NewtonHQ Alternatives (January 2026)

Newton supercharges your email with powerful features like Read Receipts, Send Later, Snooze & more. Works with Gmail, Google Apps, Exchange, Outlook, Office365, iCloud, Yahoo & IMAP.

4.5/5

3+ reviews

Reviewed on:

G2
1.
BlueMail - The Best Email App for Windows, Mac, Linux, Android and iOS
https://bluemai
.me/

BlueMail is a modern, mobile and desktop, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP, Exchange,POP3.

2.
Mailbutler: Your inbox, smarter.
https://www.mailbutle
.io/

Mailbutler is the email software extension plugin for Apple Mail, Gmail, and Outlook that helps you stay productive and professional.

3.
Spark Mail — Smart. Focused. Email.
https://sparkmailap
.com/

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest.

5.
Superhuman | Blazingly fast email for teams and individuals
https://superhuma
.com/

The fastest email experience ever made. Blazingly fast, delightful, and stress free. Get 4 hours back every single week.

7.
Kiwi for Gmail | The Best Desktop Gmail and Office Suite for Mac & Windows
https://www.kiwiforgmai
.com/

Elevate your Gmail & Google Workspace with Kiwi for Gmail. Quickly access Docs, Sheets, Slides and Drive apps with one powerful desktop office suite - Now on both Mac and Windows! Get started now.

8.
Mailspring - The best free email app
https://www.getmailsprin
.com/

Mailspring: The open-source, extensible email app for Mac, Linux, and Windows with open tracking, link click tracking, contacts enrichment data and more.

9.
Business Email Services - Amazon WorkMail - AWS
https://aws.amazo
.com/workmail/

Amazon WorkMail provides secure, managed business email and calendaring with support for existing desktop and mobile email client applications.