Spark
Free; Plus $10/mo ($8.25/mo billed yearly); Pro $20/mo ($16.58/mo billed yearly); Enterprise custom
Price checked at source September 18, 2026.
A cross-platform email client from Readdle with AI writing, summarization, and inbox-prioritization tools — free to start, with paid tiers for AI quota and team collaboration.
Our take
Positions itself around filtering noise rather than raw speed: Priority and Pin surface important senders, Group by Sender bundles the rest, and Gatekeeper screens unknown senders before they hit the inbox. Spark +AI (writing assistant, summarization, translation) is opt-in and disabled by default, and is metered by a monthly credit quota that scales with plan tier rather than being unlimited even on paid plans. The free plan covers unlimited accounts and the core inbox; Plus and Pro add AI credits, meeting notes, and team features like shared drafts and assignments.
- Price
- Free; Plus $10/mo ($8.25/mo billed yearly); Pro $20/mo ($16.58/mo billed yearly); Enterprise custom
- License
- Proprietary
- Requires
- macOS; also available on Windows, iOS, and Android, syncing across all of them.
- Get it via
- Direct
- Developer
- Readdle
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What it does
Priority & Gatekeeper
Highlights important senders and screens unknown ones before they reach the inbox.
Spark +AI
Opt-in AI writing assistant, thread summaries, and translation, metered by a monthly credit quota per plan.
Team collaboration
Shared threads, private comments, assignments, and shared drafts for working an inbox with colleagues.
Unified inbox across accounts
Connects IMAP, iCloud, Exchange, Outlook, Yahoo, and Google accounts in one home screen.
The deal
- Free: unlimited accounts, Smart Inbox, calendar
- Plus: $10/mo ($8.25/mo billed yearly) — AI assistant, 40 AI meeting notes/mo, basic team collaboration
- Pro: $20/mo ($16.58/mo billed yearly) — unlimited AI meeting notes, advanced collaboration, HubSpot integration
- Enterprise: custom pricing
- 7-day free trial on Plus and Pro
Spark — questions people ask
Is Spark free?
Yes — the free plan includes unlimited email accounts and core inbox features; paid Plus/Pro tiers add AI credits and team collaboration.
Who makes Spark?
Readdle, also known for Documents, Scanner Pro, and PDF Expert.
Is Spark free?
Spark is free to use with optional paid unlocks.
Does Spark work alongside a notch app like Alcove?
Yes — Spark lives in the screen, so it runs happily alongside any Dynamic Island hub or notch app.
Where can I download Spark?
Spark is available via Direct.
Reviews
No public ratings yet. Reader reviews are coming to Kitsmith soon.
Listing hand-verified September 18, 2026 from the developer's site and public sources.
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