Smart Assistant by Mailbutler records 47,200 monthly visits with -8.7% month-over-month growth and Freemium, Free Trial, Paid pricing. ZeroGPT records 32,864,541 monthly visits with +19.7% growth and Freemium, Paid pricing.
An AI email assistant that drafts, summarizes, and perfects your messages in place
AI content detection and a full writing toolkit in one place
| Dimension / Metric | | |
|---|---|---|
| Official Domain | mailbutler.io | zerogpt.com |
| Pricing Model | Freemium, Free Trial, Paid | Freemium, Paid |
| Monthly Visits | 47.2K (47,200) | 32.86M (32,864,541) |
| MoM Traffic Delta | -4.51K (-8.7%) | +5.41M (+19.7%) |
| Primary Market & Share | 🇺🇸 United States (26.9%) | 🇺🇸 United States (43%) |
| Direct Visits / mo | 18.32K | 8.22M |
| User Rating | 4.5 | 3.8 |
| Supported Platforms | Website | Website |
An AI email assistant that drafts, summarizes, and perfects your messages in place
Turn a handful of keywords or bullet points into a full, sendable email, and generate replies framed as positive, negative, or neutral depending on the situation.
Condense long email chains into the key points so you can catch up fast and respond without re-reading every message.
The assistant rewrites and corrects your message for grammar, spelling, and phrasing before you hit send.
Follow-up suggestions combined with open and click tracking tell you which threads are urgent, and the assistant can draft the follow-up for you.
AI content detection and a full writing toolkit in one place
Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report.
Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals.
Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning.
A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer.
SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
SpecialistPopular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
SpecialistPopular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT.
Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT.
SpecialistAcademic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
SpecialistAcademic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
The AI productivity suite with agents, email, and docs that work wherever you do
The AI productivity suite with agents, email, and docs that work wherever you do
Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally.
Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally.
Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages.
Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages.
Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers.
Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers.
Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities.
Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities.
SpecialistOnline writing suite blending AI humanization tools with plagiarism and readability checking features.
SpecialistOnline writing suite blending AI humanization tools with plagiarism and readability checking features.
High-accuracy AI content detector that scans both text and uploaded images for machine generation.
High-accuracy AI content detector that scans both text and uploaded images for machine generation.
Smart, focused email with AI help — for individuals and teams
