7 Best Shortwave Alternatives
in 2026 (From AI-Powered to Free)
Shortwave is an AI-native email client that helps you process email smarter with summaries, search, and writing assistance. But you're still the one processing email. Here are 7 alternatives that take different approaches, including one that processes email for you.
What's the best Shortwave alternative in 2026?
- alfred_ ($24.99/month) is best overall: instead of helping you read email smarter, it handles email for you entirely
- Superhuman is best for pure keyboard speed at $30/month
- Spark Mail is the best free option with AI features
- SaneBox is best for email filtering without switching your email client
Why People Look for Shortwave Alternatives
Shortwave is genuinely one of the better AI email clients available. The AI search is impressive, thread summaries save real time, and it feels thoughtfully designed. But there are legitimate reasons people explore alternatives:
- •Gmail-only: if your company uses Outlook or another provider, Shortwave is not an option
- •Still requires manual processing: AI features help you understand email faster, but you still read, decide, and respond to every message
- •No calendar or task management: email doesn't exist in isolation, but Shortwave treats it that way
- •Limited team features: no shared inboxes or collaborative workflows for teams
- •AI features feel incremental: summaries and smart search are nice, but some professionals want a fundamentally different relationship with email
alfred_
AI executive assistant for email, tasks, and calendar
alfred_ is an AI executive assistant that handles email, calendar, and tasks automatically. Where Shortwave gives you AI tools to process email smarter, alfred_ processes email for you: triage, draft replies, task extraction, and a Daily Brief every morning so you know what matters without opening your inbox. Works with Outlook, not just Gmail.
Pros
- Autonomous inbox triage: reads every email, categorizes by urgency, archives noise
- AI draft replies in your voice: review and send with one tap
- Task extraction: pulls action items from emails into your task list
- Calendar management: scheduling, conflicts, and meeting prep
- Daily Brief: wake up to a summary of what happened and what needs attention
Cons
- More expensive than Shortwave ($24.99 vs $7-14/month)
- Not an email client: an AI layer on top of your existing email
Superhuman
Keyboard-first email client built for raw speed
Superhuman is a premium email client designed for raw speed. Where Shortwave leans on AI to make email smarter, Superhuman leans on keyboard shortcuts, split inboxes, and an obsessively polished UX. Every interaction is optimized around the keyboard. Both are Gmail-only.
Pros
- Keyboard shortcuts for every action to hit Inbox Zero 2x faster
- Split inbox to separate different email types
- AI writing assistance and autocomplete
- Read receipts and scheduled send
Cons
- More expensive than Shortwave ($30/month vs $7-14/month)
- Gmail-only like Shortwave, with no Outlook support
Spark Mail
Cross-platform email with team features and a generous free tier
Spark is a smart email client with AI writing assistance, automatic inbox categorization, and team collaboration features. It competes with Shortwave on AI features but adds team workflows and a generous free tier that Shortwave can't match. Unlike Shortwave, it works with Outlook too.
Pros
- Free plan available with a generous free tier
- Smart inbox auto-categorizes into Personal, Notifications, Newsletters
- AI writing assistant for composing and rephrasing emails
- Team shared drafts, email delegation, and assignments
- Cross-platform: Mac, iOS, Android, Windows
Cons
- AI features are less deep than Shortwave, with no AI search or summaries
- You still manage your inbox yourself
SaneBox
Invisible inbox cleanup for any email provider
SaneBox is an email filtering service that works behind the scenes with any email provider: Gmail, Outlook, Yahoo, Apple Mail. It automatically sorts unimportant emails out of your inbox without requiring you to switch clients. No AI chat, no fancy interface, just quiet, effective filtering.
Pros
- Works with any email provider, not Gmail-only
- No client switch required: keep your existing email app
- SaneLater defers non-urgent emails automatically
- SaneBlackHole: drag an email here to never see that sender again
- 14-day free trial
Cons
- No AI search or summaries like Shortwave
- You still process the emails that make it through
Missive
Collaborative email platform for team workflows
Missive is a collaborative email platform with shared inboxes, internal chat on email threads, assignments, and workflow automation. Where Shortwave is built for individual AI-powered email, Missive is built for teams that need to work on email together. Works with Outlook too.
Pros
- Shared inboxes for teams (support@, sales@, info@)
- Internal chat directly on email threads, no side conversations in Slack
- Email assignment and real-time collaboration on drafts
- Rules and automation for routing emails to the right person
- Works with Gmail and Outlook
Cons
- Minimal AI features: Shortwave's AI is far stronger for individuals
- Team-focused: not designed for individual email productivity
Hey
Opinionated email rethink from the makers of Basecamp
Hey is an opinionated email rethink from the makers of Basecamp. Instead of adding AI to existing email patterns, Hey redesigns the entire email experience. New senders go to a screening area. Newsletters get their own feed. Receipts go to a paper trail. A fundamentally different take on email, and one that doesn't rely on AI.
Pros
- The Screener: new senders must be approved before reaching your inbox
- The Feed: newsletters show up as a browsable feed, not inbox clutter
- Paper Trail: receipts and transactional emails stored separately
- Reduces inbox volume structurally through workflow design
Cons
- No AI features at all: opposite philosophy from Shortwave
- Requires a @hey.com address or custom domain
Mailspring
Open-source desktop email client with productivity features
Mailspring is an open-source desktop email client with productivity features like read receipts, link tracking, snooze, and scheduled send. No AI, no monthly subscription for the core features, just a solid, fast email client that works across Mac, Windows, and Linux.
