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Apps with Unified inbox

5 apps

Top Unified inbox apps ranked by the community

  1. Thunderbird

    Thunderbird is a free and open-source email client for Windows, macOS and Linux, with an Android app based on K-9 Mail. It manages multiple accounts in a unified inbox and includes a calendar, address book, chat and built-in OpenPGP encryption. Add-ons and themes customize it extensively, and it is developed by MZLA Technologies, a Mozilla Foundation subsidiary funded by user donations.

    9 Thunderbird alternatives

    Pros

    • Free and open source, funded by donations rather than ads
    • Built-in OpenPGP encryption, calendar and address book
    • Highly customizable with add-ons and themes

    Cons

    • Interface feels busier than minimalist modern clients
    • Getting the most out of it takes some setup and add-ons
    Cost / License
    FreeOpen source
    Categories
    Email Clients & Providers
    Platforms
    WindowsMacLinuxAndroid
    Features
    Ad-freeCalendar viewEnd-to-end encryptionOffline modePlugins & extensionsUnified inbox
    Visit websiteMore about Thunderbird

  2. Spark

    4.6(82.7K) · App Store

    Spark is an email client from Readdle that works with Gmail, Outlook, iCloud and other IMAP accounts on Mac, Windows, iPhone and Android. Its smart inbox separates personal mail, notifications and newsletters, and it supports send later, snoozing, a gatekeeper for new senders and AI writing help. Teams can share email threads, comment on them privately and draft replies together.

    11 Spark alternatives

    Pros

    • Smart inbox separates personal mail, notifications and newsletters
    • Shared threads and private comments for team email
    • Gatekeeper screens new senders before they reach the inbox

    Cons

    • Sync relies on Readdle’s servers, which raises privacy questions
    • AI and team features require a paid plan
    Cost / License
    FreemiumProprietary
    Categories
    Email Clients & Providers
    Platforms
    WindowsMaciPhoneAndroid
    Features
    AI assistantSend laterTeam collaborationUnified inbox
    Visit websiteMore about Spark

  3. Mailspring

    17.9Kstars

    Mailspring is a free, open-source desktop email client for Windows, macOS and Linux that works with Gmail, Office 365, iCloud and any IMAP account. It offers a unified inbox, fast search, themes and templates, and runs its mail sync engine locally rather than in the cloud. An optional Pro subscription adds read receipts, link tracking, send later and reminders.

    7 Mailspring alternatives

    Pros

    • Free and open source on Windows, Mac and Linux
    • Sync engine runs locally rather than through a cloud service
    • Unified inbox, themes and templates in a clean interface

    Cons

    • Send later, reminders and read receipts require Pro
    • A Mailspring ID account is required even for the free version
    • No mobile apps to go with the desktop client
    Cost / License
    FreemiumOpen source
    Categories
    Email Clients & Providers
    Platforms
    WindowsMacLinux
    Features
    Dark modeEmail trackingSend laterTemplatesUnified inbox
    Visit websiteMore about Mailspring

  4. eM Client

    eM Client is a desktop email client for Windows and macOS that brings email, calendar, tasks, contacts and notes together in one app. It works with Gmail, Exchange, Microsoft 365, iCloud and IMAP accounts, and includes built-in PGP encryption, snoozing, send later and quick templates. A free version is available for personal use with a limited number of accounts, and the Pro license unlocks the rest.

    7 eM Client alternatives

    Pros

    • Email, calendar, tasks, contacts and notes in one desktop app
    • Built-in PGP encryption without extra plugins
    • Works with Gmail, Exchange, Microsoft 365, iCloud and IMAP

    Cons

    • Free version is for personal use with a limited number of accounts
    • No Linux version, only Windows and Mac
    • Interface can feel dense because of its many features
    Cost / License
    FreemiumProprietary
    Categories
    Email Clients & Providers
    Platforms
    WindowsMac
    Features
    Calendar viewEnd-to-end encryptionSend laterTemplatesUnified inbox
    Visit websiteMore about eM Client

  5. Apple Mail

    Apple Mail is the email app included with macOS, iOS and iPadOS, supporting iCloud, Gmail, Exchange and other IMAP accounts in a unified inbox. It offers send later, follow-up reminders, smart search and Mail Privacy Protection, which hides your IP address and stops senders from seeing when you open messages. With iCloud+, Hide My Email creates random addresses that forward to your inbox.

    9 Apple Mail alternatives

    Pros

    • Free and preinstalled on Mac, iPhone and iPad
    • Mail Privacy Protection hides your IP and blocks open tracking
    • Unified inbox for iCloud, Gmail, Exchange and IMAP accounts

    Cons

    • Only available on Apple devices
    • Few power-user features or extensions compared with dedicated clients
    • Hide My Email requires an iCloud+ subscription
    Cost / License
    FreeProprietary
    Categories
    Email Clients & Providers
    Platforms
    MaciPhone
    Features
    Ad-freeEmail aliasesSend laterTracker blockingUnified inbox
    Visit websiteMore about Apple Mail