AI email assistants , by Readdle , since 2015
Spark Mail
Cross-platform email client with built-in AI writing assistant and meeting notes
- WEB
- DESKTOP
- MOBILE
What Spark Mail does
Spark Mail (by Readdle) is a free-to-start email client for iOS, Android, Mac, Windows and web with a Smart Inbox that categorizes mail automatically. Its Spark+AI assistant (GPT-based) drafts and rewrites emails, and paid tiers add AI meeting notes and team collaboration for individuals and small businesses.
What you get: Smart Inbox categorization, Spark +AI email drafting, AI meeting notes & transcription, Team collaboration & shared drafts, Custom email templates, Todoist/Notion/Reminders integration, Spark CLI.
Typical jobs: free email client with ai for iphone and mac; email app with smart inbox categorization; ai meeting notes inside email client; cross platform email app for teams.
Worth knowing: Official pricing is listed in EUR (€10/€22 monthly, €8.25/€19.08 annual); USD figures above are an approximate conversion (~1.08 rate, Aug 2026), actual charge may vary by region/store.
What users complain about: AI rewrite options were said to 'not seem to actually do anything,' and the assistant is described as 'still behind the competition' versus Grammarly. (App Store reviews)
Pricing and plan limits
Verified August 2026| Plan | Monthly | Annual (per mo) | Limits |
|---|---|---|---|
| Free | Free | Free | Unlimited email accounts; AI limited to a preview only |
| Plus | $10.80 | $8.90 | Monthly AI credit quota, 40 AI meeting notes/month, 2 free collaborators |
| Pro | $23.80 | $20.60 | Unlimited AI meeting notes; AI drafting still on monthly quota |
| Enterprise | not disclosed | n/a | Custom |
Where it wins
- Genuinely free tier with unlimited accounts and a real Smart Inbox, not just a trial
- One app across Mac, Windows, iOS, Android and web with synced settings
- AI meeting notes bundled in on paid tiers alongside email AI
- States user data isn't used to train its or OpenAI's models
- Long track record (client shipped since 2015) with frequent updates
Where it falls short
- Full AI feature set is locked behind the ~$20+/month Pro tier
- Reviewers say the AI writing quality 'is still behind the competition' (e.g., Grammarly) and some rewrite options 'do not seem to actually do anything'
- Monthly AI credit quota can run out even on paid plans, throttling drafting/transcription
- Free-tier users cannot purchase AI add-ons at all
- Occasional sync/performance slowdowns reported with Outlook/Microsoft 365 accounts
How we scored it
Full methodology| Criterion | Weight | Score | Contribution |
|---|---|---|---|
| Capability | 30% | 6.5 | 1.95 |
| Value for money | 25% | 7.0 | 1.75 |
| Ease of use | 15% | 8.0 | 1.20 |
| Maturity | 15% | 8.5 | 1.27 |
| Support & docs | 10% | 6.5 | 0.65 |
| Momentum | 5% | 6.0 | 0.30 |
| Weighted total | 100% | 7.1 | 7.10 |
Alternatives to Spark Mail
Chosen by editors, not sponsors-
MailmeteorFreemiumCheaper entry plan at $4.99/mo
-
SaneBoxPaidCheaper entry plan at $7/mo
-
MissivePaidOffers an API
-
MailMaestroFreemiumClosest match on capability
Similar tools in AI email assistants
Premium, keyboard-driven email client with AI auto-drafts, auto-labels, and coaching
- WEB
- DESKTOP
- MOBILE
AI-native Gmail client with Claude-powered search, auto-drafts, and smart filters
- WEB
- DESKTOP
- MOBILE
Chrome extension that scores and coaches sales emails to improve reply rates
- WEB
- EXTENSION