# SenderStack vs Mailbutler Smart Assistant

SenderStack 记录了 0 月访问量，月度环比增长为 —，定价为免费增值，付费。Mailbutler Smart Assistant 记录了 47,200 月访问量，增长率为 -8.7%，定价为免费增值，免费试用，付费。

| 指标 | [SenderStack](https://openaitools.app/zh/tool/sender-stack) | [Mailbutler Smart Assistant](https://openaitools.app/zh/tool/smart-assistant) |
| :--- | :--- | :--- |
| 官网地址 | https://senderstack.com | https://mailbutler.io |
| 分类 | AI Email Assistant, AI 邮件生成器, AI Productivity Tools, AI 邮件撰写工具 | AI Email Assistant, AI 邮件生成器, AI 回复生成器, AI 摘要工具 |
| 定价模式 | 免费增值，付费 | 免费增值，免费试用，付费 |
| 月访问量 | 0 | 47,200 |
| 月度环比增长率 | — | -8.7% |
| 主要市场 | 全球 | 美国 |
| 直接访问量 | 0 | 18,322 |
| 评价得分 | 4.2 | 4.5 |
| 收藏数 | 0 | 6 |
| 支持平台 | 浏览器扩展 | 网站 |

## SenderStack

SenderStack is an AI writing and email productivity platform available as a Chrome extension and a web workspace. It drafts and replies to email in your own voice, lets you chat with multiple AI models, translate and summarize documents, and build simple automations that remove repetitive busywork from your day.

**定价与套餐:** SenderStack uses a freemium model with three paid tiers plus a lifetime option. Free is $0 and includes 5 AI email replies per day, AI composition, AI summaries, and multi-model chat. Starter is $5 per month (about $40 per year when billed annually) with 15 replies per day and 3 AI personalities. Pro is $10 per month (about $80 per year annually) with 75 replies per day, 5 personalities and dedicated support. A Lifetime plan is offered at $199 one-time with 125 replies per day and 10 personalities. No card is required to start and plans can be cancelled anytime; verify current pricing on senderstack.com.

- **AI email reply and compose:** Generate replies, draft new messages, and produce multiple phrasing options from a Gmail sidebar without breaking your workflow.
- **Multi-model AI chat:** Talk to several well-known AI models in one interface and pick the one that fits each research, writing, or summarization task.
- **Chat with PDFs and web pages:** Upload documents or point the assistant at a page to extract answers, summaries, and key points instead of reading everything yourself.
- **Trainable AI personalities:** Create custom personas for professional, casual, sales, or support writing and train them on your own tone so output matches your voice.
- **Automations and campaigns:** Set up recurring responses, scheduled follow-ups, and AI-assisted campaigns to cut repetitive sending work.

**优势:** Genuinely usable free tier with 5 AI replies per day; Clear, low-cost paid plans including a $199 one-time lifetime option; Supports multiple AI models instead of locking you to one provider; SOC 2 and GDPR claims plus Google verification and a clean store record

**局限:** Email integration is currently limited to Gmail; The free and Starter reply quotas are low for heavy senders; Inbox prioritization is still listed as a feature in development

[工具详情（Markdown）](https://openaitools.app/zh/tool/sender-stack.md)

## Mailbutler Smart Assistant

Mailbutler 是一款面向 Apple Mail、Gmail 和 Outlook 的邮件效率扩展，其 AI 能力即 Smart Assistant。它不是独立的聊天机器人，而是嵌入在你已使用的收件箱的撰写与阅读界面中。它能根据几个简短关键词写出一封完整邮件、按积极、消极或中性语气起草回复、摘要整条邮件串，或修正草稿中的语法与措辞，全程无需切换应用。

这一 AI 层与 Mailbutler 的其他工具刻意打通。智能跟进会分析被追踪邮件的数据——打开、链接点击与互动模式——把邮件串分为高、中、低优先级，然后由 Smart Assistant 直接起草跟进邮件。追踪数据与生成能力的这种结合，正是它在销售和客户沟通场景中真正有用的原因：知道该催谁和知道写什么同样重要。

扩展还提供邮件追踪、消息模板、邮件合并、最佳发送时间、任务与备注、共享收件箱分配以及签名营销。隐私方面，Mailbutler 通过 ISO/IEC 27001 认证、符合 GDPR，服务器位于德国法兰克福。邮件仍从你自己的服务器发出，常规运行中不会分析或存储邮件内容；使用 Smart Assistant 时，仅针对该次请求将邮件正文发送给 OpenAI，且邮箱地址会被替换为虚拟变量。套餐从永久免费的 Starter 起，到付费的 Smart 与 Business，均可先享 14 天全功能免费试用，无需信用卡。

**定价与套餐:** 提供永久免费 Starter 套餐，以及包含全部功能、无需信用卡的 14 天免费试用。付费套餐按每用户每月计费（年付约 Starter $4、Professional $7、Smart $11，Business 更高；月付价格略高），支持美元与欧元。AI Smart Assistant 从 Smart 套餐起提供；邮件追踪、模板、邮件合并、任务和签名分布于各层级。

- **AI 撰写与回复生成:** 把几个关键词或要点变成一封完整可发送的邮件，并按积极、消极或中性语气生成回复。
- **邮件串摘要:** 把冗长的邮件往来浓缩为要点，让你快速掌握上下文并直接回复，无需逐封重读。
- **语法与语气校正:** 在你点击发送前，助手会重写并修正你的邮件语法、拼写与措辞。
- **智能跟进:** 结合跟进建议与打开、点击追踪，告诉你哪些邮件最紧急，并可代你起草跟进内容。
- **完整邮件工具链的一部分:** AI 功能与追踪、消息模板、邮件合并、任务与备注、共享收件箱分配、邮件签名并存，工作流集中在一个收件箱。

