The Jace AI Insider’s Guide

Everything we know about Jace AI in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.

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ToolGPAOctober 2026

Jace AI

The Insider’s Guide

AI email agent with a web inbox for Gmail and Outlook

Every plan, grade, refund rule and rival among email apps, read from Jace AI’s own pages.

Made by Zeta AI, Inc. · checked Oct 9, 2026 · toolgpa.com

2.0GPA

01WelcomeWhat it is, who it suits, its grades and the ten things to know first
02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
03What it doesIts main features, where it runs, what it works with and who makes it
04Where it standsIts grades against its category, and whether to keep it or make your own
05The alternativesThe tools it is most often weighed against, side by side
06Quick answersThe questions people ask about it, each answered in a line or two
07About ToolGPAWho made this guide, what else is on the site, and how to cite it

ToolGPA put this guide together from Jace AI’s own pages, its app-store listings and our grades. Every fact in it is on Jace AI’s page too, where it is kept up to date. Checked Oct 9, 2026.

Part 01 · Overview

Welcome

What it is, who it suits, its grades and the ten things to know first

2.0

GPA, above 2 of the 51 other email apps we grade

Jace is an AI email assistant with its own browser inbox that runs on top of Gmail and Outlook accounts. It labels incoming mail by type and priority, prepares reply drafts using context from attachments, calendars and connected tools such as Slack, and can run workflows that act when matching emails arrive. Plans come with a monthly allowance of credits, and the service is provided by Zeta AI, Inc.

To get you started, here are 9 things to know about Jace AI, taken from its own pages and our grades.

1
Best for email that sets off actions in your other tools
Jace is an AI email agent with its own inbox in the browser, running on top of Gmail or Outlook.
2
Paid plans start at $20 a month
As its pricing page puts it: $20 per month, billed yearly ($25 billed monthly).
3
You can try it first
7-day free trial on Plus and Pro, cancel anytime. The site also states a 30-day money-back guarantee.
4
It runs on Web
Web.
5
AI email drafts
Writes complete reply drafts in your style, using your signature and context from attachments, calendar and Slack. Drafts are saved to Gmail or Outlook, and follow-up drafts can be prepared after a delay.
6
AI labels
Built-in labels such as Needs Reply, Waiting, FYI, To Do and Promotion are applied automatically, and you can describe labels of your own for the AI to apply to matching mail.
7
Rules
Short plain-language instructions, such as which scheduling tool to use or who to CC, that Jace applies when it drafts and acts. Team owners can share a rule with the whole workspace.
8
A 2.0 GPA, above 2 of 51
That is against the other email apps we grade, on value, the free plan, features, ease of use and platforms.
9
Keep it
To replace Jace AI you would be making an email client: sending, receiving, threading and searching years of mail. That is not a weekend's work, with an AI app builder or without one.

Jace AI at a glance

Pricing: Free trial, from $20 per month, billed yearly ($25 billed monthly)
Free plan: No
Free trial: 7-day free trial on Plus and Pro, cancel anytime. The site also states a 30-day money-back guarantee.
Runs on: Web
Made by: Zeta AI, Inc., since 2023
Category: Email Apps
Our grade: 2.0 GPA, fair

The report card

Best for email that sets off actions in your other tools

Jace is an AI email agent with its own inbox in the browser, running on top of Gmail or Outlook. It labels your mail, writes reply drafts with context from attachments, your calendar and Slack, and runs workflows when a certain kind of email arrives. It's $20 a month on yearly billing with no free plan, every job spends credits, Plus stops at 2 inboxes, custom integrations need Pro at $40, and there are no phone apps yet.

