# GPT-Write! vs Smart Assistant by Mailbutler

GPT-Write! records 0 monthly visits with — month-over-month growth and Freemium, Paid pricing. Smart Assistant by Mailbutler records 47,200 monthly visits with -8.7% growth and Freemium, Free Trial, Paid pricing.

| Metric | [GPT-Write!](https://openaitools.app/tool/gpt-write) | [Smart Assistant by Mailbutler](https://openaitools.app/tool/smart-assistant) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/gpt-write/iahjdhcoigkpcpjeoflmkpalepmldigi | https://mailbutler.io |
| Categories | AI Writing Assistants, AI Browsers, AI Text Generator, AI Copilot | AI Email Assistant, AI Email Generator, AI Response Generator, AI Summarizer |
| Pricing Model | Freemium, Paid | Freemium, Free Trial, Paid |
| Monthly Visits | 0 | 47,200 |
| MoM Growth Rate | — | -8.7% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 18,322 |
| Review Score | 1.8 | 4.5 |
| Saved Count | 0 | 6 |
| Supported Platforms | Browser Extension | Website |

## GPT-Write!

GPT-Write! is a small browser add-on built for people who spend their day inside webmail. Once installed, it sits alongside your Gmail compose view and acts as a drafting partner: you describe what you want to say, and the extension produces coherent, context-aware text you can drop straight into the message. It is positioned as a cure for writer's block, offering suggestions and alternative phrasings when the right words will not come.

Beyond raw generation, the tool puts emphasis on control. You can steer the output toward a professional, friendly, or persuasive register, so the same underlying idea can be reshaped for a client, a colleague, or a friend. Because it works on top of the browser rather than inside a separate app, the workflow stays inside the tab where you are already typing.

The listing is intentionally simple and has not changed much since early 2023, so it appeals most to users who want a no-frills helper rather than a full AI writing suite. The developer lists in-app purchases, which indicates premium options sit on top of the free install.

**Pricing & Plans:** The extension is free to install and the Chrome Web Store listing notes in-app purchases, indicating a freemium model with paid upgrades. Exact tier pricing is not published on the store page.

- **Webmail drafting assistant:** Generates full email bodies and replies directly inside Gmail and similar browser-based mail clients.
- **Writer's block relief:** Offers suggestions and alternative wording based on the context of the thread you are answering.
- **Tone and style control:** Reshape a draft to sound professional, friendly, or persuasive depending on the recipient.
- **Conversational input:** You describe what you want in plain language and the extension turns it into sendable copy.
- **Lightweight footprint:** A tiny Chrome add-on (under 20 KB) that stays out of the way until you need it.

**Strengths:** Very small and fast to install from the Chrome Web Store; Works inside the mail client you already use instead of a separate app; Tone and style controls make output easy to tailor per recipient; Low barrier to entry with a free install

**Limitations:** Listing has been largely static since early 2023 and the developer is not registered as a trader; In-app purchases mean the best functionality may sit behind a paywall; Tied to browser-based webmail, so it is not useful for desktop mail clients

[Profile (Markdown)](https://openaitools.app/tool/gpt-write.md)

## Smart Assistant by Mailbutler

Mailbutler is an email productivity extension for Apple Mail, Gmail, and Outlook, and its AI component is the Smart Assistant. Rather than being a standalone chatbot, the assistant is embedded in the compose and read views of the inbox you already use. It can compose an email from a few short keywords, draft a reply framed as positive, negative, or neutral, summarize an entire thread, or correct grammar and phrasing in a draft — all without switching apps or copying text elsewhere.

The AI layer is deliberately connected to the rest of Mailbutler's toolkit. Follow-up suggestions analyze tracked emails — opens, link clicks, and engagement patterns — then classify threads as high, medium, or low priority, and the Smart Assistant can draft the follow-up itself. That combination of tracking data plus generation is what makes the assistant useful in sales and client-facing work, where knowing who to chase matters as much as what to write.

The rest of the extension supplies email tracking, message templates, mail merge, smart timing, tasks and notes, shared inbox assignments, and signature marketing. On privacy, Mailbutler is ISO/IEC 27001 certified and GDPR compliant with servers in Frankfurt, Germany. Emails are still sent from your own server, message content is not analyzed or stored in the backend for general operation, and when you use the Smart Assistant the email body is sent to OpenAI only for that request, with email addresses replaced by dummy variables. Plans range from a free-forever Starter tier to paid Smart and Business plans, all starting with a free 14-day trial that includes every feature and no credit card requirement.

