Superhuman changed how people think about email. It proved that a fast, well-designed email client is worth paying for — The Verge called it "a slick, flashy email app with a cult-like following." But at $25/month per user (billed annually), it's one of the most expensive email clients on the market, and in 2026, you have more options than ever.
Whether you're looking for a lower price, different AI features, or platform support Superhuman doesn't offer, this guide covers the best alternatives available today. (For a broader look at the category, see our Best AI Email Apps in 2026 roundup.)
We tested each tool hands-on and compared them across the things that actually matter: AI capabilities, pricing, platform availability, and what makes each one unique.
Quick Comparison
| App | Price | AI Features | Platforms | Gmail Support | Best For |
|---|---|---|---|---|---|
| FiloMail | Free email / paid AI | Summary, To-dos, Smart Labels, AI Chat | iOS, Mac, Android, Windows | ✅ | Action-oriented professionals |
| Spark Mail | Free (Plus $10/mo) | AI Compose, Summary | iOS, Mac, Android, Windows | ✅ | Team email collaboration |
| Shortwave | Free (Personal $8.50/mo) | AI Search, Summary, Labels | Web, iOS, Android, Mac | ✅ | AI-first power users |
| Canary Mail | Free (Growth $3/mo) | AI Compose, Copilot | iOS, Mac, Android, Windows | ✅ | Privacy-focused users |
| Mimestream | $49.99/year | None | Mac only | ✅ | Native Mac experience |
| Outlook (New) | Free | Copilot (M365) | All | ✅ | Microsoft ecosystem users |
| Gmail (Default) | Free | Gemini | Web, Mobile | ✅ | If you prefer staying in Gmail |
What to Look for in a Superhuman Alternative
Before diving into specific tools, here's what to consider when switching:
- AI that does more than write replies. In 2026, every email app has AI drafting. Research consistently shows professionals spend 5 to 15 hours per week managing email. The real question is: does the AI help you act on your emails, or just respond to them?
- Price-to-value ratio. Superhuman costs $300/year (Starter plan). That's worth it for some people. But if you're paying for features you don't use, it's not a good deal — it's a habit. It's also worth noting that some alternatives (like FiloMail and Spark) offer fully functional free tiers, so you only pay when you need more.
- Platform coverage. Superhuman now covers iOS, Mac, Android, and web. But not all alternatives do. Check what you need.
- Migration friction. Since most of these tools sit on top of Gmail's API, switching is usually painless. Your emails stay in Gmail; you're just changing the window you look through.
1. FiloMail: free email with paid AI when you need it
FiloMail brings Gmail, Outlook, and IMAP accounts into one email app on iOS, Android, macOS, and Windows. The Free plan covers basic email and multiple accounts; it does not include AI.
AI summaries, to-do extraction, writing, translation, smart labels and filters, automations, and Filo AI require paid access. Plus costs $9.9/month and includes $12 in monthly AI credit. You can also buy prepaid credit without a subscription at $1 per credit, with no automatic renewal. If you have both, Plus credit is used before prepaid credit.
Check current plans and pricing or download FiloMail.
2. Spark Mail: Best for Team Email Collaboration
Pricing: Free / Plus $10/month ($120/year) / Pro $20/month ($240/year) Platforms: iOS, macOS, Android, Windows Best for: Teams that share inboxes or collaborate on email responses
What Makes It Different
Spark's biggest differentiator isn't AI; it's collaboration. Shared inboxes, email delegation, internal comments on threads, and team templates make it the go-to choice for teams that treat email as a group activity. Spark has been around since 2015 and has built a loyal following, particularly among Apple users.
Key Features
- Spark +AI: AI compose, rephrase, translate, and summarize. Solid but not groundbreaking in 2026.
- Shared Inbox & Delegation: Assign emails to team members, comment privately on threads, share drafts before sending.
- Smart Inbox: Categorizes email into Personal, Notifications, and Newsletters. Less customizable than FiloMail's Smart Labels.
- Email Scheduling & Follow-up Reminders: Set-and-forget scheduling with nudge reminders.
- Multi-Account Support: Works with Gmail, Outlook, iCloud, Yahoo, and any IMAP provider.