Pros
- Free (open source)
- Cross-platform: Mac, Windows, and Linux (Shortwave is web/mobile only)
- Unified inbox across multiple email accounts
- Read receipts and link tracking
Cons
- No AI features at all
- If Shortwave's AI doesn't add value, this covers the fundamentals
Quick Comparison: Shortwave Alternatives in 2026
| Feature | alfred_Best Overall | Superhuman | Spark Mail | SaneBox | Missive | Hey | Mailspring |
|---|---|---|---|---|---|---|---|
| AI Features | Full (triage, drafts, tasks) | Writing, autocomplete | Writing, categorization | Rule-based | Minimal | ||
| Email Client | No (AI layer) | Yes (Gmail) | Yes | No (works with any) | Yes | Yes | Yes |
| Outlook Support | |||||||
| Starting price | $24.99/mo | $30/mo | Free | $3.49/mo | Free | $99/yr | Free |
How to Choose the Right Shortwave Alternative
The right alternative depends on what's missing from Shortwave for you:
- •Want email handled, not just summarized? alfred_ ($24.99) triages, drafts, and extracts tasks automatically so you review instead of process
- •Prefer speed over AI? Superhuman ($30) is the most polished keyboard-driven email client available
- •Need a free option with AI? Spark Mail gives you AI writing and smart inbox for $0
- •Use Outlook? alfred_, SaneBox, Spark Mail, Missive, and Mailspring all support Outlook (Shortwave doesn't)
- •Need team email workflows? Missive (free-$18) for shared inboxes and collaboration
- •Want to rethink email entirely? Hey ($99/year) redesigns the inbox from scratch without AI
The Bottom Line
Shortwave is a solid AI email client. The search and summaries are genuinely useful, and the price is reasonable. But it's still an email client. You're still the one opening, reading, deciding, and responding to every message.
If you want a fundamentally different approach, alfred_ is the standout. It doesn't help you process email. It processes email for you. For those who want to stay in the email client paradigm, Superhuman offers the best keyboard-driven speed, Spark Mail is the best free option, and Hey offers the most radical rethink of the inbox model.
The question is: do you want to process email smarter, or do you want email processed? Your answer determines which alternative fits.
Our Verdict
alfred_ is the best Shortwave alternative for professionals who want email handled, not just processed smarter
Shortwave helps you process email more intelligently. alfred_ processes email for you: triage, drafts, task extraction, calendar, and a Daily Brief. If you're on Outlook or want calendar and task integration alongside email, alfred_ is the clear upgrade. For budget alternatives, Spark Mail's free tier or SaneBox's passive filtering are the strongest options.
Best for
- Professionals who want email handled autonomously, not just summarized
- Outlook users who can't use Shortwave (Gmail-only)
- Anyone who wants calendar and task management alongside email AI
Not for
- Users who want to stay in a traditional email client paradigm
- Budget-conscious users: Spark Mail and SaneBox start free
Frequently Asked Questions
Why are people looking for Shortwave alternatives?
The main reasons are Gmail-only limitation (no Outlook support), wanting more than AI-assisted email processing (some people want email handled for them entirely), lack of calendar and task management, limited team collaboration features, and the feeling that AI summaries and search are incremental improvements rather than a fundamental change in how email works.
What's the biggest difference between Shortwave and alfred_?
Shortwave helps you process email smarter with AI features like search, summaries, and writing assistance, but you still do the processing. alfred_ processes email for you autonomously: it triages your inbox, drafts replies in your voice, extracts tasks, and manages your calendar. You review and approve instead of reading and deciding. It's the difference between a smarter tool and a digital assistant.
Which Shortwave alternative works with Outlook?
alfred_, SaneBox, Spark Mail, Missive, and Mailspring all work with Outlook. Shortwave and Superhuman are both Gmail-only, which is a dealbreaker for many professionals whose companies use Microsoft 365. SaneBox works with any email provider since it operates at the server level.
Is there a free alternative to Shortwave?
Yes. Spark Mail offers a generous free tier with AI writing assistance and smart inbox categorization. Missive has a free plan for team email. Mailspring is open-source and free for basic features. Even Shortwave itself has a free tier, but if you want more or different features without paying, Spark Mail is the strongest free option.
Which Shortwave alternative is best for teams?
Missive is the best option for teams that need shared inboxes, email assignments, and real-time collaboration on drafts. Spark Mail is a close second with shared drafts and delegation at a lower price. Shortwave and Superhuman are both focused on individual productivity and lack meaningful team features.
Can I try these Shortwave alternatives for free?
Yes. Spark Mail, Missive, and Mailspring all have free tiers you can use indefinitely. alfred_ offers a 30-day free trial. SaneBox has a 14-day free trial. Superhuman and Hey do not have free tiers. Most of these tools let you test them before committing to a paid plan.
Try alfred_
Stop Processing Email. Start Reviewing a Brief.
Shortwave helps you process email smarter. alfred_ eliminates email processing entirely. AI triage, draft replies, task extraction, calendar management, and a Daily Brief: all automatic. $24.99/month with a 30-day free trial. Works while you sleep.
Try free for 30 days