# Spark

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.

- **Category:** [Utilities](https://notchlist.vercel.app/category/utilities/)
- **Price:** Free; Plus $10/mo ($8.25/mo billed yearly); Pro $20/mo ($16.58/mo billed yearly); Enterprise custom
- **Open source:** no
- **Official site:** https://sparkmailapp.com/
- **Available via:** Direct
- **Requirements:** macOS; also available on Windows, iOS, and Android, syncing across all of them.
- **Maker:** Readdle

## Kitsmith's 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.

## Features

- **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.

## FAQ

**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.


---

Hand-verified listing on Kitsmith: https://notchlist.vercel.app/apps/spark/