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Spark Mail and Pagkugi

Cross-platform client with smart inbox, AI, calendar, and team features.

At a glance

Smart Inbox, Gatekeeper, Priority, Send Later, snooze, reminders, AI writing, calendar, and team collaboration.

Where Pagkugi differs. A hosted, multi-platform service with a cache, where Pagkugi is a local Maildir client.

Status
Active, closed source
License
Proprietary (free and paid tiers)
Platforms
macOS, Windows, iOS, Android
Storage
Provider-owned mail with a local client cache.
Website
https://sparkmailapp.com/

Where Spark Mail is better

  • Smart Inbox, Gatekeeper, Priority, and sender grouping.
  • Send Later, snooze, reminders, and Set Aside.
  • AI writing, summaries, and translation.
  • Calendar and team collaboration on macOS, Windows, iOS, and Android.

Storage and ownership

Where the mail actually lives, and whether it survives the client.

Feature Pagkugi Spark Mail
Open local storage Yes No
Maildir as the live store Yes No
Works offline Yes Limited

Accounts and protocols

The servers and providers the client can talk to.

Feature Pagkugi Spark Mail
IMAP and SMTP Yes Yes
POP3 No Not in the first release. No
Gmail account No Provider-specific account model is not supported. Yes
Microsoft / Exchange No Exchange-specific account model is not supported. Yes Exchange and Outlook.
JMAP No No

Reading

How a message is presented, and what happens to HTML.

Feature Pagkugi Spark Mail
In-app HTML rendering No Mail is converted to text instead. Yes
HTML converted to text Yes Varies
Conversation threading Yes Yes
Calendar invitations Limited A focused read-only viewer, not a calendar application. Yes

Writing and organizing

Composition, search, and the tools that shape a mailbox.

Feature Pagkugi Spark Mail
Rich or HTML composition No Composes text/plain; Markdown composition is not released. Yes
Snooze or send later No Yes
Full-text search Yes Yes
Custom incoming filters No The local filter engine is implemented but switched off. Yes Smart Inbox and Gatekeeper.
Tags or labels No Read state only; no general labels or tags. Limited
Mailing-list actions Yes Limited Unsubscribe.
Command palette or keyboard-first No Actions live in explicit context menus. Limited
Open-thread work view Yes No

Security and privacy

Encryption, sender checks, and what leaves the machine.

Feature Pagkugi Spark Mail
PGP / S/MIME No Not built in. No
Phishing or sender checks Yes Limited
Remote content blocked Yes Yes
Built-in AI features No No assistant, by design. Yes

Platform and business

Where it runs, how it extends, and how it is sold.

Feature Pagkugi Spark Mail
Graphical desktop app Yes Yes
Terminal interface No No
Mobile app No Yes
Web or self-hosted No No
Calendar, contacts, or groupware No Yes Calendar and team collaboration.
Plugin or extension system No Limited Integrations.
Open source No Proprietary commercial software. No
No account with its maker Yes No

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