How It Compares to Superhuman
Spark is significantly cheaper than Superhuman for teams, and the collaboration features have no equivalent in Superhuman's individual-focused product. However, Spark's AI feels more like an add-on than a core experience: it helps you write, but doesn't fundamentally change how you process email.
Good if: You need team email features. Not the best if you're an individual looking for AI-powered productivity.
3. Shortwave: Best AI-First Email Experience
Pricing: Free / Personal $8.50/month / Business $24/month / Premier $36/month (billed annually) Platforms: Web, iOS, Android, Mac Best for: Power users who want the most aggressive AI email automation
What Makes It Different
Built by ex-Google engineers (the team behind Google Inbox), Shortwave treats email like a chat-style interface with AI deeply integrated into every interaction. It bundles related emails automatically, and its AI assistant can search, summarize, and draft across your entire inbox.
Key Features
- AI Assistant: Natural language search and actions across your inbox. "What did Sarah say about the Q3 budget?" actually works.
- Auto-Bundling: Groups related emails (newsletters, GitHub notifications, etc.) into collapsible bundles without manual rules.
- AI Labels & Priorities: Automatically categorizes and ranks emails by importance.
- Markdown Support: Compose emails in markdown with rich formatting.
How It Compares to Superhuman
Shortwave is the closest to Superhuman in philosophy (speed and keyboard-centric design) but with deeper AI integration. The Personal plan at $8.50/month is cheaper than Superhuman, though the Business plan at $24/month is comparable. The main downside: it's still primarily web-based, and the mobile apps feel secondary.
Good if: You want AI that's deeply woven into email, not bolted on. Less ideal if you live on your phone.
4. Canary Mail: Best Budget Option with Privacy Focus
Pricing: Free / Growth $36/year (~$3/month) / Pro+ $100/year Platforms: iOS, macOS, Android, Windows Best for: Privacy-conscious users who want AI features without breaking the bank
What Makes It Different
Canary Mail leads with privacy: end-to-end encryption, on-device AI processing, and a Sequoia-backed security pedigree. PCMag noted that it "stands out among email clients thanks to privacy-minded encryption features and built-in AI." The AI features are capable if not spectacular, and the pricing is the most affordable on this list.
Key Features
- Copilot AI: Email drafting, summarization, and prioritization.
- End-to-End Encryption: Built-in PGP and SecureSend for encrypted email.
- Read Receipts & Link Tracking: Know when your emails are opened.
- Unified Inbox: Supports Gmail, Outlook, iCloud, Yahoo, and IMAP.
- One-Time Purchase Option: Rare in 2026. You can buy a lifetime license.
How It Compares to Superhuman
Canary is the budget pick. At $3/month (Growth plan), you get 80% of what most people need from an AI email client. The AI isn't as sophisticated as Superhuman or FiloMail, but if your needs are straightforward (draft help, summaries, and good organization), it does the job.
Good if: Price and privacy are your top priorities.
5. Mimestream: Best Native Mac Gmail Client
Pricing: $49.99/year (~$4.17/month) Platforms: Mac only Best for: Mac users who want a beautiful, fast, native Gmail experience
What Makes It Different
Mimestream is a love letter to macOS. Built entirely in Swift, it uses the Gmail API directly (not IMAP), which means it supports Gmail features like labels, categories, and search operators natively. MacStories called it "the perfect email app for Gmail users on the Mac." It's widely regarded as one of the fastest Gmail clients on Mac.
Key Features
- True macOS Native: Built in Swift with full system integration (notifications, keyboard shortcuts, Quick Look, Shortcuts app).
- Gmail API Integration: Labels, categories, and search work exactly like web Gmail.
- Multiple Account Support: Multiple Gmail and Google Workspace accounts.
- Fast. Really Fast. Opens instantly, searches instantly, scrolls like butter.
How It Compares to Superhuman
Mimestream is Superhuman's opposite in philosophy: no AI, no productivity gimmicks, just a beautifully fast email client. If you love Gmail but hate using it in a browser, and you don't need AI features, Mimestream is the answer.
Good if: You're on Mac, you love native apps, and you don't need AI. Not for you if you want AI-powered workflows or use Windows/mobile.
