Inbox2 Alternatives

Inbox2 is described as 'premium connected lifestyle application that brings communication - and the people you communicate with - into a single, synchronized application that is accessible everywhere. The innovative email platform allows you to plug-in your existing email accounts (Gmail' and is a Email Client in the social & communications category. There are more than 25 alternatives to Inbox2 for a variety of platforms, including Windows, Linux, Mac, BSD and Android apps. The best Inbox2 alternative is Thunderbird, which is both free and Open Source. Other great apps like Inbox2 are K-9 Mail, Microsoft Office Outlook, Evolution and Spark Mail.

Inbox2 alternatives are mainly Email Clients but may also be Calendar Apps or Mail Servers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Inbox2.

Inbox2 alternatives page was last updated

Inbox2

Free • Open Source
Email Client

Inbox2 is a premium connected lifestyle application that brings communication - and the people you communicate with - into...

More about Inbox2

Mailbird
Sponsored
Paid • Proprietary
Email Client
Windows
66 Mailbird alternatives
Mailbird helps individuals and businesses manage emails in one place. This allows you to simplify your workflows. Therefore, spend more time on important tasks. Moreover, 9 in 10 of our customers describe our interface as “intuitive” and beautiful.
Thunderbird
Is this is a good alternative?
Yes
No
Free • Open Source
Email Client
Calendar App
Mac
Windows
Linux
BSD
AppImageHub
Snapcraft
Flathub
PortableApps.com
Haiku
Homebrew
Chocolatey
95 Thunderbird alternatives
Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.
- - Thunderbird is the most popular Windows, Mac & Linux alternative to Inbox2.
- - Thunderbird is the most popular Open Source & free alternative to Inbox2.
Suggest and vote on features
Thunderbird Features
1. Extensible by Plugins/ExtensionsThunderbird can be extended with add-ons, plugins and extensions.
2. Multiple Account supportThunderbird support multiple accounts without the need to logout and login
3. Calendar IntegrationThunderbird lets you sync your tasks and events with your calendar application.
4. Email OrganizerThunderbird allows you to take control of your inbox by filtering and control tools.
5. Dark ModeThunderbird supports dark mode for comfortable usage in low light conditions.
6. OpenPGPThunderbird supports OpenPGP, a standard of PGP encryption that is open-source for public use.
7. GPG EncryptionThunderbird supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
8. PortableThunderbird can be used from a USB stick or similar with no prior installation.
9. Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Thunderbird.
IMAP Support
SMTP Support
FOSS
Add-ons
Built-in RSS reader
POP3 Support
Intuitive
Graphical User Interface
Customizable
Integrated Web Browser
K-9 Mail
Is this is a good alternative?
Yes
No
Free • Open Source
Email Client
Android
Android Tablet
F-Droid
46 K-9 Mail alternatives
K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.
- - K-9 Mail is the most popular Android & Android Tablet alternative to Inbox2.
Suggest and vote on features
K-9 Mail Features
1. Ad-freeK-9 Mail doesn't contain any form of external advertising.
2. Multiple Account supportK-9 Mail support multiple accounts without the need to logout and login
3. Privacy focusedK-9 Mail is considered a privacy friendly alternative.
4. PGP EncryptionK-9 Mail supports PGP, an encryption system used for sending encrypted emails and files.
5. No TrackingK-9 Mail will not track you or use your personal data.
6. End-to-End EncryptionK-9 Mail has E2E Encryption, for entire or parts of the app.
IMAP Support
Configurable
POP3 Support
One view multiple accounts
Custom notifications
Contacts
Exchange
Header sorting
Microsoft Office Outlook
Is this is a good alternative?
Yes
No
Paid • Proprietary
Email Client
Calendar App
Mac
Windows
Online
Android
iPhone
Android Tablet
Windows Phone
iPad
Apple Watch
Android Wear
141 Microsoft Office Outlook alternatives
Microsoft Outlook, part of the Microsoft 365 (Office) (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
- - Microsoft Office Outlook is the most popular Web-based, iPhone & iPad alternative to Inbox2.
- - Microsoft Office Outlook is the most popular commercial alternative to Inbox2.
Suggest and vote on features
Microsoft Office Outlook Features
1. Email OrganizerMicrosoft Office Outlook allows you to take control of your inbox by filtering and control tools.
2. Calendar IntegrationMicrosoft Office Outlook lets you sync your tasks and events with your calendar application.
3. Support for @mentionsMicrosoft Office Outlook supports the use of mentions through @ to a particular user, who will be notified personally.
4. Calendar ViewMicrosoft Office Outlook has a built-in calendar view to have a clear overview of your content over time.
5. Support for AliasesMicrosoft Office Outlook supports aliases, so you can receive email without exposing your main email address
6. Unified inboxView e-mails (or similar) from all accounts in one unified view with Microsoft Office Outlook.
7. Multiple Account supportMicrosoft Office Outlook support multiple accounts without the need to logout and login
