# ForthWrite vs Letty

ForthWrite records 5,722 monthly visits with +4.6% month-over-month growth and Freemium, Free Trial, Contact for Pricing pricing. Letty records 198 monthly visits with -85.4% growth and Freemium pricing.

| Metric | [ForthWrite](https://openaitools.app/tool/forthwrite) | [Letty](https://openaitools.app/tool/letty) |
| :--- | :--- | :--- |
| Website URL | https://forthwrite.ai | https://www.useletty.com |
| Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply |
| Pricing Model | Freemium, Free Trial, Contact for Pricing | Freemium |
| Monthly Visits | 5,722 | 198 |
| MoM Growth Rate | +4.6% | -85.4% |
| Primary Market | United States | India |
| Direct Visits | 2,249 | 77 |
| Review Score | 4.2 | 3.8 |
| Saved Count | 0 | 1 |
| 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)

## Letty

Letty positions itself as an inbox productivity layer rather than a full email client. After installing the Chrome extension, it appears alongside your Gmail composition window and analyses the thread in front of you. From there it can propose a contextually relevant reply, draft a longer message from a short prompt, or help you match the tone of earlier messages in the chain. The goal is straightforward: cut the minutes you spend staring at a blank reply box.

What separates Letty from a generic writing assistant is the training step. You can feed it your own documents, an FAQ list, or the text of a website, and it will pull answers and phrasing from that material when it writes. The dashboard reports how many characters you have attached, which makes it practical for support teams or founders who answer the same questions repeatedly.

Pricing follows a freemium shape with a genuinely usable entry point. The Free plan gives 10 AI credits each month and room for up to 400,000 training characters. Paid tiers step up quickly: Premium adds 150 credits and up to 4 million characters, and Platinum lifts credits to unlimited with a 10 million character training allowance. Credits reset on the first of each calendar month. The platform is Gmail-only today, with Outlook and Zoho described as future additions.

**Pricing & Plans:** Freemium. A Free plan offers 10 AI credits per month and up to 400,000 training characters. Premium is $9/month for 150 credits and 4M characters, and Platinum is $19/month for unlimited credits and 10M characters. Annual billing discounts are available, and credits reset each calendar month.

- **Context-aware smart replies:** Letty reads the incoming thread and proposes replies that fit the conversation, helping you clear your inbox without writing every response from scratch.
- **One-click email drafting:** Turn a rough idea into a finished message. Letty drafts professional emails for pitches, follow-ups, introductions, and everyday correspondence.
- **Train on your own knowledge:** Attach documents, FAQs, or a website URL and Letty draws on that material to answer questions accurately in your replies.
- **Style matching:** Letty can mirror your tone and phrasing so outgoing mail sounds like you rather than a generic template.
- **Gmail-native extension:** Letty lives inside Gmail as a Chrome extension, so drafting and replying happen where you already work with no separate app to manage.

**Strengths:** Works inside Gmail, so there is no new inbox to learn; Training on your own documents or website produces more accurate, on-brand replies; Free tier lets you test the core workflow at no cost; Clear, tiered pricing with an unlimited-credit top plan

**Limitations:** Officially supports Gmail only; Outlook and other providers are listed as “coming soon”; Free tier is capped at 10 AI credits per month and modest training-character limits; Credit allowances reset on the calendar month rather than the billing anniversary; Advanced controls for style fine-tuning require effort before replies fully match your voice

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

## Frequently Asked Questions

### How do ForthWrite and Letty compare in monthly traffic?

ForthWrite has 5,722 monthly visits, while Letty has 198. 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%; Letty has -85.4%.

### 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. Letty: Freemium. Freemium. A Free plan offers 10 AI credits per month and up to 400,000 training characters. Premium is $9/month for 150 credits and 4M characters, and Platinum is $19/month for unlimited credits and 10M characters. Annual billing discounts are available, and credits reset each calendar month.

## 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 | [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) |
| 3 | [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) |
| 4 | [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) |
| 5 | [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) |
| 6 | [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) |
| 7 | [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) |
| 8 | [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) |
| 9 | [Lavender](https://openaitools.app/tool/lavender) | 12,063 | -14.6% | Freemium, Free Trial | AI email coach and sales agent that scores and rewrites your cold emails | [.md](https://openaitools.app/tool/lavender.md) |
| 10 | [Ellie](https://openaitools.app/tool/tryellie-com) | 9,297 | -0.3% | Free Trial, Paid | Your inbox on autopilot — replies drafted overnight in your own voice. | [.md](https://openaitools.app/tool/tryellie-com.md) |

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Source: https://openaitools.app/compare/forthwrite-vs-letty

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