**Pricing & Plans:** There is a free-forever Starter plan plus a free 14-day trial with all features and no credit card. Paid tiers are billed per user per month (about $4 Starter, $7 Professional, $11 Smart, and higher Business pricing when billed yearly, with monthly pricing slightly higher) and available in USD or EUR. The AI Smart Assistant is included from the Smart plan upward; email tracking, templates, mail merge, tasks, and signatures are spread across the tiers.

- **AI drafting and reply generation:** 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.
- **Thread summarization:** Condense long email chains into the key points so you can catch up fast and respond without re-reading every message.
- **Grammar and tone correction:** The assistant rewrites and corrects your message for grammar, spelling, and phrasing before you hit send.
- **Smart Follow-ups:** 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.
- **Built into a full email toolkit:** The AI features sit alongside tracking, message templates, mail merge, tasks and notes, shared inbox assignments, and email signatures so your whole workflow stays in one inbox.

**Strengths:** Works inside Apple Mail, Gmail, and Outlook instead of forcing another app into your stack; AI drafting, summarization, and grammar checks are combined with tracking and follow-up prioritization in one place; Strong privacy posture: ISO/IEC 27001 certified, GDPR compliant, and servers located in Germany; Free 14-day trial unlocks all features with no credit card required

**Limitations:** Most genuinely useful AI features require a paid plan, and full automation sits on higher tiers; Free tier is limited, so the free-forever Starter plan is best treated as a lite entry point; Used for email drafting, email body text is transmitted to OpenAI (addresses are tokenized), which some compliance teams will want to review; Feature depth varies slightly by client since it is an extension layered over three different email apps

[Profile (Markdown)](https://openaitools.app/tool/smart-assistant.md)

## Frequently Asked Questions

### How do GPT-Write! and Smart Assistant by Mailbutler compare in monthly traffic?

GPT-Write! has 0 monthly visits, while Smart Assistant by Mailbutler has 47,200. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

GPT-Write! has a month-over-month growth rate of —; Smart Assistant by Mailbutler has -8.7%.

### How does pricing compare?

GPT-Write!: Freemium, Paid. The extension is free to install and the Chrome Web Store listing notes in-app purchases, indicating a freemium model with paid upgrades. Exact tier pricing is not published on the store page. Smart Assistant by Mailbutler: Freemium, Free Trial, Paid. There is a free-forever Starter plan plus a free 14-day trial with all features and no credit card. Paid tiers are billed per user per month (about $4 Starter, $7 Professional, $11 Smart, and higher Business pricing when billed yearly, with monthly pricing slightly higher) and available in USD or EUR. The AI Smart Assistant is included from the Smart plan upward; email tracking, templates, mail merge, tasks, and signatures are spread across the tiers.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 2 | [Superhuman](https://openaitools.app/tool/superhuman) | 6,514,241 | +7.9% | Paid | The AI productivity suite with agents, email, and docs that work wherever you do | [.md](https://openaitools.app/tool/superhuman.md) |
| 3 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | One-click AI assistant for browsing, writing and research | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 4 | [Spark Mail](https://openaitools.app/tool/spark-mail) | 435,229 | -13.5% | Freemium, Free Trial | Smart, focused email with AI help — for individuals and teams | [.md](https://openaitools.app/tool/spark-mail.md) |
| 5 | [GPT Workspace](https://openaitools.app/tool/gpt-workspace-1) | 431,507 | +43.8% | Freemium, Free Trial, Paid | Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail | [.md](https://openaitools.app/tool/gpt-workspace-1.md) |
| 6 | [BlueMail](https://openaitools.app/tool/bluemail) | 319,805 | -5.8% | Free | A privacy-first email client with built-in AI writing help | [.md](https://openaitools.app/tool/bluemail.md) |
| 7 | [HyperWrite](https://openaitools.app/tool/hyperwrite-ai) | 255,429 | +34.4% | Freemium | AI writing assistant with autocomplete, research, and a Chrome extension | [.md](https://openaitools.app/tool/hyperwrite-ai.md) |
| 8 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Summarize, bookmark and write with AI right in your browser | [.md](https://openaitools.app/tool/kome-ai.md) |
| 9 | [WriteMail.ai](https://openaitools.app/tool/writemail-ai) | 79,919 | -29.9% | Freemium | Turn a few key points into polished, on-tone emails | [.md](https://openaitools.app/tool/writemail-ai.md) |
| 10 | [Compose AI](https://openaitools.app/tool/compose) | 34,896 | -48.1% | Freemium, Free Trial, Contact for Pricing | AI autocomplete that finishes your sentences wherever you type | [.md](https://openaitools.app/tool/compose.md) |

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Source: https://openaitools.app/compare/gpt-write-vs-smart-assistant

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