# ForthWrite vs GPT for Gmail™ | AI Email Assistant

ForthWrite records 5,722 monthly visits with +4.6% month-over-month growth and Freemium, Free Trial, Contact for Pricing pricing. GPT for Gmail™ | AI Email Assistant records 0 monthly visits with — growth and Freemium pricing.

| Metric | [ForthWrite](https://openaitools.app/tool/forthwrite) | [GPT for Gmail™ \| AI Email Assistant](https://openaitools.app/tool/gmail-gpt) |
| :--- | :--- | :--- |
| Website URL | https://forthwrite.ai | https://workspace.google.com/marketplace/app/gmail_gpt/899305976589 |
| Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply | AI Email Assistant, AI Email Writer, AI Email Generator, AI Reply |
| Pricing Model | Freemium, Free Trial, Contact for Pricing | Freemium |
| Monthly Visits | 5,722 | 0 |
| MoM Growth Rate | +4.6% | — |
| Primary Market | United States | Global |
| Direct Visits | 2,249 | 0 |
| Review Score | 4.2 | 4.2 |
| Saved Count | 0 | 4 |
| Supported Platforms | Website | Workspace |

## ForthWrite

ForthWrite is an AI writing assistant aimed at people who live in their inbox. Instead of asking you to learn a new tool, it installs as a Gmail and Outlook web extension and adds a drafting widget directly to the compose box. On first use it analyses emails you have already sent to build a voice profile, so the very first suggested reply starts close to something you would actually send. The model is tuned for nuance and can also take a manual persona prompt when you want a specific register.

The product family spans three levels. Inbox is the individual product, with a free tier that provides 10 AI drafts a week plus voice matching, and a Pro tier that unlocks auto-drafting, batch drafting of long threads, a Prompt Lab for versioning and A/B testing prompts, recipient- and intent-aware drafting, voice dictation, smart retrieval over your past mail, and performance analytics. Teams extends Pro drafting to every seat in an organisation with a shared voice baseline, a shared prompt library, a team analytics dashboard, and a review record showing what was drafted, what changed, and which model produced it.

ForthWrite also sells consulting to professional-services firms such as accounting, tax, advisory, lending, and brokerage practices. Those engagements begin with a free 30-minute diagnostic and can extend into a paid audit, a 30-60 day roadmap, and implementation with written SOPs. The company is clear about its operating principle: ForthWrite drafts, and a person sends, so accountability and signature stay with the user.

**Pricing & Plans:** Freemium with a free forever tier (10 drafts per week, voice matching, no card required), Pro at $24/month billed annually ($29 monthly), and Teams from $59/seat/month billed annually ($79 monthly, 2-seat minimum). All paid plans start with a 14-day free trial; Teams gets a 30-day trial. An optional Bring Your Own API Key mode takes roughly 17% off. Consulting is scoped separately per firm.

- **Voice matching from your sent mail:** ForthWrite reads emails you have already sent to build a voice profile, then refreshes it roughly every 50 captured emails so drafts keep tracking how your writing evolves.
- **Auto-draft and batch drafting:** Pro users can have replies waiting when they open Gmail, and clear dozens of threads in parallel instead of writing each one by hand.
- **Recipient- and intent-aware drafting:** Drafts adapt tone to the person you are replying to and treat follow-ups, intros, and status updates as genuinely different jobs rather than one generic template.
- **Prompt Lab and performance analytics:** Version control and A/B test your prompts, then track acceptance rate, voice match, and intent mix on a measurable improvement curve.
- **Team standards and compliance guardrails:** On Teams, a shared voice baseline and shared prompt library keep every seat consistent, and a draft that breaks a firm rule stops the preparer with a written reason.

**Strengths:** Drafts pick up your real tone because the voice profile is built from mail you have already sent; Works inside Gmail and Outlook web with no migration or new inbox to learn; Strong free tier with 10 drafts a week and voice matching included, no card required; Teams adds shared prompts, team analytics, and a review record that firms usually need

**Limitations:** Web-based Gmail and Outlook only; there is no full desktop client experience; Full value depends on having a decent history of previously sent emails for the voice profile; Consulting engagements are custom-scoped, so pricing is not published

[Profile (Markdown)](https://openaitools.app/tool/forthwrite.md)

## GPT for Gmail™ | AI Email Assistant

GPT for Gmail lives where your email already is. After installing the add-on from the Google Workspace Marketplace and granting it access, a side panel appears in Gmail with options to generate a reply to the open thread, compose a fresh email from a prompt, rephrase what you have written, correct mistakes, or translate the whole message. The vendor states that the add-on works with ChatGPT, Gemini, Claude, Perplexity and Mistral models, so you can pick whichever engine suits the task without managing API keys yourself.

