Spark Mail records 435,229 monthly visits with -13.5% month-over-month growth and Freemium, Free Trial pricing. Zeli records 56,147 monthly visits with -46.8% growth and Free pricing.
Smart, focused email with AI help — for individuals and teams
Hacker News and AI paper summaries in seven languages
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sparkmailapp.com | zeli.app |
| Pricing Model | Freemium, Free Trial | Free |
| Monthly Visits | 435.23K (435,229) | 56.15K (56,147) |
| MoM Traffic Delta | -67.76K (-13.5%) | -49.3K (-46.8%) |
| Primary Market & Share | 🇺🇸 United States (31.3%) | 🇨🇳 China (65.1%) |
| Direct Visits / mo | 198.43K | 39.95K |
| User Rating | 4.3 | 4.3 |
| Supported Platforms | Website | Website |
Smart, focused email with AI help — for individuals and teams
Spark's Smart Inbox and Priority highlight messages from important people and bundle newsletters and notifications so the rest of your inbox stays quiet.
An AI Assistant lets you find, summarize, and take action on anything in your inbox, while an AI writing assistant drafts emails and Auto-Drafts pre-writes replies.
Translate incoming messages, get instant summaries of long threads, and quickly grasp the point without reading every line.
Share drafts, leave private comments, delegate ownership, and track progress on email threads with your colleagues.
Hacker News and AI paper summaries in seven languages
Each story carries a short summary generated from the linked article plus a standout key quote, so you can judge relevance before clicking through.
The whole feed — titles, summaries and top comment highlights — is available in English, Chinese, Japanese, Korean, German, Spanish and Russian.
Every day gets a permanent page containing every story that hit the front page, retrievable long after the feed has moved on.
Daily AI papers are surfaced with translated titles and AI summaries, making Zeli a research reader as well as a news reader.
Blazing-fast keyboard-driven email experience with powerful AI features, but operates on a much higher subscription price point.
Blazing-fast keyboard-driven email experience with powerful AI features, but operates on a much higher subscription price point.
A proactive AI reading lens for papers, videos, and web pages
A proactive AI reading lens for papers, videos, and web pages
Significantly stronger team collaboration features with shared inboxes and internal chat, but less focus on standalone consumer AI drafting.
Significantly stronger team collaboration features with shared inboxes and internal chat, but less focus on standalone consumer AI drafting.
Free AI Summarizer for text, articles, URLs and images
Free AI Summarizer for text, articles, URLs and images
Provides cross-platform support with integrated AI drafting, but lacks some of Spark's advanced shared team workspace features.
Provides cross-platform support with integrated AI drafting, but lacks some of Spark's advanced shared team workspace features.
Offers deeper AI-driven inbox organization and automated bundles, but has a different interface and navigation structure than Spark.
Offers deeper AI-driven inbox organization and automated bundles, but has a different interface and navigation structure than Spark.
SpecialistOne AI assistant that works wherever you work
SpecialistOne AI assistant that works wherever you work
AI-powered platform to read, write, and stay current with research
Transforms traditional email threads into conversational chat interfaces, but requires adjusting to a non-standard inbox layout.
Transforms traditional email threads into conversational chat interfaces, but requires adjusting to a non-standard inbox layout.
Free / Open-sourceOpen-source and self-hostable AI email assistant focused on blocking cold emails and sorting, but lacks a full native mobile app client.
Free / Open-sourceOpen-source and self-hostable AI email assistant focused on blocking cold emails and sorting, but lacks a full native mobile app client.
Turn any long article or webpage into a clean, clickable summary in one click
Turn any long article or webpage into a clean, clickable summary in one click
AI summaries and study guides for scientific papers
AI summaries and study guides for scientific papers