8. Works OfflineMicrosoft Office Outlook can be used without the need to connect to the internet.
9. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
Exchange
Native application
Contacts
Built-in Calendar
Onenote Desktop Integration
Address book integration
Dropbox integration
Gmail integration
Office 365 integration
Onedrive integration
Evolution
Is this is a good alternative?
Yes
No
Free • Open Source
Email Client
Calendar App
Linux
BSD
Flathub
S/MIME
GNOME
OpenPGP
83 Evolution alternatives
Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality. Evolution supports a wide range of industry standard data formats and network protocols for information exchange, with an emphasis on...
Suggest and vote on features
Evolution Features
1. Calendar IntegrationEvolution lets you sync your tasks and events with your calendar application.
2. Calendar ViewEvolution has a built-in calendar view to have a clear overview of your content over time.
3. Ad-freeEvolution doesn't contain any form of external advertising.
4. Multiple Account supportEvolution support multiple accounts without the need to logout and login
5. GPG EncryptionEvolution supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
6. Spam FilterEvolution can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
7. RemindersEvolution allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
8. Sync with Google CalendarEvolution can be synchronized with Google Calendar
Contacts
CalDAV Support
Encrypted Email
CardDAV Support
Personal Information Manager (PIM)
IMAP Support
Exchange
POP3 Support
Multiple languages
Integrated Spam Protection
Spark Mail
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
Android
iPhone
iPad
Apple Watch
60 Spark Mail alternatives
E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.
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Spark Mail Features
1. Multiple Account supportSpark Mail support multiple accounts without the need to logout and login
2. Email SchedulingYou can schedule a marketing, sales, or personal email for a time in the future with Spark Mail.
3. Calendar IntegrationSpark Mail lets you sync your tasks and events with your calendar application.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. Email OrganizerSpark Mail allows you to take control of your inbox by filtering and control tools.
6. Dark ModeSpark Mail supports dark mode for comfortable usage in low light conditions.
7. Unified inboxView e-mails (or similar) from all accounts in one unified view with Spark Mail.
8. Works OfflineSpark Mail can be used without the need to connect to the internet.
9. Calendar ViewSpark Mail has a built-in calendar view to have a clear overview of your content over time.
Snooze Mail
Sorting by folder
Ad-free
Sync with Google Calendar
Exchange
Postpone email reception
AI-Powered
eM Client
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
65 eM Client alternatives
eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts, notes and chat.
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eM Client Features
1. Calendar IntegrationeM Client lets you sync your tasks and events with your calendar application.
2. Multiple Account supporteM Client support multiple accounts without the need to logout and login
3. PGP EncryptioneM Client supports PGP, an encryption system used for sending encrypted emails and files.
4. Dark ModeeM Client supports dark mode for comfortable usage in low light conditions.
5. Unified inboxView e-mails (or similar) from all accounts in one unified view with eM Client.
6. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
7. Email OrganizereM Client allows you to take control of your inbox by filtering and control tools.
8. Sync with Google CalendareM Client can be synchronized with Google Calendar
9. Automatic BackupeM Client will automatically back up your data periodically.
IMAP Support
Exchange
CardDAV Support
CalDAV Support
Contacts
Gmail integration
Calendar Sync
POP3 Support
Email preview
Sync Contacts
Geary
Is this is a good alternative?
Yes
No
Free • Open Source
Email Client
Linux
BSD
Flathub
GNOME
Flatpak
52 Geary alternatives
Geary is an email application built around conversations, for the GNOME 3 desktop.
Suggest and vote on features
Geary Features
1. Multiple Account supportGeary support multiple accounts without the need to logout and login
2. Dark ModeGeary supports dark mode for comfortable usage in low light conditions.
3. LightweightGeary consumes less device resources compared to similar apps.
4. Spam FilterGeary can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
5. Ad-freeGeary doesn't contain any form of external advertising.
6. Privacy focusedGeary is considered a privacy friendly alternative.
7. Email OrganizerGeary allows you to take control of your inbox by filtering and control tools.
Conversational email approach
SMTP Support
IMAP Support
Labels for content
Gmail integration
Multiple languages
Claws Mail
Is this is a good alternative?
Yes
No
Free • Open Source
Email Client
Calendar App
Windows
Linux
BSD
84 Claws Mail alternatives
Claws Mail is an email client (and news reader), based on GTK+, featuring

Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability.
Suggest and vote on features
Claws Mail Features
1. LightweightClaws Mail consumes less device resources compared to similar apps.
2. Extensible by Plugins/ExtensionsClaws Mail can be extended with add-ons, plugins and extensions.
3. Multiple Account supportClaws Mail support multiple accounts without the need to logout and login
4. No registration requiredYou can use most of the features in Claws Mail without registration.
5. Spam FilterClaws Mail can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
6. Privacy focusedClaws Mail is considered a privacy friendly alternative.
7. Works OfflineClaws Mail can be used without the need to connect to the internet.
8. Calendar IntegrationClaws Mail lets you sync your tasks and events with your calendar application.
9. PortableClaws Mail can be used from a USB stick or similar with no prior installation.
IMAP Support
Customizable
Ad-free
GPG Encryption
Import/Export OPML Feeds
End-to-End Encryption
Built-in RSS reader
Integrated Email Client
Multiple languages
Content Filtering
Mailbird
Is this is a good alternative?
Yes
No
Paid • Proprietary
Email Client
Windows
66 Mailbird alternatives
Mailbird helps individuals and businesses manage emails in one place. This allows you to simplify your workflows. Therefore, spend more time on important tasks. Moreover, 9 in 10 of our customers describe our interface as “intuitive” and beautiful.
Suggest and vote on features
Mailbird Features
1. Dark ModeMailbird supports dark mode for comfortable usage in low light conditions.
2. Unified inboxView e-mails (or similar) from all accounts in one unified view with Mailbird.
3. Multiple Account supportMailbird support multiple accounts without the need to logout and login
4. Email template editorMailbird offers pre-defined email layouts so you can add content or customize your own templates.
5. Email OrganizerMailbird allows you to take control of your inbox by filtering and control tools.
Clean design
Sync Contacts
Undo send
Email tracking
GSuite Integration
Slack integration
Asana integration
Unified communications
Multi Account Switching
Graphical User Interface
Microsoft Mail and Calendar
Is this is a good alternative?
Yes
No
Free • Proprietary
Email Client
Calendar App
Windows
92 Microsoft Mail and Calendar alternatives
Windows 10 has Mail and Calendar apps already built in.
Suggest and vote on features
Microsoft Mail and Calendar Features
1. Unified inboxView e-mails (or similar) from all accounts in one unified view with Microsoft Mail and Calendar.
Run in background
Bundled with Windows
Email tracking
Airmail
Is this is a good alternative?
Yes
No
Paid • Proprietary
Email Client
Mac
iPhone
iPad
Apple Watch
69 Airmail alternatives
Airmail is a lightweight and lightning fast mail client for Mac.
Suggest and vote on features
Airmail Features
1. Multiple Account supportAirmail support multiple accounts without the need to logout and login
2. LightweightAirmail consumes less device resources compared to similar apps.
Clean design
IMAP Support
POP3 Support
Fullscreen support
Dropbox integration
Customizable