apps" list rather than as a neutral reviewer. Read the tradeoffs with that in mind, and confirm every price on the vendor's own page before you budget. Figures here were checked in September 2026.

Key takeaways

• Jace costs $25 a month on Plus and $50 on Pro, or $20 and $40 billed yearly, with credit allowances of 10,000 and 20,000 a month. Usage beyond that is charged on top, so the list price is a floor.
• It drafts but never sends. Every reply waits for you, which is right for a personal assistant and a ceiling on what it can save.
• Jace and Fyxer are the same category. Jace is cheaper per seat and reaches into more tools; Fyxer has the longer record and a meeting notetaker.
• InboxPilot, which is us, is the pick when the inbox is a shared address and the same questions repeat, because it answers from company documents and prices flat instead of per seat.
• Ten people on Jace Pro is $500 a month, or $400 billed yearly. One person on Jace Plus at $25 is cheaper than any paid InboxPilot plan, and that is the honest line between them.
• There are cases where Jace is still the better choice, and a heavy personal inbox is the main one.

Jace AI at a glance

What Jace AI is

Jace connects to your Gmail or Outlook account in about a minute, reads the threads you already have, and starts drafting. The drafts are the product. They are written from the context of the thread and from how you have replied to similar mail before, so on a good day they read like something you would have sent anyway. AI labels sort what arrives into categories you can act on, and the "chief of staff" chat lets you ask questions and complete small tasks across HubSpot, Salesforce, Notion, GitHub, Jira, and Slack without leaving the inbox.

Two design decisions shape everything else. First, Jace is built around one person. Your inbox, your voice, your connected tools. Second, it never sends. Every draft is a suggestion until you press the button. Those decisions make it a safe personal assistant and an awkward fit for a team address, which is the split most of this review turns on.

Jace AI pricing in 2026

Three things to understand before you compare those numbers with anything else.

The credits are the real meter. Every draft, label, and chat query consumes credits, and when the allowance runs out you buy more. A quiet inbox will never touch the cap. A heavy one will, and then the effective price is higher than the plan price. Jace's own tiers scale well past 20,000 credits for a reason.

The yearly discount is 20%. Plus at $20 a month yearly is $240 a year per person. Pro at $40 yearly is $480 a year per person. Paying monthly costs $300 and $600 respectively.

There is a trial but no free plan. Seven days on Plus or Pro is enough to judge draft quality on your own mail, but there is no permanent free tier the way some tools in this category offer.

Jace AI review: what works

The drafting is good for personal correspondence. When the reply depends on what you said last time and how you tend to phrase things, Jace has that context and uses it. People who write a lot of similar-shaped email, follow-ups, scheduling, introductions, will feel the difference in the first week.

The integration breadth is unusual for the price. Asking one assistant to check a HubSpot record, a Jira ticket, and a Slack thread while you are drafting a reply is a genuine time saver for anyone who lives across those systems, and it is not something the pure email assistants attempt.

Setup is close to instant. Connect the account, wait a minute, start reviewing drafts. There is no configuration to get wrong on day one.

Jace AI review: the limits

It is a personal tool with personal-tool economics. The bill is per seat, and every extra hire is another seat. That is fine at one or two people and a real number at ten, which we work through below.

It drafts and stops. Because Jace never sends, the time it saves is the time you would have spent typing. It does not save the time a message sits unanswered because nobody picked it up, which is the cost that matters on a shared address.

Its knowledge is your inbox, not your company. The drafts learn from your threads. They do not read a returns policy, a price list, or a product spec unless one of those happens to be in a thread already. For personal email that rarely matters. For a support@ address it is the whole job.

The credit cap is an unknown until you hit it. Budget for the plan price plus overage rather than the plan price alone if your inbox is busy.

Jace vs Fyxer

Fyxer and Jace are the two names people most often weigh against each other, and they are more alike than different. Both sit on Gmail or Outlook, organise what arrives, and draft in your voice. Neither will send an email on your behalf. Fyxer states that limit plainly on its own site, and Jace works the same way.

The differences are price, breadth, and age. Fyxer's Starter plan is $30 per user per month, or $22.50 billed annually, and Professional is $50, or $37.50 annually, with a 50-user minimum on Enterprise. Jace comes in a little under that at $25 and $50 monthly, or $20 and $40 yearly. Fyxer bundles a meeting notetaker that joins calls, which Jace does not have. Jace has the chat assistant that reaches into HubSpot, Salesforce, Notion, GitHub, Jira, and Slack, which Fyxer does not.

On track record, Fyxer has been in market longer and has more published customer references. Jace is the younger product, which cuts both ways: less history, faster changes.

The honest summary: pick Fyxer if the notetaker matters or you want the more established vendor. Pick Jace if you want the cross-tool assistant and a slightly lower seat price. Pick neither if the inbox in question is a shared team address, because both are built for one person's mail. The Fyxer alternatives roundup covers that side in more depth.

Jace AI alternatives and similar apps

Fyxer

The closest substitute. Same job, same draft-only stance, slightly higher seat price, plus the meeting notetaker. If you are choosing between the two for a personal inbox, the section above is the whole decision.

Superhuman

Superhuman replaces the email client rather than adding an assistant to it. Starter is $30 per user per month and Business is $40, with no free tier. What you are buying is speed: a keyboard-driven interface that people who learn it genuinely move through faster than any browser tab. Its AI features draft in your voice, and like Jace, every reply is reviewed and sent by you. The right pick when personal throughput is the entire problem and you are willing to change clients to get it. The Superhuman pricing breakdown has the seat maths.