ToolGPA report cardJace AIGraded Oct 10, 2026

Subject	Grade	Comment
Value for money	D	Plus is $20 a month billed yearly, $25 monthly, against an $8 middle for this category and a dearest tenth that starts at $25. That buys 10,000 credits, 2 inboxes and chat over 1 year of history. Custom integrations and MCPs need Pro at $40, and the higher credit tiers aren't priced on the page.
Free plan and trial	C	No free plan. Plus and Pro both start with a 7-day free trial you can cancel any time, though nothing on record says whether it asks for a card. The 30-day money-back guarantee isn't a trial.
Features	C	Full reply drafts in your style, labels like Needs Reply applied for you, plain-language rules, and Flows that watch for matching mail then make calendar events or update Notion, Slack and HubSpot. But it runs on a Gmail or Outlook account rather than being one, and every job spends credits.
Ease of use	C	No rating on record. Drafts are saved back into Gmail or Outlook, but you connect accounts, describe your own labels and rules, and keep an eye on a monthly credit allowance.
Platforms and integrations	B	A web inbox and nothing native: no iOS or Android app yet, and the docs suggest keeping the Gmail or Outlook phone app alongside it. It connects to Slack, Google Drive, OneDrive and prebuilt MCP servers for Notion, Linear, GitHub and Salesforce.

Grade point averageFair, out of 4.02.0

An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.

Who Jace AI is for

Fits if you handle a lot of email in Gmail or Outlook and want reply drafts written for you
Works for people who want an incoming email to set something off in Slack, Notion or HubSpot

Who it is not for

Skip it if you do most of your email on your phone, as there are no native apps yet
Tight if you're on Plus, with 2 inboxes, 10,000 credits and 1 year of email history to chat with
Pricey if a tidy inbox is all you want, at $20 a month on yearly billing or $25 monthly
Watch out: higher Pro credit tiers cost more, at prices the page doesn't list
Watch out: there's no free plan, and the 30-day money-back guarantee isn't a trial

Good to know

Good for

Professionals handling a high volume of email in Gmail or Outlook
Teams that want incoming email to trigger actions in Slack, Notion or HubSpot
People managing several inboxes: Pro connects up to 8 accounts

Worth knowing

There are no native iOS or Android apps yet; the docs suggest using the Gmail or Outlook mobile app alongside the web inbox.
There is no free plan: Plus and Pro start with a 7-day free trial.
Usage is metered in monthly credits: 10,000 on Plus and 20,000 on Pro, with higher Pro tiers at prices the page does not list.
Plus is limited to 2 inboxes and 1 year of email history; custom integrations and MCPs are listed under Pro.

Part 02 · Pricing

What it costs

Every plan, the free plan, ways to pay less and how prices have moved

$20

A month to start

Jace AI is a paid product with a free trial, starting at $20 per month, billed yearly ($25 billed monthly).

Plus Plan
$20
per month, billed yearly; $25 billed monthly
10,000 credits a month, up to 2 inboxes with unlimited calendars, chat with 1 year of email history, automatic drafts and labels.
Pro Plan
$40
per month, billed yearly; $50 billed monthly
20,000 credits a month, up to 8 inboxes, chat with 3 years of history, priority support, custom integrations and MCPs. Higher credit tiers cost more.
Enterprise Plan
Custom
For bigger teams: white-glove setup, usage-based pricing and a dedicated account manager, arranged with sales.

Trying it first

7-day free trial on Plus and Pro, cancel anytime. The site also states a 30-day money-back guarantee.

Read from jace.ai on Oct 9, 2026.

Ways to pay less

Annual discount
20% off with yearly billing
Billed yearly, Plus is $20 a month instead of $25 and Pro is $40 instead of $50. The pricing page labels this as 20% off and as saving $60 a year on Plus.
Stated on jace.ai

Part 03 · Features

What it does

Its main features, where it runs, what it works with and who makes it

Place it runs: Web

AI email agent with a web inbox for Gmail and Outlook. Here is what it does, as its own site describes it, and what it covers: AI features, chat assistant, email client, inbox filtering, workflow automation, AI agents.

But it runs on a Gmail or Outlook account rather than being one, and every job spends credits.

