Apps with 'Unified inbox' feature

View e-mails (or similar) from all accounts in one unified view with these apps.

Gmail
Free • Proprietary
WebMail Provider
Email Client
Mail Server
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Google Chrome
Android Wear
Android TV
Software as a Service (SaaS)
81 alternatives to Gmail
The official Gmail app brings the best of Gmail to you with robust security, real-time notifications, multiple account support, and search that works across all your mail.
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Gmail Features
1. Multiple Account supportGmail support multiple accounts without the need to logout and login
2. Email OrganizerGmail allows you to take control of your inbox by filtering and control tools.
3. Works OfflineGmail can be used without the need to connect to the internet.
4. Mail FilteringGmail classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
5. IFTTT IntegrationYou can connect different services to automatically trigger actions within Gmail using IFTTT.
6. Unified inboxView e-mails (or similar) from all accounts in one unified view with Gmail.
Integrated Search
Integrated Chat
Basic html mode
Custom Backgrounds
Outlook integration
Canned responses
Emoji Text support
Email deliverability
Integrated Spam Protection
Threaded Conversations
Top 3 alternatives
Microsoft Office Outlook
Paid • Proprietary
Email Client
Calendar App
Mac
Windows
Online
Android
iPhone
Android Tablet
Windows Phone
iPad
Apple Watch
Android Wear
136 alternatives to Microsoft Office Outlook
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.
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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
Top 3 alternatives
Mailspring
Freemium • Open Source
Email Client
Mac
Windows
Linux
Arch Linux
Fedora
Ubuntu
45 alternatives to Mailspring
Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.
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Mailspring Features
1. Unified inboxView e-mails (or similar) from all accounts in one unified view with Mailspring.
2. Multiple Account supportMailspring support multiple accounts without the need to logout and login
3. Dark ModeMailspring supports dark mode for comfortable usage in low light conditions.
4. Support for ThemesYou can use themes and templates to change the look and feel of Mailspring.
5. Ad-freeMailspring doesn't contain any form of external advertising.
6. Email OrganizerMailspring allows you to take control of your inbox by filtering and control tools.
7. Extensible by Plugins/ExtensionsMailspring can be extended with add-ons, plugins and extensions.
Customizable
Email tracking
User friendly
Snooze Mail
Built-in translation
Built-in themes
Auto Update
Notifications
Sidebar
Theme Customization
Top 3 alternatives
Spark Mail
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
Android
iPhone
iPad
Apple Watch
58 alternatives to Spark Mail
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.
Sorting by folder
Snooze Mail
Exchange
Postpone email reception
AI-Powered
Top 3 alternatives
Anbox
Free • Open Source
Android Emulator
Virtualization Tool
Linux
36 alternatives to Anbox
Anbox puts Android into a container and every Android application will be integrated with your operating system. Any Android version is suitable for this approach and try to keep up with the latest version from the Android Open Source Project.
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Anbox Features
1. LightweightAnbox consumes less device resources compared to similar apps.
2. Container VirtualizationAnbox can make use of isolated user spaces called "containers" to run applications.
3. Unified inboxView e-mails (or similar) from all accounts in one unified view with Anbox.
Discontinued
According to their README, development has been discontinued in 2023.
Top 3 alternatives
eM Client
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
63 alternatives to eM Client
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
Top 3 alternatives
Mailbird
Paid • Proprietary
Email Client
Windows
64 alternatives to Mailbird
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.
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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
Top 3 alternatives
Betterbird
Free • Open Source
Email Client
Windows
Linux
Flathub
28 alternatives to Betterbird
Betterbird is a fine-tuned version of Mozilla Thunderbird, Thunderbird on steroids, if you will.
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Betterbird Features
1. Privacy focusedBetterbird is considered a privacy friendly alternative.
2. Multiple Account supportBetterbird support multiple accounts without the need to logout and login
3. Unified inboxView e-mails (or similar) from all accounts in one unified view with Betterbird.
4. Extensible by Plugins/ExtensionsBetterbird can be extended with add-ons, plugins and extensions.
5. PGP EncryptionBetterbird supports PGP, an encryption system used for sending encrypted emails and files.
Add a screenshot
Top 3 alternatives
Microsoft Mail and Calendar
Free • Proprietary
Email Client
Calendar App
Windows
91 alternatives to Microsoft Mail and Calendar
Windows 10 has Mail and Calendar apps already built in.
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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
Top 3 alternatives
Zenkit
Freemium • Proprietary
Todo List Manager
Team Collaboration Tool
Project Management Tool
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Software as a Service (SaaS)
412 alternatives to Zenkit
Follow your data through its entire lifecycle. From fluid brainstorming and research, through to a structured system for collaborative use, Zenkit is the flexible workspace you can use to organize anything.
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Zenkit Features
1. Kanban BoardZenkit allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
2. Unified inboxView e-mails (or similar) from all accounts in one unified view with Zenkit.
3. Calendar ViewZenkit has a built-in calendar view to have a clear overview of your content over time.
4. Import CSV DataZenkit can import data from a CSV (Comma seperated values) file.