Shortwave

A Gmail replacement with AI search and drafting layered on, running roughly $24 to $100 per seat depending on tier. The search is the reason to look at it: asking what you agreed with a customer and getting a real answer beats keyword search by a distance. Gmail only, and the AI worth paying for sits in the higher tiers.

Notion Mail

Worth a line because it still appears in comparison lists. Notion announced in June 2026 that Notion Mail shuts down on September 22, 2026, so it is no longer a place to move to. Our Notion Mail alternatives guide covers what to use instead.

InboxPilot, for the shared inbox (which is us)

InboxPilot is built for the address that belongs to the team rather than to a person: sales@, support@, quotes@, info@. It works inside the Gmail or Outlook inbox you already use, including shared inboxes, with no migration. It reads each incoming email, works out what it is asking, and drafts a reply grounded in your own documents, FAQ, website, and past email through its Knowledge Base, so the answer is the same whether it is you or a colleague on shift.

Drafts wait for approval by default. Auto-send is opt-in per workflow, so a routine order-status reply can go out on its own while anything unusual still gets human eyes. Plain-English Automations handle labels and routing, and it connects to Shopify, Zendesk, Stripe, Notion, and Pipedrive. It is SOC 2 Type II and GDPR compliant, and customer data never trains models.

The pricing is flat by volume with no per-seat fees. Free covers 25 emails processed a month on one inbox, with no card. Starter is $49 a month, or $39 billed annually, for 1,000 emails processed, unlimited shared inboxes, unlimited team members, and three email workflows. Team is $149 a month, or $129 annually, for 5,000 emails and unlimited workflows. Business is $399, or $339 annually, for 20,000 emails with self-hosted deployment and custom integrations. Full detail on the pricing page.

The tradeoff is that it is not a personal productivity tool. There is no redesigned client, no voice matching for your own correspondence, and nothing that makes you individually faster at your own mail. If that is the job, Jace is closer to it than we are.

What a team actually pays

Per-seat pricing is invisible at one seat and very visible at ten, so do the arithmetic before rolling anything out.

Two things the table shows. At one seat Jace wins outright: $25 a month on Plus is cheaper than InboxPilot Starter at $49, and for a personal inbox it is also the better product. At ten seats the shape flips. Ten people on Jace Pro is $500 a month before any credit overage, against a flat $149 for Team, and the eleventh hire on Jace adds another $50 where the flat plan does not move.

The tables compare different jobs, though, and that matters more than the totals. If ten people each need their own inbox drafted in their own voice, Jace is the tool and the cost is the cost. If the ten people share three operational addresses and the mail repeats, per-seat pricing is the wrong shape for the problem regardless of the number.

When Jace is still the better choice

Nothing above should move you off Jace if you are one person and your own inbox is the constraint on your day. It is cheaper than Fyxer and Superhuman at that scale, the drafts are good for personal correspondence, and the cross-tool assistant is a real advantage if you live in HubSpot or Jira as much as in email.

It is also the right pick if you specifically want a system that can never send on your behalf. Some people want that guarantee, and Jace's draft-only design provides it without any configuration.

And if your team already runs on Slack, Notion, Jira, and a CRM, and what you want is one assistant across all of them rather than a specialist in email, Jace's breadth is something none of the email-only tools here replicate.

The case for something else starts at the point where the inbox stops being yours and starts being the team's.

Which one fits

• You are a founder or executive and your personal inbox is the problem. Jace, or Fyxer if you want the notetaker. Both are built for exactly this.
• You want the fastest possible client and will change tools to get it. Superhuman.
• You are on Gmail and your real complaint is that you cannot find things. Shortwave.
• Your team runs sales@, support@, or quotes@ and the same questions arrive daily. InboxPilot. Draft-only personal assistants do not triage a shared mailbox or answer from company documents.
• You want some routine replies to go out without a human touching them. InboxPilot. Opt-in auto-send with approval everywhere else is the core of the product; Jace keeps every send manual.
• You have both problems. Use both. A personal assistant on two executives' inboxes and an email agent on the shared addresses overlap far less than a comparison page implies.

If the piece you are missing is a team inbox that answers its own repetitive email, try InboxPilot free on your real inbox before paying anything.

Related reading

• Best Fyxer AI alternatives: the wider personal-assistant category, with Jace in it.
• Superhuman pricing in 2026: the premium client, seat by seat.
• AI email assistant buyers guide: the evaluation checklist, including what team-grade email AI needs that personal tools skip.
• Best shared inbox software: the category where operational email actually lives.
• RFQ and quote request automation: how quote requests get read, priced, and answered from your own catalog.

Jace plan names, prices, credit allowances, inbox limits, and trial terms were read from Jace's pricing page as reported by coldiq.com, usecarly.com, and aiproductivity.ai in September 2026. Fyxer prices come from fyxer.com/pricing as read on 30 July 2026, including its statement that Fyxer cannot send email on your behalf. Superhuman and Shortwave figures are from vendor pages in July 2026. Notion Mail's shutdown date is from Notion's own help center and TechCrunch's report of 25 June 2026. Pricing in this category changes often; confirm on each vendor's site before budgeting. InboxPilot is the publisher of this article and appears in the comparison above.