From our grade for features

AI email drafts: Writes complete reply drafts in your style, using your signature and context from attachments, calendar and Slack. Drafts are saved to Gmail or Outlook, and follow-up drafts can be prepared after a delay.
AI labels: Built-in labels such as Needs Reply, Waiting, FYI, To Do and Promotion are applied automatically, and you can describe labels of your own for the AI to apply to matching mail.
Rules: Short plain-language instructions, such as which scheduling tool to use or who to CC, that Jace applies when it drafts and acts. Team owners can share a rule with the whole workspace.
AI Flows: A workflow watches for emails that match a description and then drafts replies, creates calendar events, searches the web or updates connected tools such as Notion, Slack and HubSpot.
Chat with your inbox: A chat assistant answers questions from your email history, 1 year on Plus and 3 years on Pro, and can fetch data, create documents and carry out tasks.
Integrations and MCP servers: Built-in connections to Slack, Google Drive and OneDrive, prebuilt MCP servers for tools such as Notion, Linear, GitHub and Salesforce, and support for most remote MCP servers.

Where it runs

What it works with

Gmail
Outlook
Slack
Google Drive
OneDrive
Notion
HubSpot
Salesforce

Jace AI is made by Zeta AI, Inc., and has been around since 2023.

Part 04 · Standing

Where it stands

Its grades against its category, and whether to keep it or make your own

2/51

Other email apps it is graded above

Jace AI's GPA of 2.0 is higher than 2 of the 51 other email apps we grade, and level with 6.

It stands best on platforms and integrations (B, above 15 of 51) and worst on value for money (D, above 0).

Its paid plans start at $20 a month, against a middle price of $4.99 for the category: 39 of the 45 others that charge start lower.

On features, ease of use and platforms it scores 2.3 out of 4. 27 tools score higher and cost less.

Each grade against the category

Every bar is all 52 email apps we grade, cut by the letter each got. Jace AI’s own letter is outlined.

DValue for money
Above 0 of 51
CFree plan and trial
Above 4 of 51
CFeatures
Above 0 of 51
CEase of use
Above 0 of 51
BPlatforms and integrations
Above 15 of 51

Price against what you get

Each dot is one of 50 email apps. Further left costs less; higher up scores better on features, ease of use and platforms. Jace AI is the marked dot.

What paid plans start at, a month (each step along is roughly double) →

Keep it, or make your own?

Whether this is something you could build for yourself with an AI app builder, and what you would give up.

Keep it

To replace Jace AI you would be making an email client: sending, receiving, threading and searching years of mail. That is not a weekend's work, with an AI app builder or without one.

That makes this kind of software worth paying for, not this one in particular: 43 of the 51 other email apps grade higher. It costs $240 a year.

What you could not

An email client: sending, receiving, threading and searching years of mail.
An AI agent, with the models and the safeguards behind it.
Connections to other products, each kept working as those products change.
An AI model, which you can rent by the request but not make.
Filters that read every message as it arrives.
Sharing with other people, which means accounts and invitations.

What this rests on. Jace AI’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.

Part 05 · Alternatives

The alternatives

The tools it is most often weighed against, side by side

Fyxer, Cora, Shortwave, Superhuman Mail and Inbox Zero

The 5 tools Jace AI is most often weighed against, with where each one differs from it.