5. Goal TrackingZenkit can be used for tracking progress toward personal or business goals.
6. Mood TrackingZenkit can keep a record of your personal mood or someone else at regular intervals.
7. Calendar IntegrationZenkit lets you sync your tasks and events with your calendar application.
8. RemindersZenkit allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
9. Works OfflineZenkit can be used without the need to connect to the internet.
Mind Map view
Customizable
Kanban Chart
Project overview
Cross-references
Slack integration
Clean design
Custom data fields
Tabbed interface
Automated reporting system
Top 3 alternatives
ERPNext
Free • Open Source
CRM System
Invoicing Software
Project Management Tool
Mac
Linux
Online
Self-Hosted
Python
137 alternatives to ERPNext
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.
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ERPNext Features
1. Sync with Google CalendarERPNext can be synchronized with Google Calendar
2. Dark ModeERPNext supports dark mode for comfortable usage in low light conditions.
3. GamificationERPNext makes use of game-design elements such as point scoring, competition, achievements, etc.
4. Git SupportERPNext supports Git, a free and open source distributed version control system.
5. Marketing AutomationERPNext can automate marketing campaigns and activities throughout the customer journey by automatic workflows.
6. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
7. Recurring TasksERPNext supports scheduling a task to recur at any frequency, such as daily or weekly.
8. SubtasksERPNext allows you to create and manage tasks inside of a parent-main task.
9. Ad-freeERPNext doesn't contain any form of external advertising.
Customizable
ERP
Email integration
Fleet management
Project Tracking
Google Calendar integration
Paypal integration
Google contacts integration
Webshop
Dropbox integration
Top 3 alternatives
Spike
Freemium • Proprietary
Email Client
Group Chat App
Team Collaboration Tool
Mac
Windows
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Software as a Service (SaaS)
Oculus Rift
62 alternatives to Spike
Bring your workspace together into one unified app. It’s everything your team has been looking for in a productivity and messaging app, but easier, and all with your email. Welcome to the shortest path to done.
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Spike Features
1. Unified inboxView e-mails (or similar) from all accounts in one unified view with Spike.
2. Dark ModeSpike supports dark mode for comfortable usage in low light conditions.
3. Email OrganizerSpike allows you to take control of your inbox by filtering and control tools.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. Multiple Account supportSpike support multiple accounts without the need to logout and login
6. RemindersSpike allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
7. Real time collaborationMultiple users can work together in Spike simultaneously.
8. Live PreviewInstantly see what your files and documents look like as you create them.
Built-in File Manager
Send later
Read confirmation
Snooze reliability
Web-Based
Tagging
Undo send
Priority Inbox
Threaded Conversations
Bulk actions
Top 3 alternatives
Canary Mail
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
Android
iPhone
Android Tablet
iPad
Apple Watch
61 alternatives to Canary Mail
Email, meet AI. Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!
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Canary Mail Features
1. End-to-End EncryptionCanary Mail has E2E Encryption, for entire or parts of the app.
2. Unified inboxView e-mails (or similar) from all accounts in one unified view with Canary Mail.
3. Multiple Account supportCanary Mail support multiple accounts without the need to logout and login
4. PGP EncryptionCanary Mail supports PGP, an encryption system used for sending encrypted emails and files.
5. No TrackingCanary Mail will not track you or use your personal data.
6. Dark ModeCanary Mail supports dark mode for comfortable usage in low light conditions.
7. Two-factor AuthenticationCanary Mail supports two-factor authentication (2FA).
8. Email OrganizerCanary Mail allows you to take control of your inbox by filtering and control tools.
9. Ad-freeCanary Mail doesn't contain any form of external advertising.
AI-Powered
Email tracking
Snooze Mail
Email reminder
Gmail
Read receipts
Encrypted Email
Email Categorization
Top 3 alternatives
BlueMail
Free Personal • Proprietary
Email Client
Mac
Windows
Linux
Android
iPhone
Chrome OS
Android Tablet
iPad
Apple Watch
27 alternatives to BlueMail
BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.
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BlueMail Features
1. Unified inboxView e-mails (or similar) from all accounts in one unified view with BlueMail.
2. Ad-freeBlueMail doesn't contain any form of external advertising.
3. LightweightBlueMail consumes less device resources compared to similar apps.
4. Multiple Account supportBlueMail support multiple accounts without the need to logout and login
5. Calendar IntegrationBlueMail lets you sync your tasks and events with your calendar application.
IMAP Support
GDPR Compliant
POP3 Support
Top 3 alternatives
Mimestream
Paid • Proprietary
Email Client
Mac
Gmail
20 alternatives to Mimestream
Mimestream combines your favorite Gmail features with the power of a native macOS app so you can move through your email effortlessly.
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Mimestream Features
Gmail integration
Gmail
Top 3 alternatives

Gmail Features

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Microsoft Office Outlook Features

Top 3 alternatives

Mailspring Features

Top 3 alternatives

Spark Mail Features

Top 3 alternatives

Anbox Features

Top 3 alternatives

eM Client Features

Top 3 alternatives

Mailbird Features

Top 3 alternatives

Betterbird Features

Top 3 alternatives

Microsoft Mail and Calendar Features

Top 3 alternatives

Zenkit Features

Top 3 alternatives

ERPNext Features

Top 3 alternatives

Spike Features

Top 3 alternatives

Canary Mail Features

Top 3 alternatives

BlueMail Features

Top 3 alternatives

Mimestream Features

Top 3 alternatives