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Mimestream alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Mimestream: gmail and Google Workspace accounts only, and mac only, with iOS still in beta. We ranked 5 alternatives by how directly each one replaces Mimestream, then by reviews, real visits and how recently each app's facts were checked against its own website. Superhuman Mail currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Superhuman Mail logoSuperhuman MailPaidNoWeb, macOS, Windows +23 of 366.5
2Shortwave logoShortwavePaidNoWeb, macOS, Windows +23 of 362.6
  1. Superhuman Mail logo

    1. Superhuman MailTop pick

    Best for: Executives and heavy email users on Gmail or Outlook who value speed over price

    PaidWeb, macOS, Windows, iOS, Android

    66.5

    score / 100

    Why switch from Mimestream

    A premium Gmail client with AI and a split inbox, on more platforms.

    Pros

    • Very fast, keyboard-first workflow
    • Split inbox and reminders keep important threads visible
    • Strong AI drafting and inbox search

    Cons

    • Expensive, with no free plan
    • Only works with Gmail and Microsoft accounts
    • Now sold as part of a wider suite
    Visit Superhuman Mail Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Superhuman Mail a good Mimestream alternative?

    Verified facts

    3 of 3 verified
    Supported accounts
    Gmail and Outlook
    Checked Oct 25, 2026superhuman.com(opens source in a new tab)
    Split Inbox
    Yes
    Checked Oct 25, 2026superhuman.com(opens source in a new tab)
    Business plan (includes Mail)
    $33/member/month billed annually
    Checked Oct 25, 2026superhuman.com(opens source in a new tab)
  2. Shortwave logo

    2. Shortwave

    Best for: Gmail users who want an AI assistant deeply built into their inbox

    PaidWeb, macOS, Windows, iOS, Android

    62.6

    score / 100

    Why switch from Mimestream

    Gmail-focused client with AI triage and apps beyond the Mac.

    Pros

    • AI search and drafting across your whole mail history
    • Bundles and done-based triage inspired by Inbox by Gmail
    • Shared threads and comments for teams

    Cons

    • Gmail and Google Workspace only
    • Per-seat pricing is high for individuals
    • Relies heavily on AI processing of your mail
    Visit Shortwave Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Shortwave a good Mimestream alternative?

    Verified facts

    3 of 3 verified
    Free trial
    14 days
    Checked Oct 25, 2026shortwave.com(opens source in a new tab)
    Business plan
    $30 per seat/month
    Checked Oct 25, 2026shortwave.com(opens source in a new tab)
    Premier plan
    $45 per seat/month
    Checked Oct 25, 2026shortwave.com(opens source in a new tab)

The best Mimestream alternative for…

The highest-ranked app in this list for each need.

Superhuman Mail logo

Best Mimestream alternative for most people

Superhuman Mail

A premium Gmail client with AI and a split inbox, on more platforms.

Apple Mail logo

Best Mimestream alternative for a free option

Apple Mail

Free and built in, if you can live with how it handles labels.

Spark logo

Best Mimestream alternative for a free plan you can upgrade

Spark

Cross-platform and free to start, supporting non-Gmail accounts too.

Shortwave logo

Best Mimestream alternative for Mac

Shortwave

Gmail-focused client with AI triage and apps beyond the Mac.

Superhuman Mail logo

Best Mimestream alternative for Windows

Superhuman Mail

A premium Gmail client with AI and a split inbox, on more platforms.

Superhuman Mail logo

Best Mimestream alternative for iPhone and Android

Superhuman Mail

A premium Gmail client with AI and a split inbox, on more platforms.

Superhuman Mail logo

Best Mimestream alternative for working in the browser

Superhuman Mail

A premium Gmail client with AI and a split inbox, on more platforms.

Mimestream alternatives: common questions

What is the best alternative to Mimestream?

Superhuman Mail ranks first right now. A premium Gmail client with AI and a split inbox, on more platforms. Shortwave and Apple Mail follow it in our ranking.

Is there a free alternative to Mimestream?

Yes. Apple Mail (free), Spark (free plan + paid) and Airmail (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Mimestream?

None of the 5 alternatives in this list is open source.

Why do people switch from Mimestream?

The complaints we hear most: gmail and Google Workspace accounts only; mac only, with iOS still in beta; subscription with no free tier.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Mimestream, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.