Spark Mail: AIメールアシスタント

Manage priorities, not emails.

Spark brings every account into one inbox and automatically surfaces what matters most — so nothing slips through the cracks. Loved by millions and named "Best of the App Store" by Apple.

"It's a combination of polish, simplicity, and depth." — FastCompany

"You can create an email experience that works for you." — TechCrunch

EVERY ACCOUNT, EVERY EMAIL, IN ONE PLACE

Connect Gmail, Outlook, iCloud, Yahoo, AOL, Hotmail, GMX, and any IMAP account in a single unified inbox.

STAY ORGANIZED WITH SMART INBOX

Important emails from real people rise to the top. Newsletters and notifications stay neatly grouped below, out of your way.

GET MORE DONE WITH EMAIL ESSENTIALS

Mark emails as done or set them aside for later

Mute threads you're no longer following

Schedule emails to send later — even if your device is off

Find anything fast with Smart Search and Smart Folders

PROTECT YOUR INBOX WITH GATEKEEPER

Pre-screen new senders and block unwanted contacts instantly.

PRIORITIZE WHAT MATTERS

Mark important senders so their emails always stay on top. Group emails by sender or domain to keep your inbox clean.

WRITE FASTER WITH SPARK +AI

Summarize long threads, draft replies, rephrase messages, and adjust tone. Your AI Assistant helps you clear your inbox, translate emails, and keep projects moving.

MANAGE YOUR CALENDAR AND MEETINGS

Connect your calendars to stay on top of your day in one app.

CONNECT YOUR FAVORITE TOOLS

Link Spark to Notion, Asana, Things, and 10+ integrations to act on everything in your inbox.

COLLABORATE WITH YOUR TEAM

Co-author emails and discuss in private comments

Assign messages so everyone knows who owns what

Share secure links to specific emails

Track read receipts to keep work moving

SECURE AND PRIVATE

Spark encrypts your data, runs on Google Cloud's secure infrastructure, and is fully GDPR compliant.

TRY IT FREE

Stick with our powerful free plan, or try Spark Plus or Spark Pro free for 7 days.

Download Spark and reclaim your day.

FAQ

Is Spark the best email app for managing multiple accounts?

Spark brings Gmail, Outlook, iCloud, Yahoo, and any IMAP account into one unified inbox, so you can manage every email in one place instead of switching between apps.

How is Spark different from Apple Mail and Gmail?

Spark helps you focus on what matters, not just read email. It automatically prioritizes messages from real people, keeps newsletters out of the way, and can summarize, draft, and follow up so less falls through the cracks.

How does Spark help with email overload?

Spark surfaces important messages first, lets you snooze emails until you're ready, and helps you reach Inbox Zero without the grind. Higher plans flag what needs attention so nothing gets missed.

Does Spark have AI features?

Yes. Spark uses AI to write faster, reply clearly, and summarize threads. On Plus, AI helps you make better inbox decisions. On Pro, it acts on your behalf — drafting, organizing, and following up.

Is Spark good for team collaboration?

Yes. Teams can share drafts, comment privately, assign messages, and manage shared inboxes — no forwarding chains. Collaboration is available on Pro.

Can I schedule emails to send later?

Yes. Schedule any email to send at the right time, or snooze incoming messages to return when you're ready.

Is Spark free?

Yes. Spark is free to download and use. Spark Plus is for professionals who want a more focused inbox; Spark Pro is for those who need Spark to handle follow-through so nothing gets missed.

Is Spark available on Mac, iPhone, and iPad?

Yes. Spark works on iOS, iPadOS and macOS, and stays in sync across all your devices.

Spark is made by Readdle.

Terms of Service: https://sparkmailapp.com/legal/terms

Privacy Policy: https://sparkmailapp.com/legal/privacy-app

Help: support@sparkmailapp.com