# ReplaiGPT vs Smart Assistant by Mailbutler

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

| Metric | [ReplaiGPT](https://openaitools.app/tool/replaigpt) | [Smart Assistant by Mailbutler](https://openaitools.app/tool/smart-assistant) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/replaigpt/bcdidnkadmpemipmokednakfbmbojnbp | https://mailbutler.io |
| Categories | AI Email Generator, AI Email Assistant, AI Reply, AI Response Generator | AI Email Assistant, AI Email Generator, AI Response Generator, AI Summarizer |
| Pricing Model | Freemium | 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 | 3.8 | 4.5 |
| Saved Count | 0 | 6 |
| Supported Platforms | Browser Extension | Website |

## ReplaiGPT

ReplaiGPT tackles a common annoyance with AI email tools: most assistants know nothing about who you are, so their drafts sound generic. ReplaiGPT makes you build reusable context profiles — details about yourself, your products, your standard answers — and then uses that stored context plus the currently open email to produce a reply that fits the actual request.

The extension works directly inside Gmail. You click the ReplaiGPT icon on an open message, pick one of your saved contexts, choose a language, and hit Generate. The result appears in roughly 10–15 seconds and can be sent after a quick edit. It is aimed at people who answer the same kinds of recurring requests over and over and want a faster first draft.

Privacy is handled locally: contexts and emails are stored in your browser rather than on ReplaiGPT's servers, and you supply your own OpenAI API key, so usage is billed by OpenAI directly. The basic version is free, with in-app purchases available.

**Pricing & Plans:** Freemium. The basic version is free to use and requires your own OpenAI API key (billed by OpenAI). Optional in-app purchases unlock extra functionality.

- **Custom context profiles:** Create and save reusable descriptions of yourself, your products or your business so every AI reply carries the right background.
- **One-click Gmail replies:** Open a message, click the extension icon, select a context and generate a draft reply without leaving your inbox.
- **Bring your own OpenAI key:** Connect your own OpenAI API key so generation costs go to your own account and you keep control of the model.
- **Local-first privacy:** Emails and contexts stay in your browser instead of being stored on the developer's servers.
- **Multilingual output:** Choose the language from the context dropdown and generate replies in any popular language.

**Strengths:** Replies reflect your own context instead of generic AI phrasing; No server-side storage of emails — contexts stay in your browser; Works in any language and with your own OpenAI API key; Free basic tier with no upfront cost

**Limitations:** Requires a separate OpenAI API key and account; Generation takes around 10–15 seconds per reply; Limited user base, so fewer community tips or reviews

[Profile (Markdown)](https://openaitools.app/tool/replaigpt.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 ReplaiGPT and Smart Assistant by Mailbutler compare in monthly traffic?

ReplaiGPT 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?

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

### How does pricing compare?

ReplaiGPT: Freemium. Freemium. The basic version is free to use and requires your own OpenAI API key (billed by OpenAI). Optional in-app purchases unlock extra functionality. 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 | [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) |
| 4 | [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) |
| 5 | [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) |
| 6 | [ParagraphAI](https://openaitools.app/tool/paragraphai) | 23,267 | -34.6% | Freemium | An AI writing assistant and keyboard for error-free writing anywhere | [.md](https://openaitools.app/tool/paragraphai.md) |
| 7 | [AImReply – Free AI Email Writer](https://openaitools.app/tool/ai-email-assistant-aimreply) | 17,618 | +6.9% | Free | Write polished, on-tone emails in seconds — free, right in your browser | [.md](https://openaitools.app/tool/ai-email-assistant-aimreply.md) |
| 8 | [ForthWrite](https://openaitools.app/tool/forthwrite) | 5,722 | +4.6% | Freemium, Free Trial, Contact for Pricing | AI email drafting that writes in your own voice, inside Gmail and Outlook | [.md](https://openaitools.app/tool/forthwrite.md) |
| 9 | [Auto Gmail: ChatGPT for email](https://openaitools.app/tool/auto-gmail-chatgpt-for-email) | 4,887 | +14.9% | Paid | An AI drafting layer that writes most of your Gmail replies before you open them. | [.md](https://openaitools.app/tool/auto-gmail-chatgpt-for-email.md) |
| 10 | [ChatGPT Add-in for Outlook](https://openaitools.app/tool/chatgpt-add-in-for-outlook) | 1,714 | -18.4% | Free add-in, paid custom builds | Run ChatGPT prompts on your Outlook inbox — summarise, highlight and triage email | [.md](https://openaitools.app/tool/chatgpt-add-in-for-outlook.md) |

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

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