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ImprovMX alternatives · Email

Alternatives to ImprovMX with a one-time purchase

The ImprovMX listing shows no one-time purchase. 7 of the 125 other email apps in this directory can be bought with a one-time purchase.

ImprovMX has a free plan. Paid plans start at $50 per year (Light, up to 5 domains). 6 of them are free or have a free plan.

7 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

How each one differs from ImprovMX

  1. Airmail

    Customizable email client for iPhone, iPad and Mac

    • Airmail starts at $7.99 per month, or $39.99 per year (US App Store in-app prices). ImprovMX starts at $50 per year (Light, up to 5 domains).
    • Only Airmail lists macOS and iOS apps.
    • Only ImprovMX lists a web app.
    • Airmail can be bought with a one-time purchase.
  2. Canary Mail

    AI email client with PGP encryption for Mac, iOS, Windows, Android

    • Canary Mail starts at $36 per year (Growth), shown as $3 per month billed yearly. ImprovMX starts at $50 per year (Light, up to 5 domains).
    • Only Canary Mail lists macOS, iOS, Windows and Android apps.
    • Only ImprovMX lists a web app.
    • Canary Mail is end-to-end encrypted, according to its own site.
  3. eM Client

    Desktop email client for Windows and Mac with calendar and chat

    • eM Client starts at $49.95 per year (Personal subscription, up to 3 devices). ImprovMX starts at $50 per year (Light, up to 5 domains).
    • Only eM Client lists Windows, macOS, iOS and Android apps.
    • Only ImprovMX lists a web app.
    • eM Client can be bought with a one-time purchase.
  4. Mailbird

    Desktop email client for Windows and Mac with a unified inbox

    • Mailbird starts at $34.49 per year (Premium Yearly Plan, US Mac App Store in-app price). ImprovMX starts at $50 per year (Light, up to 5 domains).
    • Only Mailbird lists Windows and macOS apps.
    • Only ImprovMX lists a web app.
    • Mailbird can be bought with a one-time purchase.
  5. FairEmail

    Open source, privacy-oriented email client for Android

    • FairEmail starts at $7.49 one-time (pro features, US Google Play in-app purchase). ImprovMX starts at $50 per year (Light, up to 5 domains).
    • Only FairEmail lists an Android app.
    • Only ImprovMX lists a web app.
    • FairEmail is open source and end-to-end encrypted, according to its own site.
  6. Aqua Mail

    Email app for Android and iOS that handles many accounts at once

    • Aqua Mail starts at $9.99 per month (Premium). ImprovMX starts at $50 per year (Light, up to 5 domains).
    • Only Aqua Mail lists iOS and Android apps.
    • Only ImprovMX lists a web app.
    • Aqua Mail can be bought with a one-time purchase.
  7. Nine

    Exchange ActiveSync email, calendar and tasks app for phones

    • Nine starts at $14.99 one-time license. ImprovMX starts at $50 per year (Light, up to 5 domains).
    • ImprovMX has a free plan. Nine does not, though it has a free trial.
    • Only Nine lists Android and iOS apps.
    • Only ImprovMX lists a web app.

Common questions

Is there an alternative to ImprovMX that you buy once?

Yes. Airmail, Canary Mail, eM Client, Mailbird, FairEmail, Aqua Mail and Nine can be bought with a one-time purchase.

Can you buy ImprovMX once instead of subscribing?

The ImprovMX listing shows no one-time purchase. The listing was checked on Nov 12, 2026 against the pages it cites.

Which of these email apps are free?

Airmail, Canary Mail, eM Client, Mailbird, FairEmail and Aqua Mail are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to ImprovMX: the alternatives its listing names first, then the tools that share the most features with it.