2.0GPA
Fyxer
Free plan · from $37/mo
AI assistant that sorts email, drafts replies and takes meeting notes.
- Fyxer has a free plan. Jace AI does not, though it has a free trial.
- Jace AI also covers email client, workflow automation and AI agents.
- Fyxer also covers meeting notes, transcription and booking links.
Jace AI and Fyxer compared in full
1.8GPA
Cora
Free trial · from $20/mo
AI email assistant for Gmail that screens, drafts and briefs.
- Jace AI also covers email client, workflow automation and AI agents.
- Cora also covers tasks.
Jace AI and Cora compared in full
2.6GPA
Shortwave
Free plan · from $18/mo
AI email client for Gmail with an assistant, filters and split inbox.
- Shortwave has a free plan. Jace AI does not, though it has a free trial.
- Only Shortwave lists macOS, Windows, iOS and Android apps.
- Jace AI also covers inbox filtering, workflow automation and AI agents.
Jace AI and Shortwave compared in full
2.2GPA
Superhuman Mail
From $25/mo
Keyboard-driven email client for Gmail and Outlook with built-in AI.
- Only Superhuman Mail lists macOS, Windows, iOS and Android apps.
- Only Superhuman Mail lists a browser extension.
- Jace AI also covers chat assistant, inbox filtering, workflow automation and AI agents.
Jace AI and Superhuman Mail compared in full
2.0GPA
Inbox Zero
Free trial · from $18/mo
Open source AI email assistant for Gmail and Outlook.
- Only Inbox Zero lists macOS, Windows, iOS and Android apps.
- Only Inbox Zero lists a browser extension.
- Inbox Zero is open source and self-hostable, according to its own site.
Jace AI and Inbox Zero compared in full

Part 06 · Questions

Quick answers

The questions people ask about it, each answered in a line or two

Questions, each answered in a line or two

The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.

Is Jace AI free?

No, Jace AI is a paid product, but you can try it first. 7-day free trial on Plus and Pro, cancel anytime.

How much does Jace AI cost?

Jace AI lists 3 plans. Plus Plan: $20 per month, billed yearly; $25 billed monthly.

What platforms does Jace AI work on?

Jace AI is available on Web.

Does Jace AI offer any discounts?

Jace AI publicly lists the following: 20% off with yearly billing.

Does Jace AI have an Android app?

No Android app was listed when its pages were read on Oct 9, 2026. Jace AI is listed for Web.

Does Jace AI have an iPhone app?

No iPhone app was listed when its pages were read on Oct 9, 2026. Jace AI is listed for Web.

Is Jace AI open source?

Jace AI is not described as open source on its own site, as read on Oct 9, 2026.

What does Jace AI integrate with?

Jace AI's listing names Gmail, Outlook, Slack, Google Drive, OneDrive, Notion, HubSpot and Salesforce.

Who makes Jace AI?

Jace AI is made by Zeta AI, Inc. It dates from 2023.

What are the alternatives to Jace AI?

The closest alternatives to Jace AI in our directory are Fyxer, Cora, Shortwave, Superhuman Mail and Inbox Zero.

How does Jace AI compare with other email apps?

Jace AI's GPA of 2.0 is higher than 2 of the 51 other email apps we grade, and level with 6.

Is Jace AI good value for money?

ToolGPA grades Jace AI D for value for money. Its paid plans start at $20 a month, against a middle price of $4.99 for the category: 39 of the 45 others that charge start lower.

Could I make my own version of Jace AI?

To replace Jace AI you would be making an email client: sending, receiving, threading and searching years of mail.

Where this guide comes from

The prices, plans, platforms and features were read from Jace AI’s own pages on Oct 9, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Jace AI's own pages on 9 October 2026. Also tested with a demo account on 2026-06-01.

Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Zeta AI, Inc. Prices change, so check jace.ai before you buy.

Part 07 · About

About ToolGPA

Who made this guide, what else is on the site, and how to cite it

3,189

Tools graded, in 94 categories

ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.

Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.

3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries

What else is on toolgpa.com

Scan for the live page

Prices and grades as they are today

Quoting this guide?

Please name ToolGPA and link to the live page, so readers can check the figures for themselves:

ToolGPA, "Jace AI: The Insider's Guide", checked Oct 9, 2026. https://toolgpa.com/tools/jace-ai

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See our other guides

The best-graded email apps after Jace AI, each with an Insider's Guide of its own.

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Everything in this guide is ToolGPA’s own summary of what Jace AI’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Jace AI is a trademark of its owner, and this guide is not made, paid for or approved by Zeta AI, Inc. Prices and plans change: check jace.ai before you buy.