Shortwave Communication AI-powered inbox management... 4.4 ✓ Free 3h/wk saved Free 4 plans

Shortwave Review

// Communication Updated: Feb 2026
Top AI Email Client

Shortwave is an AI-native email client built by ex-Google Firebase engineers that replaces your inbox with Ghostwriter AI that learns your writing voice, intelligent email bundling, and the Tasklet automation platform. With a free tier and affordable paid plans, Shortwave helps professionals reach Inbox Zero 45% faster through its structured workflow, bringing Slack-like collaboration to email for teams and power users alike.

01

Pricing Breakdown

Business
$24 /month
  • Standard intelligence (Claude Sonnet)
  • 5 years of AI search history
  • Up to 3 AI filters
  • Up to 50 threads per AI search
  • Team collaboration features
  • 14-day free trial
Recommended
Premier
$36 /month
  • Advanced intelligence with adaptive thinking
  • 2x more AI usage than Business
  • Unlimited AI search history
  • Up to 10 AI filters
  • Up to 100 threads per AI search
  • Premium support
Max
$100 /month
  • Expert intelligence (Claude Opus with adaptive thinking)
  • 6x more AI usage than Business
  • Up to 50 AI filters
  • Up to 150 threads per AI search
  • Live 1:1 training
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Save up to 18% with annual billing. Pro drops to $14/month and Business to $24/month when billed annually. More plans are available, see our detailed Pricing Page for more information.

02

Feature Analysis

Shortwave is evaluated here across five critical dimensions for an AI email client: AI writing quality, inbox organization, automation capabilities, team collaboration, and value for money.

AI Writing

Excellent

Ghostwriter learns your personal writing voice from sent emails and generates contextual one-click replies

Inbox Organization

Excellent

Intelligent bundling groups related messages automatically with AI-powered search across full history

Value for Money

Excellent

Free tier plus competitive pricing from $8.50/month undercuts Superhuman significantly

Automation

Good

Tasklet platform connects email workflows to Slack, Notion, Asana, and HubSpot effectively

Team Collaboration

Good

Channels, mentions, typing indicators bring Slack-like collaboration to email but limited to Business tier

Key Capabilities

  • ✓ Ghostwriter AI learns your personal writing voice from sent emails
  • ✓ One-click AI replies that match your tone and style
  • ✓ Intelligent email bundling groups related messages automatically
  • ✓ AI-powered search across entire email history
  • ✓ Tasklet automation platform connects inbox to Slack, Notion, Asana, HubSpot
  • ✓ Team features: channels, mentions, typing indicators, presence
03

The Honest Truth

// TL;DR
Shortwave replaces your Gmail client with AI-powered email management. Ghostwriter AI writes replies in your voice, smart bundling organizes your inbox, and Tasklets automate workflows across Slack, Notion, and HubSpot. Starts free with affordable paid upgrades.
Key Strengths
  • Ghostwriter learns your voice - AI analyzes sent emails to replicate your tone, vocabulary, and style for one-click contextual replies
  • Free tier available - Try core AI features including summaries, bundling, and keyboard shortcuts without paying anything
  • Intelligent email bundling - Groups related messages automatically so your inbox shows conversations, not individual emails
  • Tasklet automation platform - Connect email workflows to Slack, Notion, Asana, and HubSpot without leaving your inbox
  • Built by ex-Google engineers - Firebase team background means fast performance and reliable infrastructure from day one
Notable Limitations
  • Gmail and Google Workspace only - No support for Outlook, Yahoo, or other email providers - strictly Google ecosystem
  • Limited review track record - Not listed on or yet, making it harder to validate enterprise reliability
  • No built-in calendar - Lacks integrated calendar features that competing email clients like Superhuman offer
  • Team features locked to higher tiers - Channels, mentions, and presence indicators require the $29/month Business plan
04

Who Should Use This

Gmail Power Users

Best Fit

Reach Inbox Zero 45% faster with AI bundling, Ghostwriter replies, and keyboard shortcuts

Small Team Leads

Best Fit

Replace scattered email threads with Slack-like channels, mentions, and typing indicators

Workflow Automators

Good Fit

Connect email to Slack, Notion, Asana, and HubSpot through Tasklet automations

Budget-Conscious Freelancers

Good Fit

Get AI email features on the free tier or Personal plan at $8.50/month vs Superhuman at $25/month

Enterprise IT Departments

Not Ideal

No enterprise compliance features, SSO, or admin controls for large-scale deployment

Outlook and Exchange Users

Not Ideal

Gmail and Google Workspace only - no Microsoft email provider support available

05

vs. Competition

ToolRatingPriceFree TierKey FeatureNoteBest For
Shortwave
★ 4.4 Free ✓ AI Writing Inbox Organization AI-powered inbox management for Gmail
Superhuman
★ 4.5 From $30 ✗ AI Email Writing Keyboard Efficiency High-volume email professionals
Spark Mail
★ 4.2 From $10 ✓ Inbox Organization Cross-Platform Experience Cross-platform email for freelancers
SaneBox
★ 4.8 From $4.92 ✗ Ease of Setup Client Compatibility Professionals drowning in email overload
Grammarly
★ 4.6 $30 ✓ Cross-Platform Integration Writing Assistance Fast, polished business writing
Zoho Mail
★ 4.4 Free ✓ Zoho Ecosystem Integration Price to Value Small business teams
06

Frequently Asked Questions

Ghostwriter analyzes your sent emails to understand your tone, vocabulary, greetings, sign-offs, and sentence structure. Over time it builds a personalized writing profile so AI-generated replies sound like you wrote them. The more emails you send, the more accurate it becomes.
Shortwave currently supports Gmail and Google Workspace accounts only. There is no Outlook, Yahoo, or Exchange support. If your organization uses Microsoft email, you would need to look at alternatives like Superhuman which supports both Gmail and Outlook.
Tasklets are Shortwave's automation platform that connects your email workflows to external tools. You can create automations that trigger actions in Slack, Notion, Asana, and HubSpot based on email events. For example, a Tasklet can automatically create a Notion task when you receive an email from a specific sender.
Yes, Shortwave offers a free tier with basic AI summaries, email bundling, keyboard shortcuts, and 90 days of search history. The free plan includes a mandatory 'Sent with Shortwave' signature on outgoing mail. Paid plans start at $8.50/month for the Personal tier which removes branding.
Both are AI-powered email clients, but they target different users. Shortwave starts free and offers Ghostwriter AI with team collaboration features at lower price points ($8.50-$43/month). Superhuman starts at $25/month with no free tier but provides 100+ keyboard shortcuts and CRM integrations. Shortwave is Gmail-only while Superhuman supports both Gmail and Outlook.
07

ROI Calculator

Calculate your potential ROI with Shortwave
Example calculation - actual pricing varies by team size. Contact sales for quote.

ShortwaveEmail Time Savings Calculator

// Calculate Your Inbox Time Savings
// Your Email
Your hourly rate$40
Emails per day20
Minutes saved per email2m
Monthly subscription$500
Calculation Assumptions:
- 20% faster email processing through AI bundling and Ghostwriter reply assistance
- Based on 30 emails per day requiring active engagement
- Ghostwriter AI reduces reply composition time by learning personal writing patterns
// Your Results
Annual ROI
0%
Monthly Savings
$0
Annual Savings
$0
Cost/Use
$0.00
Efficiency Gain
0%
Time reclaimed0h / month
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