6. Outlook (New): Best for Microsoft Ecosystem
Pricing: Free (Copilot requires Microsoft 365 subscription) Platforms: Windows, Mac, iOS, Android, Web Best for: Anyone already in the Microsoft 365 ecosystem
What Makes It Different
The new Outlook is Microsoft's unified email client, replacing the legacy Win32 app and Windows Mail. With a Microsoft 365 subscription, you get Copilot integration for AI-powered email features.
Key Features
- Copilot Integration: Summarize threads, draft replies, catch up on long conversations.
- Unified Experience: Same app across all platforms.
- Calendar Integration: Best-in-class calendar built right into the email client.
- Free to Use: The base email client is free; AI features require M365.
How It Compares to Superhuman
Outlook is free and works everywhere, which Superhuman can't match. But the email experience itself is more utilitarian than delightful. Copilot is powerful but generic: it works the same way in Word, Teams, and Outlook. It doesn't feel like an email-specific AI.
Good if: You already pay for Microsoft 365 and want "good enough" AI email.
7. Gmail with Gemini: Best for Staying Put
Pricing: Free (Gemini features rolling out to all users) Platforms: Web, iOS, Android Best for: People who don't want to switch at all
What Makes It Different
Google is steadily adding Gemini AI features directly into Gmail. In January 2026, they announced that Gmail is "entering the Gemini era" with AI Overviews, Help Me Write, and Suggested Replies. If you're mostly satisfied with Gmail and just want some AI help, this might be all you need.
Key Features
- Gemini Summarization: Summarize long threads with one click.
- Help Me Write: AI drafting directly in the compose window.
- Smart Reply & Smart Compose: The originals, now enhanced with Gemini.
- Google Ecosystem: Calendar, Drive, Meet, all integrated natively.
How It Compares to Superhuman
Gmail is free and familiar. The AI features are improving but still feel like additions to an existing product rather than a reimagined experience. You won't get automatic to-do extraction, smart categorization, or conversational AI search. But you also won't pay a dime.
Good if: You're fine with Gmail and just want incremental improvements.
The Verdict: Which Superhuman Alternative Should You Choose?
Here's the honest recommendation based on what you actually need:
Choose FiloMail if you want an email client with optional paid AI for summaries, tasks, and writing. Basic email is free; AI access is available through Plus or prepaid credits.
Choose Spark if you work in a team that collaborates on email. Nothing else matches its shared inbox and delegation features.
Choose Shortwave if you want the most AI-forward experience and don't mind a web-first interface.
Choose Canary Mail if privacy is non-negotiable and you want the lowest possible price for AI email features.
Choose Mimestream if you're on Mac, love native apps, and don't need AI.
Choose Outlook if you're already in the Microsoft ecosystem and want AI included with your existing subscription.
Stay with Gmail if you're mostly satisfied and don't want to change.
Frequently Asked Questions
Is Superhuman worth $25 a month?
Compare current subscription prices, AI allowances, and the features you actually use. FiloMail offers both a Plus subscription and standalone prepaid AI credits.
Can I use these alternatives with Gmail?
Yes. Every alternative on this list works with Gmail. Most use the Gmail API or IMAP, so your emails stay in Gmail. You're just using a different interface to access them.
Do I lose my emails if I switch?
No. Since these tools connect to your existing Gmail account, all your emails remain in Gmail. You can switch between tools freely without losing anything.
Which alternative has the best AI features?
For action-oriented AI (turning emails into tasks and workflows), FiloMail leads. For conversational AI search, Shortwave is the strongest. For AI writing assistance, Superhuman and Spark are both solid. It depends on what kind of AI help you need most.
What's the cheapest Superhuman alternative with AI?
FiloMail is a free alternative for basic email. Its AI features are paid, through Plus or prepaid credits. Check each provider’s current plan before comparing AI costs.
Further Reading
- Shortwave vs. Superhuman: Which is better? – Zapier's detailed comparison of two leading AI email clients
- The Best Email Clients We've Tested for 2026 – PCMag's comprehensive roundup
- Why FiloMail Isn't a 'Better Gmail' (And Why It Matters) – Our take on why AI-native email is a different category entirely
- Best Email Apps for iPhone in 2026 – Our top picks for mobile email
Product Manager at FiloMail
