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Head-to-head · AI Email Assistants

Superhuman Mail vs Spike

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Superhuman Mail #7 in AI Email Assistants 8.2/10 Paid ✓ 0 of 5 features Visit Superhuman
Spike #8 in AI Email Assistants 7.9/10 Free plan Free plan✓ 0 of 5 features Visit Spike

Superhuman Mail leads on 0 checks, Spike on 2, and 0 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSuperhuman Mail · 8.2/10
  • Lowest starting priceSpike · $4/user/mo
  • Free planonly Spike

Superhuman Mail scores higher on our rubric for ai email assistants: 8.2 against 7.9 out of 10; our editors rank them #7 and #8.

Spike offers free plan; Superhuman Mail doesn't. Spike is cheaper to start at $4/user/mo against $25/user/mo.

Superhuman Mail is the better fit for teams seeking premium email productivity. Spike is the better fit for low-cost email and calendar workspace.

  • Superhuman Mail fits best

    Teams seeking premium email productivity

  • Spike fits best

    Low-cost email and calendar workspace

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Side by side

Feature Superhuman Mail 8.2/10 Visit ↗ Spike 7.9/10 Visit ↗
At a glance
Editor score 8.2 7.9
Ranking #7 in AI Email Assistants #8 in AI Email Assistants
Best for Teams seeking premium email productivity Low-cost email and calendar workspace
Pricing model Paid Free plan + paid
Starting price $25/user/mo $4/user/mo (best)
Free plan — ✓ (best)
Free trial — —
Deployment Cloud, Desktop, Mobile, Browser extension Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, iOS, Android, Chrome extension Web, Windows, macOS, iOS, Android
Support Email, Docs Email, Live chat, Docs
Integrations 11 integrations 12 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Superhuman Mail 0/5 · Spike 0/5
Inbox triage Not checked yet Not checked yet
AI reply drafting Not checked yet Not checked yet
Automatic sending Not checked yet Not checked yet
Thread summaries Not checked yet Not checked yet
Follow-up actions Not checked yet Not checked yet
Specs
Email platforms Not checked yet Not checked yet
Our review
Pros
  • AI drafting and inbox organization support faster email workflows
  • Split Inbox, reminders and scheduled sending aid follow-up triage
  • Calendar tools, offline access and team collaboration extend beyond email
  • Chat-style threads and a unified inbox organize multiple email accounts.
  • AI drafting and conversation summaries are available on free plans.
  • Calendar tools, notes, tasks and calls sit alongside email.
Cons
  • No free plan; Starter begins at $25 per member per month, billed annually
  • Business features such as Auto Drafts and Ask AI require the $33 tier
  • Works with Gmail or Microsoft 365-hosted accounts rather than a unified inbox
  • The free Email App plan limits unified inbox use to one email address.
  • The $4 Team plan and $6 Pro plan serve different product offerings.
  • Video call recording and SAML-SSO are marked SOON on Business.
Our verdict

For individuals and teams working in Gmail or Microsoft 365, Superhuman Mail combines an email client with AI-assisted drafting, inbox organization, follow-up tools and calendar functions. Its Split Inbox is designed to help triage…

Read the review →

Spike combines email, calendar tools and collaboration features in a chat-style workspace. It is aimed at individuals who want to manage existing email accounts in one app, as well as teams that need shared inboxes and team spaces. AI…

Read the review →
  1. Superhuman MailAI Email Assistants 8.2Paid
  2. SpikeAI Email Assistants 7.9Free plan

Strengths and trade-offs

  • Superhuman Mail — where it wins

    • AI drafting and inbox organization support faster email workflows
    • Split Inbox, reminders and scheduled sending aid follow-up triage
    • Calendar tools, offline access and team collaboration extend beyond email

    Where it doesn't

    • No free plan; Starter begins at $25 per member per month, billed annually
    • Business features such as Auto Drafts and Ask AI require the $33 tier
    • Works with Gmail or Microsoft 365-hosted accounts rather than a unified inbox

  • Spike — where it wins

    • Chat-style threads and a unified inbox organize multiple email accounts.
    • AI drafting and conversation summaries are available on free plans.
    • Calendar tools, notes, tasks and calls sit alongside email.

    Where it doesn't

    • The free Email App plan limits unified inbox use to one email address.
    • The $4 Team plan and $6 Pro plan serve different product offerings.
    • Video call recording and SAML-SSO are marked SOON on Business.

More comparisons

All AI email assistants comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update