Jace AI vs Shortwave

Jace AI

• 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

Shortwave

• Gmail and Google Workspace users who want AI to triage and draft email
• Teams that want to comment on and assign email threads internally
• People who want Google Inbox-style bundles on top of Gmail

Jace AI

• 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.

Shortwave

• Sign-in requires Gmail or Google Workspace. Microsoft 365 and Exchange are not supported, and other providers only work by forwarding mail to Gmail.
• Paid plans start at $18 per seat a month for individuals and $30 on the business plans, and AI usage on every plan is capped by a daily quota.
• The Business plan limits AI search to 5 years of history and allows 3 AI filters.
• Native apps cover Mac, Windows, iOS and Android; other platforms rely on the web app.

Jace AI

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.

Shortwave

AI assistant

Prompt the assistant to organize the inbox, write in your own voice, search mail or schedule a meeting. It can also browse the web and analyze attachments.

AI filters

Describe a rule in plain English and it labels, stars or archives incoming mail. Business includes 3 AI filters, Premier 10 and Max 50.

Split inbox and bundles

Divide the inbox into tabs by sender, label or custom query, and triage promotions, newsletters and updates in bulk as bundles.

AI search

Ask questions across your mail instead of keyword searching. Business reaches back 5 years and reads up to 50 threads per search; Premier removes the history limit.

Team collaboration

Share a live thread with teammates, discuss it in private comments, assign emails with a done status, and keep shared labels, snippets and saved prompts.

Scheduling and follow-ups

The assistant checks availability, creates calendar events and writes scheduling emails. Snooze, delivery schedules and no-reply reminders are also included.

Jace AI

• 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 PlanCustom

  For bigger teams: white-glove setup, usage-based pricing and a dedicated account manager, arranged with sales.

Shortwave

• Free$0

  Basic AI with a limited usage quota, 90 days of standard and AI search history, and up to 15 threads per AI search.

• Pro$18

  per seat / month

  For individuals: standard AI, full standard search history, 3 years of AI search history, AI web browsing and personalized AI writing.

• Business$30

  per seat / month

  Standard AI with a daily usage quota, 5 years of AI search history, up to 50 threads per AI search and 3 AI filters.

• Premier$45

  per seat / month

  Advanced AI with twice the Business usage, unlimited AI search history, up to 100 threads per AI search and 10 AI filters.

• Max$120

  per seat / month

  Expert AI with six times the Business usage, up to 150 threads per AI search and 50 AI filters.

Jace AI

• 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.

Shortwave

No public discounts listed.