Spark Mail

What is Spark Mail?

Spark Mail (often just called Spark) is an AI-powered email client built by Readdle, the Ukrainian software company behind productivity staples like PDF Expert, Documents and Scanner Pro. First launched in 2015 and rebuilt around AI in recent releases, Spark unifies all of your email accounts — Gmail, Outlook, iCloud, Exchange and any IMAP provider — into a single Smart Inbox that automatically groups newsletters, notifications and personal messages so the email that matters surfaces first. The product's positioning is "Smart. Focused. Email." — an inbox designed to cut through overload rather than add to it.

The AI layer, branded Spark +AI, turns the inbox into an assistant. From a short prompt like "decline the meeting politely and suggest Thursday," it composes a complete, ready-to-edit draft. It can rewrite, proofread, shorten or change the tone of any text, translate messages between languages, and summarize a long thread into key points and action items in one tap. A built-in AI Assistant searches across your emails, attachments, calendar events and meeting notes to answer questions and surface what needs a reply, while AI Meeting Notes transcribe and summarize calls so follow-ups write themselves.

Spark also leans into collaboration. Teams can create shared drafts, leave private comments on a thread before it goes out, delegate email, and run shared inboxes for support or sales addresses — features that put it closer to a lightweight team email platform than a solo client. Everything syncs across iOS, iPadOS, macOS, Android, Windows and Apple Watch, with a consistent, design-led interface that has long been one of Spark's signatures.

In 2026 Spark sits in a competitive AI-email field alongside Superhuman, SaneBox and Gmail's own Gemini features. Its differentiator is value and breadth: a genuinely usable free tier, true cross-platform coverage (including Windows and Android, which Superhuman serves more narrowly), and AI that is woven through composing, triage and search rather than bolted on. The target audience is professionals, freelancers and small teams who want a focused inbox with AI assistance without paying premium email-client prices.

Spark Mail Pricing

Spark offers a free plan plus two paid tiers and an Enterprise option. Spark +AI is metered by a monthly usage quota on each plan, with warnings as you approach the limit. Prices below are per user; annual billing saves roughly 17%. Pricing verified June 2026 from the official site.

• Free — $0: Smart Inbox, unlimited connected email accounts, smart notifications, calendar, scheduled send, snooze and reminders, plus a basic monthly Spark +AI allowance.
• Plus — $10/user/mo (monthly) or $8.25/user/mo billed annually ($99/year): Everything in Free plus advanced email productivity, the full Spark +AI feature set with a larger quota, AI Assistant, 40 AI Meeting Notes, custom templates and productivity integrations.
• Pro — $20/user/mo (monthly) or $16.58/user/mo billed annually ($199/year): Everything in Plus plus unlimited AI Meeting Notes, read statuses, advanced team collaboration, HubSpot integration and Spark CLI with triage access. Marked "Recommended" by Readdle.
• Enterprise — custom pricing: Everything in Pro plus security controls, a dedicated success manager and 1:1 productivity coaching.

Note: older Spark Premium plans (around $4.99–$7.99/mo) have been replaced by the Free / Plus / Pro structure. The free tier remains genuinely useful for personal email; AI-heavy users will likely move to Plus or Pro for the larger +AI quota.

Key Features

• Smart Inbox — Automatically groups incoming mail into Personal, Newsletters and Notifications so high-priority messages are seen first, with Priority email pinned to the top and smart notifications that only alert you to people, not promotions
• Spark +AI Compose — Generate a complete, professional email draft from a one-line prompt; rewrite, proofread, shorten, expand or change tone, and let "My Writing Style" learn from your sent mail to match your voice
• AI Summaries — One-tap summaries condense long threads into the key points, decisions and action items so you can triage without reading every reply
• AI Assistant — Ask questions across your emails, attachments, calendar events and meeting notes; the assistant finds the relevant message, surfaces what needs a reply, and drafts the response
• AI Meeting Notes — Transcribe and summarize calls automatically, then turn them into follow-up emails (40 notes on Plus, unlimited on Pro)
• Translate — Read and write email across languages with built-in AI translation, useful for international clients and remote teams
• Team collaboration — Shared drafts, private comments on threads, email delegation and shared inboxes for support or sales addresses, so a team can manage one mailbox together
• Cross-platform sync — Native apps for iOS, iPadOS, macOS, Android, Windows and Apple Watch keep settings, drafts and inbox state consistent on every device
• Scheduling tools — Send Later with timezone awareness, snooze, follow-up reminders and a built-in calendar with Zoom, Google Meet and Microsoft Teams links

Pros & Cons

Best For

• Professionals on multiple devices who want one consistent, AI-assisted inbox across iPhone, Mac, Android and Windows rather than separate native clients
• Freelancers and consultants juggling several email accounts who benefit from a unified Smart Inbox plus AI compose and summaries to clear mail faster
• Small teams running shared support or sales inboxes who need delegation, private comments and shared drafts without buying a full help-desk platform
• Budget-conscious users who want AI email features but find Superhuman's premium pricing hard to justify