SIGAINT Alternatives & Competitors

BlueMail is an email management app for Android, iOS, and Windows.

Key BlueMail features:

Cross-Platform Availability User-Friendly Interface Unified Inbox Customization Options

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues.

Key Spark Mail features:

Smart Inbox Collaborative Email Customization Unified Inbox

Open Source

Turn your inbox into a kanban board.

Key Kanmail features:

Unified Inbox Kanban Style Organisation Cross-platform Availability Privacy Focus

Try for free Open Source paid Free Trial $49.0 / One-off (Lifetime v2 license)

Spike's AI-first email helps you stay organized, respond faster, and boost productivity effortlessly. By turning email into chat, you can work and collaborate efficiently - with anyone. Welcome to the future of email.

Key Spike features:

Notes Chat Calendar Call Conferencing

freemium

Email, calendars, and contacts to highest standards of security, privacy and reliability.

Key FastMail features:

Privacy-Focused Feature-Rich Custom Domain Support Fast and Reliable

paid Free Trial $3.0 / Monthly (per user)

Emailing for teams: Organize your Inbox into channels 💌.

Key Loop Email features:

Collaboration Enhancement Shared Inboxes Real-Time Chat Integrated File Sharing

Team communication app now supporting FB, Twitter & SMS.

Key Missive features:

Team chat Team inbox (email, SMS, etc.) Rules & automation

freemium $14.0 / Monthly (^ 6 months history)

Email lives forever!. Reinvigorate your emailing experience with the best free email client, the Mailtrim.

Key Mailtrim features:

INTELLIGENT INBOX EMAIL SIGNATURE RESPOND LATER Smart Search

free

MailDroid is an email app that you can use to manage your emails from multiple vendors in one unified inbox.

Key MailDroid features:

User Interface Customizability Unified Inbox Advanced Security

K-9 is an opensource email client making it easy to chew through large volumes of email.

Key K-9 Mail features:

Open Source Customizability Privacy-Focused Supports Multiple Email Protocols

Secure email with absolutely no compromises. Get your free encrypted email account today.

Key ProtonMail features:

End-to-End Encryption Zero Access to User Data Swiss Privacy Laws Open Source

freemium €5.0 / Monthly (user - 5 GB)

Home · Products · Mods · Liquids · Contact Us · Where To Buy. The Boxer Mod. Featuring a YiHi SX350J-v2 Chipset. Evolv DNA200. and now Evolv DNA75.

Key Boxer features:

Unified Inbox Quick Replies Swipe Gestures Task Management

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response.

Key Claws Mail features:

Lightweight Customizable Fast Performance Open Source

Hexamail Flow is an email client application for desktop that you can use to manage, send, and receive emails from multiple providers in one unified place.

Key Hexamail Flow features:

Comprehensive Email Management Automation Features Customization Support for Multiple Email Protocols