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mailbox alternatives · Email

Alternatives to mailbox with a one-time purchase

The mailbox listing shows no one-time purchase. 5 of the 51 other email apps in this directory can be bought with a one-time purchase.

mailbox is a paid product with a free trial, starting at €1 per month, annual payment only (€12 a year, Light). All of them are free or have a free plan.

5 tools · Listings checked up to Oct 9, 2026 · Where the facts come from

How each one differs from mailbox

  1. 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. mailbox starts at €1 per month, annual payment only (€12 a year, Light).
    • Canary Mail has a free plan. mailbox does not, though it has a free trial.
    • Only Canary Mail lists macOS, iOS, Windows and Android apps.
    • Only mailbox lists a web app.
    Canary Mail pricing and details

  2. eM Client

    Desktop email client for Windows and Mac with calendar and chat

    • eM Client starts at $39.95 per year (Personal subscription, up to 3 devices). mailbox starts at €1 per month, annual payment only (€12 a year, Light).
    • eM Client has a free plan. mailbox does not, though it has a free trial.
    • Only eM Client lists Windows, macOS, iOS and Android apps.
    • Only mailbox lists a web app.
    eM Client pricing and details

  3. FairEmail

    Open source, privacy-oriented email client for Android

    • FairEmail starts at $7.49 one-time (pro features, US Google Play in-app purchase). mailbox starts at €1 per month, annual payment only (€12 a year, Light).
    • FairEmail has a free plan. mailbox does not, though it has a free trial.
    • Only FairEmail lists an Android app.
    • Only mailbox lists a web app.
    FairEmail pricing and details

  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). mailbox starts at €1 per month, annual payment only (€12 a year, Light).
    • Mailbird has a free plan. mailbox does not, though it has a free trial.
    • Only Mailbird lists Windows and macOS apps.
    • Only mailbox lists a web app.
    Mailbird pricing and details

  5. 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). mailbox starts at €1 per month, annual payment only (€12 a year, Light).
    • Airmail has a free plan. mailbox does not, though it has a free trial.
    • Only Airmail lists macOS and iOS apps.
    • Only mailbox lists a web app.
    Airmail pricing and details

Common questions

Is there an alternative to mailbox that you buy once?

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

Can you buy mailbox once instead of subscribing?

The mailbox listing shows no one-time purchase. The listing was checked on Oct 6, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Oct 9, 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 mailbox: the alternatives its listing names first, then the tools that share the most features with it.