The main appeal is speed. Instead of writing routine responses from scratch, you describe what you want to say and let the assistant produce a draft you can edit. Template prompts cover common business scenarios such as HR replies, interview invitations, student and teacher communication, and client responses. There is also a summarization option for long threads, which is useful when you only need the essentials before replying.

Translation is a headline capability: the listing advertises support for more than 40 languages and dialects, making the tool popular with non-native English speakers who need polished business English. Pricing follows a freemium model - the add-on is free to install and core features are free, while advanced capabilities sit behind a paid plan handled on the vendor's own site. The listing has hundreds of thousands of installs and a 4.6-star average, which suggests it is actively maintained, with updates continuing through 2026.

**Pricing & Plans:** Freemium. The add-on is free to install and core features are free to use; premium features require a paid subscription purchased through the vendor's website. No API key is required for the built-in ChatGPT functionality.

- **One-click AI replies:** Open a thread, describe your intent, and generate a ready-to-edit reply inside Gmail's sidebar.
- **Multi-model choice:** The vendor advertises support for ChatGPT, Gemini, Claude, Perplexity and Mistral engines from a single add-on.
- **Rephrase, improve and correct:** Rewrite a draft for tone, tighten wording, fix grammar, or simplify an overly technical explanation.
- **Email translation in 40+ languages:** Translate incoming or outgoing messages across a long list of languages and dialects.
- **Template and prompt library:** Prebuilt prompts for HR, recruiting, teaching, support and client communication, plus custom instructions.

**Strengths:** Works directly inside Gmail with no copying and pasting between tabs; Covers several major AI providers, so you are not locked into one model; Translation across 40+ languages is genuinely useful for global teams; Free tier makes it easy to test before paying

**Limitations:** Requires granting an add-on access to your mailbox context; Premium capabilities are not fully spelled out on the marketplace listing; AI drafts still need human review for confidential or high-stakes email

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

## Frequently Asked Questions

### How do ForthWrite and GPT for Gmail™ | AI Email Assistant compare in monthly traffic?

ForthWrite has 5,722 monthly visits, while GPT for Gmail™ | AI Email Assistant has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ForthWrite has a month-over-month growth rate of +4.6%; GPT for Gmail™ | AI Email Assistant has —.

### How does pricing compare?

ForthWrite: Freemium, Free Trial, Contact for Pricing. Freemium with a free forever tier (10 drafts per week, voice matching, no card required), Pro at $24/month billed annually ($29 monthly), and Teams from $59/seat/month billed annually ($79 monthly, 2-seat minimum). All paid plans start with a 14-day free trial; Teams gets a 30-day trial. An optional Bring Your Own API Key mode takes roughly 17% off. Consulting is scoped separately per firm. GPT for Gmail™ | AI Email Assistant: Freemium. Freemium. The add-on is free to install and core features are free to use; premium features require a paid subscription purchased through the vendor's website. No API key is required for the built-in ChatGPT functionality.

## 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 | [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) |
| 5 | [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) |
| 6 | [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) |
| 7 | [Smart Assistant by Mailbutler](https://openaitools.app/tool/smart-assistant) | 47,200 | -8.7% | Freemium, Free Trial, Paid | An AI email assistant that drafts, summarizes, and perfects your messages in place | [.md](https://openaitools.app/tool/smart-assistant.md) |
| 8 | [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) |
| 9 | [Friday: AI E-mail Writer](https://openaitools.app/tool/friday-ai-e-mail-writer) | 33,056 | +20.8% | Free Trial | Draft polished, on-tone emails in seconds with an AI writing assistant | [.md](https://openaitools.app/tool/friday-ai-e-mail-writer.md) |
| 10 | [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) |

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Source: https://openaitools.app/compare/forthwrite-vs-gmail-gpt

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