Spark alternatives

At a glance

We list 9 other email clients tools as alternatives to Spark: BlueMail, Canary Mail, eM Client, Front, Mailbird, Mimestream, Missive, Shortwave and Thunderbird.
BlueMail, Canary Mail, eM Client, Mailbird and Thunderbird have a free plan.
Canary Mail, Mailbird and Mimestream work with Gmail, as Spark does.
Canary Mail, eM Client and Mailbird work with Outlook, as Spark does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.

9 alternatives

Listed alphabetically. A tool is ranked by its reviews once it has 3.

BlueMail
Email client with a unified inbox, push mail, PGP encryption and AI.
No reviews yet
Choose it over Spark for: iOS, macOS or Linux; integration with Linear or WhatsApp.
Free plan
Yes
Paid plans from
Plus, $6 per month, billed annually (as of November 14, 2026)
Free trial
7 days
Platforms
iOS, Android, macOS, Windows, Linux
Integrations shared with Spark
Notion, Slack
Main features
Unified inbox, GemAI writing and summaries, PGP encryption
Security and compliance
SSO
Compare with Spark
Be the first to review
Canary Mail
An email app with AI and a built-in calendar for all your accounts in one inbox.
No reviews yet
Choose it over Spark for: macOS or iOS; integration with iCloud.
Free plan
Yes
Paid plans from
Growth, $3 per month, billed yearly at $36 (as of November 13, 2026)
Free trial
7 days
Platforms
macOS, iOS, Android, Windows
Integrations shared with Spark
Gmail, Outlook
Main features
AI Copilot, Unified inbox, Shared inboxes
Security and compliance
GDPR, HIPAA
Compare with Spark
Be the first to review
eM Client
A fully-featured email client for Windows and macOS with a clean and easy-to-use interface.
No reviews yet
Choose it over Spark for: macOS or iOS; integration with Google Workspace, Office 365 or Exchange.
Free plan
Yes
Paid plans from
Personal, A$79.95 per year (as of November 14, 2026)
Platforms
Windows, macOS, Android, iOS
Integrations shared with Spark
Outlook, Slack
Main features
AI Assistant, AI Summarize, Message encryption
Compare with Spark
Be the first to review
Front
All your teams. All your AI agents. One place to run customer work, together
No reviews yet
Choose it over Spark for: Web, macOS, iOS or API; integration with Aircall, Stripe or Linear.
Paid plans from
Starter, $25 per seat per month, billed annually, up to 10 seats (as of October 20, 2026)
Free trial
14 days
Platforms
Web, macOS, Windows, iOS, Android, API
Integrations shared with Spark
None in common
Main features
Autopilot, Copilot, Shared inbox
Security and compliance
SOC 2, ISO 27001, GDPR, HIPAA, SSO
Be the first to review
Mailbird
Bring all your email accounts into one desktop app that's quick, private, and intuitive.
No reviews yet
Choose it over Spark for: macOS or iOS; integration with WhatsApp, Google Calendar or Dropbox.
Free plan
Yes
Plans
Free: $0 (as of November 13, 2026)
Platforms
Windows, macOS, Android, iOS
Integrations shared with Spark
Gmail, Outlook, Asana
Main features
Unified inbox, App integrations, Email tracking
Compare with Spark
Be the first to review
Mimestream
A native macOS email client for Gmail.
No reviews yet
Choose it over Spark for: macOS or iOS; integration with Google Calendar, Apple Calendar or Apple Contacts.
Paid plans from
Individual, $4.99 per month, or $49.99 per year (as of November 14, 2026)
Platforms
macOS, iOS
Integrations shared with Spark
Gmail
Main features
Inbox categories, Multiple accounts, Unified inbox
Compare with Spark
Be the first to review
Missive
Inbox collaboration for teams that run on email.
No reviews yet
Choose it over Spark for: Web, iOS or macOS; integration with Salesforce, Trello or Google Drive.
Platforms
Web, iOS, Android, macOS, Windows
Integrations shared with Spark
None in common
Main features
Team inboxes, Internal threads, Tasks management
Security and compliance
SOC 2, GDPR, SSO
Compare with Spark
Be the first to review
Shortwave
AI email that helps you organize, write, search and schedule with just a prompt.
No reviews yet
Choose it over Spark for: iOS or macOS; integration with Salesforce.
Paid plans from
Business, $30 per seat per month (as of November 13, 2026)
Free trial
14 days
Platforms
iOS, Android, macOS, Windows
Integrations shared with Spark
Asana, Notion, Slack, HubSpot
Main features
AI email filters, AI search, Split inbox
Compare with Spark
Be the first to review
Thunderbird
A free email application that's easy to set up and customize.
No reviews yet
Choose it over Spark for: Linux or macOS.
Free plan
Yes
Platforms
Windows, Linux, macOS, Android
Main features
Unified inbox, Email, calendar, contacts, Tags and filters
Compare with Spark
Be the first to review

People who moved on from Spark

From reviews of other tools that say they used Spark before.

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At a glance

We list 9 other email clients tools as alternatives to Spark: BlueMail, Canary Mail, eM Client, Front, Mailbird, Mimestream, Missive, Shortwave and Thunderbird.

BlueMail, Canary Mail, eM Client, Mailbird and Thunderbird have a free plan.

Canary Mail, Mailbird and Mimestream work with Gmail, as Spark does.

Canary Mail, eM Client and Mailbird work with Outlook, as Spark does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.