# ForthWrite vs HARPA AI

ForthWrite records 5,722 monthly visits with +4.6% month-over-month growth and Freemium, Free Trial, Contact for Pricing pricing. HARPA AI records 537,461 monthly visits with +99.3% growth and Freemium pricing.

| Metric | [ForthWrite](https://openaitools.app/tool/forthwrite) | [HARPA AI](https://openaitools.app/tool/harpa-ai) |
| :--- | :--- | :--- |
| Website URL | https://forthwrite.ai | https://harpa.ai |
| Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply | AI Agent, AI Browsers, AI Assistant, AI Productivity Tools |
| Pricing Model | Freemium, Free Trial, Contact for Pricing | Freemium |
| Monthly Visits | 5,722 | 537,461 |
| MoM Growth Rate | +4.6% | +99.3% |
| Primary Market | United States | United States |
| Direct Visits | 2,249 | 410,053 |
| Review Score | 4.2 | 4.6 |
| Saved Count | 0 | 30 |
| Supported Platforms | Website | Website |

## 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)

## HARPA AI

HARPA AI positions itself as a browser agent rather than just a chat sidebar. Press its keyboard shortcut on any web page and you get a choice of frontier models — GPT, Claude, Gemini, Perplexity, DeepSeek among others — plus ready-made prompts that understand the page you are on. That page awareness is the differentiator: it can summarise a long article or PDF, answer alongside search results with citations, draft a reply in your own writing style, or explain an error message in context rather than in the abstract.

Alongside the assistant features sits a real automation layer. HARPA can monitor web pages for changes, watch e-commerce listings for price drops and restock alerts, scrape structured data from sites, and chain actions into Zapier, Make.com or IFTTT. You can drive the browser remotely from those tools, which turns the extension into an automation worker rather than a passive helper. Custom GPTs and team agents can be brought into the browser with access to page content, search and automation functions.

HARPA markets itself on privacy: it runs locally in the browser, does not log conversations and actions, is GDPR-compliant, and can be pointed at local models such as Meta Llama or at your own API keys. It has a free tier and a short premium trial, with paid plans starting around $12 per month billed annually that add CloudGPT access, cloud command storage and chat history. The extension is aimed at professionals and teams who want AI assistance and automation on the sites they already use, without switching tools.

**Pricing & Plans:** HARPA AI has a basic free tier plus a demo period for premium features. Paid plans start around $12 per month when billed annually, adding CloudGPT connectivity, cloud command storage and chat history. Bring-your-own API keys (OpenAI, Claude, Gemini, OpenRouter) are also supported.

- **Multi-model access:** Switch between GPT, Claude, Gemini, Perplexity, DeepSeek and other models from one extension on any page, without juggling separate tabs or subscriptions.
- **Page-aware prompts and summarising:** Summarise long articles, PDFs and YouTube videos, ask follow-up questions about the content, or jump to the relevant timestamp in a video.
- **Web monitoring and price tracking:** Track page changes, price drops and back-in-stock alerts across e-commerce sites, with notifications when something moves.
- **Scraping and automation:** Extract structured data from websites, fill forms, click through flows and trigger Zapier, Make.com, IFTTT or n8n chains.
- **Writing in your voice:** Draft emails, replies, posts and long-form articles that mimic your own writing style, with grammar, rephrase and translate shortcuts.

**Strengths:** Access to several frontier models from one extension instead of separate subscriptions; Genuine automation: page monitoring, price tracking, scraping and form filling; Page-aware prompts that work with the content you are actually reading; Privacy-oriented: no conversation logging, local execution, GDPR compliance

**Limitations:** Generative features depend on connecting an AI provider or the paid CloudGPT; Chrome-extension based, so it is tied to Chromium browsers; The breadth of features takes time to learn and configure

[Profile (Markdown)](https://openaitools.app/tool/harpa-ai.md)

## Frequently Asked Questions

### How do ForthWrite and HARPA AI compare in monthly traffic?

ForthWrite has 5,722 monthly visits, while HARPA AI has 537,461. 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%; HARPA AI has +99.3%.

### 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. HARPA AI: Freemium. HARPA AI has a basic free tier plus a demo period for premium features. Paid plans start around $12 per month when billed annually, adding CloudGPT connectivity, cloud command storage and chat history. Bring-your-own API keys (OpenAI, Claude, Gemini, OpenRouter) are also supported.

## 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 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Provides a richer all-in-one workspace with writing and painting tools, but is less focused on customizable scraping macros. | [.md](https://openaitools.app/tool/monica-ai.md) |
| 3 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | Offers a cleaner multi-model browser sidebar experience, but lacks HARPA's advanced no-code web automation macros. | [.md](https://openaitools.app/tool/sider.md) |
| 4 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Stronger multi-model model selection and email integration, but offers less granular browser task automation workflows. | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 5 | [Glasp](https://openaitools.app/tool/glasp) | 889,564 | -14.1% | Freemium | Great for social highlighting and YouTube knowledge capture, but offers less automated web workflow scripting than HARPA. | [.md](https://openaitools.app/tool/glasp.md) |
| 6 | [Tabbit Browser](https://openaitools.app/tool/tabbit-ai) | 670,981 | -30.2% | Freemium | The agentic AI browser that reads your tabs, files, and screenshots as context | [.md](https://openaitools.app/tool/tabbit-ai.md) |
| 7 | [Thunderbit](https://openaitools.app/tool/thunderbit) | 391,726 | -21.9% | Freemium, Contact for Pricing | Excels at natural-language web scraping and structured data extraction, but lacks general-purpose conversational LLM sidebars. | [.md](https://openaitools.app/tool/thunderbit.md) |
| 8 | [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) |
| 9 | [Sigma AI Browser](https://openaitools.app/tool/sigma-ai-browser) | 240,775 | -47.1% | Free | A private Chromium browser with a built-in AI agent and offline LLM | [.md](https://openaitools.app/tool/sigma-ai-browser.md) |
| 10 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Faster automated summaries injected directly into search results, but lacks comprehensive browser automation and macro tools. | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |

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Source: https://openaitools.app/compare/forthwrite-vs-harpa-ai

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