# ForthWrite vs InboxIQ ForthWrite records 5,722 monthly visits with +4.6% month-over-month growth and Freemium, Free Trial, Contact for Pricing pricing. InboxIQ records 0 monthly visits with — growth and Free pricing. | Metric | [ForthWrite](https://openaitools.app/tool/forthwrite) | [InboxIQ](https://openaitools.app/tool/inboxiq) | | :--- | :--- | :--- | | Website URL | https://forthwrite.ai | https://chromewebstore.google.com/detail/inboxiq/glbdclhnkllflngooioakkcmhahkjffh | | Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply | AI Email Assistant, AI Assistant, AI API | | Pricing Model | Freemium, Free Trial, Contact for Pricing | Free | | Monthly Visits | 5,722 | 0 | | MoM Growth Rate | +4.6% | — | | Primary Market | United States | Global | | Direct Visits | 2,249 | 0 | | Review Score | 4.2 | 4.3 | | Saved Count | 0 | 0 | | Supported Platforms | Website | Browser Extension | ## 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) ## InboxIQ InboxIQ is a lightweight Chrome extension built around a simple idea: you should be able to describe your inbox's content to an AI without handing your email to a middleman. Instead of running your mail through vendor-owned infrastructure, it asks you to plug in your own OpenAI API key. Requests travel directly from your browser to OpenAI and back, and the developer states that no conversations or email contents are stored on any server. The functional core is two-fold. First, thread summarization: open a sprawling back-and-forth and get a concise digest of what actually matters. Second, follow-up questioning: ask things like "what did they commit to?" or "what's the deadline?" and get an answer grounded in the thread you are reading. Settings let you tune how long conversation context is retained. The extension is published on the Chrome Web Store by an individual developer, has a small user base, carries a 5.0 rating from early reviewers, and is listed as requiring an OpenAI API key for operation. Outlook support is on the roadmap. Because you supply the key, your usage costs are billed directly by OpenAI rather than included in the extension. **Pricing & Plans:** Free [Profile (Markdown)](https://openaitools.app/tool/inboxiq.md) ## Frequently Asked Questions ### How do ForthWrite and InboxIQ compare in monthly traffic? ForthWrite has 5,722 monthly visits, while InboxIQ 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%; InboxIQ 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. InboxIQ: Free. Free ## 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 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | One AI assistant that plugs ChatGPT, Claude and Gemini into every tab | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) | | 3 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) | | 4 | [Carly AI](https://openaitools.app/tool/carly-ai) | 340,001 | +1.5% | Freemium | Email an AI assistant and let it run your schedules, inbox and CRM | [.md](https://openaitools.app/tool/carly-ai.md) | | 5 | [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) | | 6 | [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) | | 7 | [Inbox Zero](https://openaitools.app/tool/inbox-zero) | 89,348 | +6.8% | Freemium, Free Trial | The AI email assistant that sorts your inbox and drafts replies in your voice | [.md](https://openaitools.app/tool/inbox-zero.md) | | 8 | [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) | | 9 | [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) | | 10 | [FiloMail](https://openaitools.app/tool/filo-mail) | 35,548 | -5.1% | Freemium | AI email client that turns your inbox into clear next steps | [.md](https://openaitools.app/tool/filo-mail.md) | --- Source: https://openaitools.app/compare/forthwrite-vs-inboxiq More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)