Inbox Zero vs SimpleMail
In the face-off between Inbox Zero vs SimpleMail, which AI Email Assistant tool takes the crown? We scrutinize features, alternatives, upvotes, reviews, pricing, and more.
In a face-off between Inbox Zero and SimpleMail, which one takes the crown?
If we were to analyze Inbox Zero and SimpleMail, both of which are AI-powered email assistant tools, what would we find? Inbox Zero is the clear winner in terms of upvotes. The number of upvotes for Inbox Zero stands at 7, and for SimpleMail it's 6.
Don't agree with the result? Cast your vote and be a part of the decision-making process!
Inbox Zero

What is Inbox Zero?
Inbox Zero connects to Gmail or Outlook and uses AI to label incoming mail, draft replies in your voice, and surface what needs attention first. You get pre-written responses waiting when you open your inbox, plus bulk unsubscribe tools for newsletters you never read. The product works on web, iOS, Android, Slack, and Telegram so you can triage mail without living in your email tab.
Most email assistants stop at summarization. Inbox Zero also blocks cold emails, files attachments automatically on higher tiers, and pulls calendar and CRM context into drafts so scheduling replies match your real availability. The codebase is open source with 9k GitHub stars, SOC 2 Type 2 certification, and a self-host option for teams that want full control.
Starter plans cover solo operators who want labels, analytics, and reply drafts. Plus adds Slack, Notion, Stripe integrations, and an unlimited knowledge base. Professional adds team analytics and dedicated onboarding. Over 20,000 professionals use Inbox Zero, and every paid plan includes a 7-day free trial.
SimpleMail

What is SimpleMail?
Are you tired of the daily grind of managing emails, which takes up a significant portion of your time and keeps you from focusing on essential tasks? SimpleMail is here to revolutionize the way you handle your email correspondence. Our AI-powered tool significantly enhances your productivity by streamlining the email writing process. With SimpleMail, you can create professional emails in seconds, simply by providing bullet points. Our AI takes care of grammar, spelling, and style, offering you various response tones such as positive, negative, and neutral to match the context of your communication. Moreover, SimpleMail can summarize long emails with a single click, turning them into concise notes that save you time and effort. Designed exclusively for Gmail accounts, our tool is an invaluable asset for business owners, with proven outcomes such as increased revenue and improved customer engagement. As we are in Open Beta, you can take advantage of all these features for free, but a small fee will be implemented once the beta period ends. Join now and let SimpleMail transform your email experience.
Inbox Zero Upvotes
SimpleMail Upvotes
Inbox Zero Top Features
Connect Gmail or Outlook in two clicks and auto-label mail into categories like To Reply, Newsletter, and Urgent
Pre-drafted replies in your tone appear for every email that needs a response
Bulk unsubscribe and archive shows newsletters you never read with one-click cleanup
Works on Slack, Telegram, iOS, Android, and web without switching apps
Starter plan at $20 per user per month includes analytics and cold email blocking
Open-source codebase with 9k GitHub stars and SOC 2 Type 2 certification
SimpleMail Top Features
AI-Compose Function: Generates professional emails from bullet points ensuring error-free grammatically correct communications.
Summarize Function: Condenses lengthy emails into easy-to-understand points with just one click to save you reading time.
AI Reply Function: Offers tailored replies based on positive negative or neutral tones to appropriately address received emails.
Chrome Extension: Currently available as a Chrome extension enhancing Gmail users' experience with advanced AI capabilities.
Free During Open Beta: Users can enjoy all features free during the open beta phase with affordable plans upon official release.
Inbox Zero Category
- Email Assistant
SimpleMail Category
- Email Assistant
Inbox Zero Pricing Type
- Freemium
SimpleMail Pricing Type
- Freemium