**优势:** 直接在 Apple Mail、Gmail 和 Outlook 内运行，无需再向工作流额外塞一个应用; 把 AI 撰写、摘要、语法检查与追踪和跟进优先级整合在一处; 隐私策略扎实：通过 ISO/IEC 27001 认证、符合 GDPR，服务器位于德国; 14 天免费试用开放全部功能，且无需信用卡

**局限:** 多数真正实用的 AI 功能需要付费套餐，完整自动化集中在更高层级; 免费层较有限，永久免费 Starter 更适合作为轻量入门; 用于邮件撰写时，邮件正文会传输给 OpenAI（地址已被标记化处理），合规团队可能希望先行评估; 由于是叠加在三个不同邮件应用之上的扩展，功能深度在不同客户端略有差异

[工具详情（Markdown）](https://openaitools.app/zh/tool/smart-assistant.md)

## 常见问题

### SenderStack 和 Mailbutler Smart Assistant 在月流量上如何比较？

SenderStack 有 0 月访问量，而 Mailbutler Smart Assistant 有 47,200。流量估算描述的是受众规模，而非产品质量。

### 它们的增长率如何比较？

SenderStack 的月度环比增长率为 —；Mailbutler Smart Assistant 为 -8.7%。

### 价格如何比较？

SenderStack: 免费增值，付费。SenderStack uses a freemium model with three paid tiers plus a lifetime option. Free is $0 and includes 5 AI email replies per day, AI composition, AI summaries, and multi-model chat. Starter is $5 per month (about $40 per year when billed annually) with 15 replies per day and 3 AI personalities. Pro is $10 per month (about $80 per year annually) with 75 replies per day, 5 personalities and dedicated support. A Lifetime plan is offered at $199 one-time with 125 replies per day and 10 personalities. No card is required to start and plans can be cancelled anytime; verify current pricing on senderstack.com. Mailbutler Smart Assistant: 免费增值，免费试用，付费。提供永久免费 Starter 套餐，以及包含全部功能、无需信用卡的 14 天免费试用。付费套餐按每用户每月计费（年付约 Starter $4、Professional $7、Smart $11，Business 更高；月付价格略高），支持美元与欧元。AI Smart Assistant 从 Smart 套餐起提供；邮件追踪、模板、邮件合并、任务和签名分布于各层级。

## 替代工具

| # | 工具名称 | 月访问量 | 月度环比增长率 | 定价模式 | 简介 | 工具详情（Markdown） |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Grammarly](https://openaitools.app/zh/tool/grammarly) | 58,867,412 | -1.5% | 免费增值 | 提供实时语法纠错、语气校准、写作来源追踪与团队风格指南的跨平台 AI 写作助手。 | [.md](https://openaitools.app/zh/tool/grammarly.md) |
| 2 | [Superhuman](https://openaitools.app/zh/tool/superhuman) | 6,514,241 | +7.9% | 付费 | 兼具智能体、邮件与文档的 AI 生产力套件 | [.md](https://openaitools.app/zh/tool/superhuman.md) |
| 3 | [Spark Mail](https://openaitools.app/zh/tool/spark-mail) | 435,229 | -13.5% | 免费增值，免费试用 | 智能专注的邮箱体验，AI 助力个人与团队 | [.md](https://openaitools.app/zh/tool/spark-mail.md) |
| 4 | [BlueMail](https://openaitools.app/zh/tool/bluemail) | 319,805 | -5.8% | 免费 | 以隐私为先、内置 AI 写作助手的邮件客户端 | [.md](https://openaitools.app/zh/tool/bluemail.md) |
| 5 | [Shortwave](https://openaitools.app/zh/tool/shortwave) | 193,316 | -5.1% | 免费增值，免费试用 | Shortwave is an AI-powered email client that layers agentic automation on top of a modern inbox. It organizes, writes, searches, schedules and summarizes email with plain-language prompts, and adds team collaboration fea | [.md](https://openaitools.app/zh/tool/shortwave.md) |
| 6 | [WriteMail.ai](https://openaitools.app/zh/tool/writemail-ai) | 79,919 | -29.9% | 免费增值 | WriteMail.ai is an AI email writing assistant that turns a few rough key points into a polished, correctly toned email. It handles new messages as well as replies, supports dozens of languages, and offers tone, length an | [.md](https://openaitools.app/zh/tool/writemail-ai.md) |
| 7 | [Friday：AI 邮件写作助手](https://openaitools.app/zh/tool/friday-ai-e-mail-writer) | 33,056 | +20.8% | 免费试用 | 几秒内写出得体、语气到位的专业邮件 | [.md](https://openaitools.app/zh/tool/friday-ai-e-mail-writer.md) |
| 8 | [ParagraphAI](https://openaitools.app/zh/tool/paragraphai) | 23,267 | -34.6% | 免费增值 | ParagraphAI is an AI writing assistant and keyboard that fixes grammar, drafts replies and generates polished text in 40+ languages across apps and devices. | [.md](https://openaitools.app/zh/tool/paragraphai.md) |
| 9 | [AImReply – 免费 AI 邮件写作工具](https://openaitools.app/zh/tool/ai-email-assistant-aimreply) | 17,618 | +6.9% | 免费 | 几秒写出得体、语气恰当的邮件——免费，直接在浏览器中使用 | [.md](https://openaitools.app/zh/tool/ai-email-assistant-aimreply.md) |
| 10 | [Lavender](https://openaitools.app/zh/tool/lavender) | 12,063 | -14.6% | 免费增值，免费试用 | 为销售邮件实时打分并改写的 AI 邮件教练与销售代理 | [.md](https://openaitools.app/zh/tool/lavender.md) |

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来源：https://openaitools.app/zh/compare/sender-stack-vs-smart-assistant

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